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DB-750X User Manual

1. xh if 2 Tone encode is programmed with name the LCD will display 5 NOTE corresponding name Press the main band selector knob or key to store value and back to function menu Press key or hold selector knob for 1 second to store setup and exit a After choosing the 2 Tone encode group hold the PTT while pressing the NOTE UP key will transmit the selected code General Setting IR 5 TONE ENCODE SELECT 4 Switch the main band selector knob to choose desired value 1 Press key to enter function menu E waa Ra MEAE ME SANJ anced TAN kk te EI 2 Turn the main band selector knob to See 2T means DTMF signaling is added en choose No 08 menu The LCD displays 5TN ENC 5T means DTMF signaling is added TEM AT vun ER 3 Press the main band selector knob to enter function setup OFF Turn off optional signaling xe k 4 Switch the main band selector knob to Zu og uam v 5 Press the main band selector knob or ser TOM ST YR os choose desired value ae Ne key to store value and return to function Available Values 0 99 total 100 groups menu Press key or hold selector knob for 1 second to store 14 if 5 Tone encode is programmed with name the LCD will display setup and exit er corresponding name a Additional signaling shall work associated with the squelch mode setup 5 Press the main band selector knob or key to store value and note Refer to Sque
2. and CTCSS frequency press the UP DOWN key to choose CTCSS encode When the LCD displays ENC DEC and CTCSS frequency press the microphone UP DOWN key to choose CTCSS decode When the LCD displays DCS and DCS code press the microphone UP DOWN key to choose DCS code MHZ In VFO mode press the key programmed as MHz function the megabit digital in the LCD flashes Now turn the channel knob or microphone UP DOWN key to adjust frequency by 1 MHz step In channel mode press this key the channel number flashes Adjust selector knob or microphone UP DOWN key to adjust channel 28 REV In standby press the key programmed as REV function to turn on or turn off Frequency Reverse function HOME HOME channel switch In standby lt 8 ie ac press the key programmed as HOME function to switch between home channel and current channel MAIN Main band switch In standby press op wa oe aa MALIM TWA IC 3 the key programmed as MAIN function to choose left band or right band as main band VFO MR Working mode switch In standby cp 5 press the key programmed as VFO MR function to switch between channel mode and frequency mode SCAN Scan function In standby press the am ac key programmed as SCAN function to start l channel scan or frequency scan SQL OFF Turn off squelch In standby press the k
3. second to store setup and exit a This function should not be used on amateur frequencies as it is illegal Note per FCC rules SS TONE BURST This function is used to start a repeater Certain repeaters reguire a tone burst to start when dormant There is no need to send the tone burst again once the repeater is activated 1 2 Press key to enter function menu E D 5 TU T LAANA IKI e 1 H mu ZI Turn the main band selector knob to om choose No 19 menu The LCD displays TBST Press the main band selector knob to enter function setup Switch the main band selector knob to choose desired frequency 1000 Burst frequency is 1000 Hz me ar eee 1450 Burst frequency is 1450 Hz 1750 Burst freguency is 1750 Hz 2100 Burst freguency is 2100 Hz 5 Press the main band selector knob or key to store value and return to function menu Press key or hold selector knob for 1 second to store setup and exit a After the above setup to activate repeater hold microphone PTT key and NOTE DOWN key and the radio will transmit selected tone SS KEYPAD MODE SETUP 1 2 Press key to enter function menu eu ap 7 KILL L I CG Turn the main band selector knob to choose No 20 menu The LCD displays KEYMOD Press the main band selector knob to enter function setup Li ri Switch the main band selector knob to choose desired mode KEY1 Normal mode the top four
4. 03 menu the LCD displays STEP 3 Press the main band selector knob to enter function setup 4 Switch the main band selector knob to choose desired value Available Values 2 5 kHz 5 kHz 6 25 kHz IV ee ae 10 kHz 12 5 kHz 15 kHz 20 kHz 25 kHz _ 30 kHz 50 kHz 5 Press the main band selector knob or key to store value and return to function menu Press key or hold selector knob for one second to store setup and exit DB 750X 17 5 l General Setting rjo This function is auto hidden in channel mode SS VFO BAND LOCKOUT In VFO mode when this function is on the scanning or input of frequency will be restricted within the current VFO frequency band 1 Press key to enter function menu KE nuj ma Som len A za ma Ls P xl 2 Turn the main band selector knob to choose No 04 menu The LCD displays BAND 3 Press the main band selector knob to enter function setup 4 Switch the main band selector knob to choose desired value ON Turn on VFO band lockout function OFF Turn off VFO band lockout function Press the main band selector knob or key to store value and return to function menu Press key or hold selector knob for 1 second to store setup and exit SS BEEP FUNCTION 1 Press key to enter function menu 55 Where KI Law Ca e A i 1 aM 2 Turn the main band selector knob to choose No 05 menu The LCD displays BEEP 3 Pre
5. Press the main band selector knob to enter function setup 4 Switch the main band selector knob to choose desired value This transceiver is able to record 16 calls at most 5 Press the main band selector knob or _ BEE key to store value and return to function Jor Awun um ar menu Press key or hold selector Je om knob for one second to store setup and exit 1 Press key to enter function menu 55 gt E AM LU Mar ee 2 Turn the main band selector knob to P _ een choose No 50 menu The LCD displays AM 3 Press the main band selector knob to enter i D ap i function setup ou YAA Ae 4 Switch the main band selector knob to lw ze en Powerwerx choose desired value ON tum on AM function OFF tum off AM function 5 Press the main band selector knob or key to store value and return to function menu Press key or hold selector knob for one second to store setup and exit a This function is only valid when the main band frequency is VHF 108 Note 180 MHz on the left band Right band will not receive AM SS AUTOMATIC AM FUNCTION The radio will automatically receive AM mode when the VHF freguency is under 136 MHz Gi aD iG 1 Press ser key to enter function menu di Pe 2 Turn the main band selector knob to w e choose No 51 menu The LCD displays AUT AM 3 Press the main band selector knob to enter function setup 4 Switch the main band selector knob to choose desired value ON turn on auto AM function
6. TAK MOUNG EE 30 TEOFFAPTTL HOSKOUB s ee ee 23 Microphone Speaker ne 30 Squelch Level Setup RSie 23 Password hi D e et e WEE 30 Frequency KEE 23 Microphone Operation c ccccccsseeeseeeeeseeeeeseeeeeseeseeseeeeesees 31 Sub Band Mute Genp nennen nennen 24 Send DTMF Ggonalmg ee nnennne nennen 31 Editing Channel Name AAA 24 Main Sub Band Switching cccccccssecceeesseeeeeeeeeeeeeseeeeeeeaas 31 Channel Function Auto Storage Setup 24 Function Operation Through PA PD Keys 31 Microphone PA PB PC PD Key Setup 25 Memory Banks u en E 33 RF Squelch Level Setup nennen een 25 Assigning Memory Bank to a Channel 33 Repeater Offset Direction Setup 25 Choosing Active BANK nani u seen ana 33 Scan Dwell Time Getup 25 BANNING Serena 33 Priority Channel Stanz ke ie obi eb ipak 26 Cable CONE iii ene nenne 34 Offset Frequency Setup uu22220022snnesnnnnennnnnnnnnnnnnennennnnnn 26 Reset to Factory Detauht 34 Display Mode Setup 26 NED Eeer 35 TOT TimeOut Timer asses ee ie ed edie ee lee 27 Default Value for Factory Resume 39 VFO Frequency Linkage nennen nennen 27 Trouble Ghootng nennen nnennnen nennen 35 Busy Channel Lockout ne 27 ENEE 36 Radio s DTMF Se
7. avoid sub band disturbance of the main band turn on this function The RX of the sub band will be muted during RX or TX of the main band 1 Press key to enter function menu 2 Turn the main band selector knob to wir uam ne choose No 25 menu The LCD displays We MUTE 3 Press the main band selector knob to enter function setup 4 Switch the main band selector knob to choose desired value TX When the main band is transmitting the sub band will be muted RX When the main band is receiving the sub band receiving will be muted 2 Turn the main band selector knob to RX TX the sub band receiving is always 7 FT HE teh muted 5 Press the main band selector knob or key to store value and return to function menu Press key or hold selector knob for one second to store setup and exit General Setting SS EDITING CHANNEL NAME After editing a name for a channel if the display mode is channel name the LCD will display the name edited in this menu Otherwise it will display the frequency 1 Press ser key to enter function menu NAME O UMA ae 2 Switch the selector knob to choose No 26 function menu The LCD displays NAME C 3 Press the main band selector knob to enter function setup 4 Switch the selector knob to choose am LOIGI 1 desired character 5 Press the selector knob to confirm current character and to edit next character
8. carrier Ee de e j ML LI TIROL ID II OFF Busy channel lockout is disabled Transmitting is allowed in any receiving status Press the main band selector knob or key to store value and return to function menu Press key or hold selector knob for onesecond to store setup and exit ma RADIO S DTMF SELF ID ENQUIRY na Press key to enter function menu ECG SCS Switch the selector knob to choose No 39 Air 4 uha teh function The LCD displays DTMF ID 5 Press the main band selector knob to s enter function setup The LCD will show IK ua I the DTMF self ID pes Press the main band selector knob or key to store value and return to function menu Press key or hold selector knob for one second to store setup and exit Powerwerx SS 5 TONE SELF ID ENQUIRY 1 Press key to enter function menu ug 2 Switch the selector knob to choose No 40 function The LCD displays 5TON ID 3 Press the main band selector knob to enter function setup The LCD will show the DTME self ID 4 Press the main band selector knob or ser key to store value and return to function menu Press key or hold selector knob for 1 second to store setup and exit SS TOT TIME OUT TIMER The time out timer limits the amount of continuous transmitting time lt zi zi ben CN zl lt ry Da m LT When transmitting reaches the time limit that has been programmed the transmiss
9. di EU GU GH GU GU GH GN KAZAL GM H GN AAS CON ES ETI m m ma demm rd Cm demm nm m N MUTE DCS AM JUL iM D KAGEBNAr MUTE DCS amp JUL LM O D OZO FUNCTION Rotate it to choose frequency channel Press it to set the left band as Main Band In VFO mode press it to choose the frequency band In function setup as confirm key in scan mode rotate it to change scan direction Rotate it to choose frequency channel Press it to set the right band as Main Band In VFO mode press it to choose the frequency band In function setup as confirm key in scan mode rotate it to change scan direction Left Volume Knob Adjust left band volume level Right Volume Knob Adjust right band volume level Press this key and hold to adjust squelch while either turning left dial knob or right dial knob Getting Acquainted 6 Function set Key In standby press this key to enter function menu 7 Press it to power On Off the transceiver In standby press it to change H L power for left band channel Long press it to turn On Off Frequency Reverse Function Bottom LOW Key In standby press it to switch left band channel mode and VFO mode Long press it to set Wide Narrow band In standby press it to switch left band HOME channel and normal channel Long press it to enter dual watch of VFO channel and current channel Bottom V M Key Bottom HM Key In standby press it to start left
10. for storage If the DB 750X 14 15 KEME KB Shortcut Operations storage has data the LCD will display the freguency otherwise will display 3 A Hold key The LCD will display MEN IN and channel copy was completed SS MEMORY CHANNEL DELETE 1 In standby hold key until the 34 transceiver beeps and channel number ME flashes 2 Turn selector knob to choose channel number for delete If the storage has data the LCD will display the freguency otherwise will display 3 Hold Left band volume knob until the transceiver beeps twice and LCD displays MEN OUT Channel delete was completed Powerwerx Basic operation steps for function menu Press key to enter function menu Turn the main band selector knob to choose desired function Press the main band selector knob to enter function setup Switch the main band selector knob to choose desired value Press the main band selector knob to store value and back to function menu Press key or hold selector knob for over one second to store setup and exit MK WN SS APO AUTOMATIC POWER OFF Once APO is activated the transceiver will automatically switch off when the pre set timer runs out Gi aD 1 Press key to enter function menu EH m 2 Turn the main band selector knob to u u choose No 01 menu The LCD displays APO 3 Press the main band selector knob to enter function setup A Switch the main band select
11. keys have same functions as the buttom four keys KEY2 The top four keys are shared by both bands The bottom four keys will be re defined A0 aD LC Se LANA 4 NEN E LIKI 1 Press the main band selector knob or key to store value and return to function menu Press key or hold selector knob for 1 second to store setup and exit Configuration of keypad in KEY2 mode 1 Top tod short press In VFO mode short press this key the freguency step size changes to 1 MHz In channel mode adjust selector knob to jump 10 channels 2 Bottom long press In standby long press this key to add delete optional signaling repeat the long press to set optional signaling to DTMF 5 Tone or 2 Tone General Setting LCD display of DT means DTMF 5T means 5 Tone 2T means 2 Tone Bottom band long press Talk Around When this function is activated transceiver does not communicate through the repeater The transceiver will transmit on the repeater s output freguency with its CTCSS DCS signaling Repeat the operation to turn off Talk Around Bottom short press Freguency reverse function When current channel is setup with offset direction and offset freguency press this key to turn on freguency reverse function When freguency reverse function is on the TX freguency changes to the RX freguency and RX freguency changes to the TX freguency The signaling will also be reversed if CTCSS DCS signaling existed in this channel Rep
12. p m ma d MI MI Ma rna zanimi von m ED MS Nar uM eee esl EEA mm GB BOB DG B OOD Powerwerx NO O JOJHNJOJG ARIOJN meh meh mh O INDICATOR FUNCTION Displays the channel number and Menu number Appears when current channel is priority channel SKIP Appears when current channel is set Scan Skip ENC Appears when current channel has CTCSS Encode DEC Appears when current channel has CTCSS Decode Appears when the Offset function is ON Appears while transmitting aD Displays the Main channel Z MR AN O V Displays the operating freguency channel name Displays when receiving a signal or Monitor is ON Signal strength for receiving and power level for transmitting Appears while in Narrow band Appears when mute has been turned ON N M D Appears when the DCS function is ON A GC Appears when the Compander function is ON L am ssid Appears while in AM mode ar UTE cS M 5 Appears when the Scrambler function is ON JUL SET PT Appears while using Low output power Appears while using Middle output power Appears while Auto power off function is ON ef Appears when the Key Lock function is ON Appears when press SET key Appears when in KEY2 mode Appears when cross band repeat function is ON d EL Getting Acquainted SS MICROPHONE NO KEY FUNCTION Increase frequency channel number or setting value 2 ase NE channel number or 3 PTT Press the
13. 74 MHz and 400 490 MHz SS ADJUSTING CHANNEL ADJUSTING CHANNEL THROUGH SELECTOR KNOB In channel mode you can adjust the channel directly by the channel knob Turn clockwise to increase one channel turn counterclockwise to decrease one channel To adjust the main band channel press corresponding selector knob The channel number flashes in this situation the channel number will increase 10 channels by each click of selector knob Press microphone UP DOWN key also to adjust the channel a If there is any empty channel the adjustment will ignore it and jump to NOTE next channel INPUT CHANNEL THROUGH MIGROPHONE NUMBER KEY In channel mode you can switch to desired channel by pressing three of the microphone numeric keys 001 758 For example input 001 for channel 1 input 030 for channel 30 input 512 for channel 512 If the input channel is not programmed with freguency the transceiver will emit a warning beep and return to last channel IM SWITCH BETWEEN MAIN BAND AND SUB BAND This transceiver by default shows dual receive A MAIN icon will display in the top right of the working frequency Transmitting is only available on the main band When the left band is main band pressing the right selector knob will switch the right band to main band Pressing the left selector knob will switch the left band to main band z be Kl Paz D I o 47 im IL Ma SS SELECTING THE FREQUENCY
14. After editing all seven characters press the selector knob to confirm and return to function menu 6 If the editing does not reach seven characters press key to return to function menu then press key or hold selector knob for 24 one second to store setup and exit SS CHANNEL FUNCTION AUTO STORAGE SETUP This function stores current configuration for each channel When this function is on the temporary configuration for the current channel will be stored even if the channel is changed or the radio is powered off When this function is off the temporary configuration will not be stored The channel information will be restored to the last stored value after changing the channel or after the radio is powered off 1 Press to enter function menu choose No 27 menu The LCD displays HYPER 3 Press the main band selector knob to enter function setup 4 Switch the main band selector knob to e Tra choose desired value l General Setting MANUAL Auto storage is turned off AUTO Auto storage is turned on Press the main band selector knob or key to store value and return to function menu Press key or hold selector knob for 1 second to store setup and exit SS MICROPHONE PA PB PC PD KEY SETUP 1 3 4 5 Press the main band selector knob or key to store value and 25 Press key to enter function menu Turn the main band selector knob to pop Fu WHER 25 choose No 28 31 menu The LCD displays P
15. BAND 1 Left band VFO press the bottom m key to switch it to VFO mode press the left selector knob over one second then repeat above operation to switch the left band between 108 180 MHz RX 108 174 MHz TX 136 174 MHz 220 260 MHz RX only 350 399 995 MHz RX only or 400 490 MHz 2 Right band VFO press the top key to switch it to VFO mode press the right selector knob over one second then repeat above operation to switch the right band between 136 174MHz 400 490MHz m Basic Operations wu RE This transceiver can be set to RX TX on 2 UHF bands or 2 VHF bands SS RECEIVING In standby both left band and right band are able to receive When they receive any signal the BUSY icon and signal strength icon will appear in the corresponding area of the LCD and you will hear the audio i bj I 12 LI JIL hot DATA m di If the transceiver has been set at a higher sguelch level it may fail to gt hear the weaker stations If the BUSY and signal strength icon display NOTE in left band or right band but no station is heard read just the squelch level to above threshold SS SQUELCH OFF SOUELGH OFF MOMENTARY Long press of key can be programmed as Sguelch Off or Sguelch 12 Off Momentary to monitor the weak signal 1 Sguelch Off Hold key until you hear a beep the sguelch is off Repeat the above operation to resume squelch 2 Squelch Off Momentary Hold key to disable squelch
16. G PA PG PB PG PC PG PD Press the main band selector knob to enter function setup Switch the main band selector knob to choose desired value return to function menu Press key or hold selector knob for one second to store setup and exit gt For Menu details please refer to Page 31 32 Microphone Operation SR SOUELGH LEVEL SETUP When squelch level function is on you can cancel squelch only when the signal strength reaches the level setup by users 1 2 J 4 Press key to enter function menu Turn the main band selector knob to choose No 32 menu The LCD displays RF SQL 32 Db E Press the main band selector knob to enter function setup Switch the main band selector knob to choose desired value S 2 Able to hear a signal when the level meter reaches 1 bar Powerwerx S 5 Able to hear a signal when the level meter reaches 4 bars S 9 Able to hear a signal when the level meter reaches 8 bars S FULL Able to hear a signal when the level meter reaches full bars 5 Press the main band selector knob or set Ze pare key to store value and return to function gt gt OS A menu Press key or hold selector knob for one second to store setup and exit SS REPEATER OFFSET DIRECTION SETUP 1 Press key to enter function menu MN eee JA ee 2 Turn the main band selector knob to inr choose No 33 menu The LCD displays RPT MOD 3 P
17. PTT Push To Talk key to transmit 4 Number Key Input VFO freguency or DTMF dial out etc Wu O A B band Choose left band or right band as Main band Band indicator The indicator light on for Main band Light green while receiving Light red while transmitting N TX RX indicator co O Speak here during transmission _ Speaker Option to hear speaker thru microphone co E MIC Connector Diagram in the front view of connector Key Pad Serial Data D 5V DOWN UP SPKR AUDIO OUT 4 MIC GND 3 MIC PTT CD GND E gt LF DB 750X 11 counterclockwise to decrease the volume SERENA WE Basic Operations IN SWITCHING THE POWER ON OFF POWER ON Press key to switch the transceiver ON the LCD displays WELCOME DB 750X then 73 euc ne pe e pij WA Wt ER WA Dot bot displays current frequency or channel E m H GU Kal VM 5 Lt w acon MUTE DS co san LM O POWER OFF 2 Press key for 1 second to switch the transceiver OFF SS ADJUSTING THE VOLUME Rotate the VOLUME knob of selected 228 ase RY A MM VI 5 band clockwise to increase the volume so pe nie 4 To adjust the volume when no signal is present hold sa keep pressing it NOTE and adjust the VOLUME knob to desired level and release when done IN SWITCH BETWEEN VFO AND CHANNEL MODE In stand
18. Powerwerx DB 750X VHF UHF de OC E CT w ual Band Commercial Radio User s Manual Powerwerx offers the best in Land Mobile Commercial Communications featuring rugged mobiles and handhelds at affordable prices For additional information visit our web site www powerwerx com When programming this radio for the first time with the RPS DB750X USB programming kit it is recommended you first READ the radio with software and then save this file for future reference This commercial mobile radio ships from the manufacturer Display Locked per FCC Ch rules You must have the RPS DB 50X USB programming kit to unlock this radio for the NOTE first time of use To do this download the programming from the radio click on Settings then on Radio Menu Settings Remove the checkmark at the bottom of the 3rd column next to Key Lock Click on File and then on Save As give this template a name and then download to radio to complete the unlock process If you do not want to purchase this optional software your radio dealer must first unlock this radio before regular use or you could perform a factory reset which will remove the lock Refer to page 34 in this manual for this procedure Please contact the dealer you purchased this radio from or Powerwerx should you have any guestions Thank you for choosing this Powerwerx DB 750X Dual Band Land Mobile transceiver This dual band mobile is built to rugged commercial
19. Q The radio displays channel number s ee JE i PRENO MM ith frequency in channel mode rere LIV ME Z Press m key to change to VFO 7 mode Li HAL RM CH Displays only channel number NAME In channel mode it displays the channel number and channel name if the current channel is programmed with a name Otherwise it display the channel number and frequency Press m key to change to VFO mode Press the main band selector knob or key to store value and return to function menu Press key or hold selector knob for 1 second to store setup and exit DB 750X 27 l General Setting SS BUSY CHANNEL LOCKOUT With this function on the transceiver will not transmit on a busy channel to avoid disturbing other transceivers using same frequency If the channel is busy and you press PTT the transceiver will beep as warning and return to receiving 1 2 3 Press key to enter function menu oe Turn the main band selector knob to gw choose No 38 menu The LCD displays REPLOCK Press the main band selector knob to enter function setup Switch the main band selector knob to choose desired value RLORP Signaling busy lockout transmitting is inhibited when current channel receives a matching carrier but non matching CTCSS DCS RLOBU Channel busy lockout transmitting 795 Gog wan ade eu rk Lover tum TI LA is inhibited when current channel receives a matching
20. ROPHONE For voice communications connect a microphone equipped with an 8 pin modular plug into the modular socket on the right side of the control head Press firmly on the plug until the locking tab clicks Attach the supplied microphone hanger in an appropriate location using the screws included in the screw set Microphone connector Powerwerx Peis oe 4 E Initial Installation SS ACCESSORIES CONNECTIONS Antenna ANTMAG amp E I LS H External External Dual Speakers Single Use optional audio Y cable Speaker External Speaker Audio Y Cable MBXSPK MBXYCBL PG SOFTWARE PROGRAMMING When programming this radio for the first time with the optional PC Programming Kit RPS DB750X USB it is recommended you first READ this radio with the software and then save the file for future reference In addition after you READ this radio with the software make your programming and frequency changes then send this program back to your mobile radio nja Ask your dealer about purchasing a Programming Kit RPS DB750X USB IN FRONT PANEL REF TONE SUB u SI MHz e Basic Functions NO Left Dial Knob 2 Right Dial Knob AJo Wu Squelch e e ac e D D mm r NA 1 D D D DO mm
21. a OFF turn off auto AM function 5 Press the main band selector knob or key to store value and back to function menu Press key or hold selector knob for one second to store setup and exit RS IC 3 KI Re To enable automatic AM function the AM function must be turned on first IN EXTERNAL SPEAKER PORT The radio has two external speaker options 1 Press key to enter function menu 2 Turn the main band selector knob to choose No 52 menu The LCD displays VSPCONT 3 Press the main band selector knob to enter function setup 4 Switch the main band selector knob to choose desired value SEL 5 INT Internal soeaker VHF and UHF band share internal speaker Plug external speaker into the SP jack on rear of radio to hear both bands on external speaker EXT Plug the optional Y speaker cable into the ST jack on rear of radio along with two speakers to e split VHF and UHF audio Press the main band selector knob or key to store value and return to function menu Press key or hold selector knob for over one second to store setup and exit BEEP VOLUME CONTROL Press key to enter function menu Turn the main band selector knob to choose No 53 menu The LCD displays BP VOL Press the main band selector knob to enter function setup Switch the main band selector knob to mo choose desired value ie Se D LOW Beep volume is low SS D HIGH Beep volume is h
22. as follows Transceiver 15A Fuse Current Rating Supplied accessory DC Only use fuses of the specified type and rating otherwise the 6 transceiver could be damaged If you use the transceiver for a long period when the vehicle battery is Cha not fully charged or when the engine is OFF the battery may become NOTE discharged and will not have sufficient reserves to start the vehicle Avoid using the transceiver in these conditions SS ANTENNA CONNECTION Before operating install an efficient well tuned antenna The success of your installation will depend largely on the type of antenna and its correct installation The transceiver can give excellent results if the antenna system and its installation are given careful attention Use a 50 0 impedance antenna and low loss coaxial feed line that has a characteristic impedance of 50 Q to match the transceiver input impedance Coupling the antenna to the transceiver via feed lines having DB 750X 7 EXTERNAL SPEAKER If you plan to use the optional external speaker s MBXSPK there are two options For a single speaker plug into the upper 3 5 mm SP jack on the rear of the radio to hear both bands through one speaker To use dual speakers use the optional Y cable MBXYCBL and plug it into the lower 3 5 mm ST jack on the rear of the radio to split the left and right bands between the two speakers See page 29 for programming this function MIC
23. ast channel SS HYPER MEMORY CHANNEL In standby press the left or right volume knob to switch the radio to work on hyper channel 1 or hyper channel 2 SS DUAL WATCH In standby hold m key for one second to enter Dual Watch mode The radio will scan the channel every 5 seconds When the radio receives a matching signal it pauses scanning until the signal disappears Repeat above operation to exit dual watch SS EMERGENCY ALARM To start emergency alarm hold the right volume knob until the trans ceiver displays ALARM and emits an alarm Re power on the transceiver to exit alarm This transceiver has four kinds of alarm which can be setup by programming software SS MEMORY GHANNEL FREOUENCY SCAN FREQUENCY SCAN In VFO mode this function is designed to monitor signals at every step size you have set 1 In VFO mode press the main band Ga key to enter channel scan 2 During the scanning adjust the main band selector knob or press the microphone UP DOWN key to change the scan direction 3 Press Ga key to exit scan MEMORY CHANNEL SCAN 1 In channel mode press the main band Ga key to enter channel scan 2 During the scanning adjust the main band selector knob or press microphone UP DOWN key to change the scan direction 3 Press Ga key to exit scan SS MEMORY CHANNEL SCAN SKIP In channel mode switch selector knob to choose the channel then Shortcut Operations KE hold a for one
24. band channel or frequency scan In channel mode hold it to set current channel scan skip 11 Bottom SCAN Key In standby press it to change H L power for 12 Top LOW Key right band channel Long press it to turn On Off Freguency Reverse Function In standby press it to switch right band channel 13 Top V M Key mode and VFO mode Long press it to set Wide Narrow band In standby press it to switch right band HOME channel and normal channel Long press it to e PRIM enter dual watch of VFO channel and current channel In standby press it to start right band channel or 15 Top SCAN Key frequency Scan In channel mode hold it to set Le a channel scan skip 16 LCD PN S Maciel freguency and function display DB 750X GE Getting Acquainted A REAR PANEL GG AN wy x NO KEY FUNCTION 1 Ext Power Jack Not available in US model Terminal for optional dual external speakers ER 2 SE Dual Sproti See page 29 for external speaker programming Terminal for optional single external speaker See page 29 for external speaker programming 4 Heat Sink Fan Runs Automatically when radio temperature rises 5 Antenna Connector Connect a 50 Q antenna SS DISPLAY 3 Ext Single Spkr Port rad 7 ee ks i EWC DEC DIGI WA WA _ VA WA D at VVE ug NK DH JANE H GU Gu Gu DN DH GH S OO AH
25. by press corresponding m key to gt switch between frequency and channel mode 44 Zu Ian when the transceiver is in channel mode the F ap if LCD will display current channel ZE ZE up ae Powerwerx SS ADJUSTING FREQUENCY ADJUSTING FREQUENCY THROUGH SELECTOR KNOB In frequency VFO mode turn the selector knob clockwise to increase frequency counterclockwise to decrease frequency Every click will increase or decrease frequency by a one step To adjust the Main band freguency EE Ta SS JZAL JAMI RL VAM 5 Decrease frequency Increase frequency VAM press corresponding selector knob the left ran side of decimal point will flash In this status turn the selector knob to increase or decrease freguency guickly by 1 MHz steps OO The microphone UP DOWN key is also able to adjust frequency rja Pressing UP DOWN key will increase decrease the frequency by one step size Hold UP DOWN key to adjust the frequency continuously INPUT FREOUENGY THROUGH MIGROPHONE NUMBER KEY In VFO mode you can input the frequency from the microphone numeric keys It is invalid to input frequency out of the frequency band For example to input 150 125 MHz press 1 5 0 1 2 5 to input 152 MHz press 5 2 ze When the band lockout function is on the input or adjusting of freguency zj is limited to within the current VFO band The right band is limited to 136 1
26. ction setup DCS 000N 777I total 1024 groups a ee l General Setting 7 Press the main band selector knob or key to store value and return to function menu Press key or hold selector knob for one second to store setup and exit IN CTCSS DCS DECODE SETUP 1 Press key to enter function menu Tu Pa I E LIDD 7 IVA L AL A 1 2 Switch the main band selector knob to choose No 11 menu The LCD displays RX CDCS 3 Press the main band selector knob to enter function setup 4 Switch the main band selector knob to choose desired value OFF Turn off CTCSS DCS decode Ger vun ae CTCSS Choose CTCSS decode DCS Choose DCS decode ACL MAA teh 19 5 Press the main band selector knob to enter the menu 6 Switch the main band selector knob to choose desired CTCSS DCS code CTCSS 62 5 254 1 Hz and one self JI NE defined group total 52 groups DC 3 imi teh DCS 000N 7771 total 1024 groups GE ti me 7 Press the main band selector knob or a SS key to store value and return to function menu Press key or hold selector knob for 1 second to store setup and exit 3 CTCSS DCS decode works in conjunction with squelch mode setup Refer NOTE to Squelch Mode setup on page 20 Powerwerx SS SUB BAND DISPLAY SETUP 1 Press key to enter function menu AE e E J 2 Turn the main band selec
27. current channel is middle 1 When LCD displays MID2 the power for current channel is middle 2 When LCD displays LOW the power for current channel is low Output power for each level HeH mm we Low VHF 20 W VHF 10 W VHF 5 W VHF 50 W Powerwerx gt In channel mode this operation is for temporary use only m FREQUENCY REVERSE In standby hold key for one second to turn On Off frequency reverse function When reverse function is on the TX frequency will change to RX frequency and RX frequency will change to TX frequency The signaling will also be reversed for CTCSS DCS signaling set in this channel la This function is valid only when current channel is programmed with NOTE repeater offset frequency and offset direction SS BANDWIDTH SELECTION This transceiver has three bandwidths Select suitable bandwidth in accordance with different local conditions In standby hold 4 key for one second to choose the three bandwidths When LCD displays WIDE current channel is working on wide band 25 kHz When LCD displays MIDDLE current channel is working on middle band 20 kHz When LCD displays NARROW current channel is working on narrow band 12 5 kHz Per FCC Rules in North America wide band and narrow band is used See top of page 36 for band plan SS HOME CHANNEL In standby press m key to switch to HOME 7 JE channel and communicate on HOME channel 14 i na Repeatedly press it to return to l
28. den braking of your vehicle Try to pick a well ventilated location that is shielded from direct sunlight 1 Install the mounting bracket in the vehicle using the supplied self tapping screws 4pcs and flat washers 4pcs Car body Washer M5 Tapping screw M5X20mm Mounting bracket 2 Position the transceiver then insert and tighten the supplied hexagon screws e Double check that all screws are tightened to prevent vehicle vibration from loosening the bracket or transceiver Powerwerx e Determine the appropriate angle of the transceiver using the 3 screw hole positions on the side of the mounting bracket O lnitial Installation 4 Reconnect any wiring removed from the negative terminal SS DG POWER GABLE CONNECTION n gt For best operation connect directly to vehicle battery MOBILE OPERATION The vehicle battery voltage must be between 11 5 14 5 Volts DC Be sure to use a battery that has sufficient current capacity If the current to the transceiver is insufficient the display may darken during transmission or transmitting output power may drop excessively 1 Route the DC power cable supplied with the transceiver directly to the vehicle s battery terminals using the shortest path from the 5 Connect the DC power cable to the transceiver s power supply transceiver connector 2 If using the supplied power cable make sure the entire length of th
29. e cable is dressed so it is isolated from heat moisture and the engine high voltage ignition system e Press the connectors firmly together until the locking tab clicks 3 If using the optional Powerwerx TMCG 72 cigarette lighter plug make sure your cigarette lighter socket in your vehicle can handle 12 VDC 12 Amps AN Confirm the correct polarity of the connections then attach the power cable to the battery terminals red connects to the positive terminal and black connects to the negative terminal DC power cable IN e Use the length of cable nessary to reach your battery In particular never remove the fuse holders from the cable E LE DB 750X SEEN lnitial Installation BASE STATION OPERATION In order to use this transceiver for fixed base station operation you will need an optional SS 30DV DC power supply and optional Base Station Enclosure not included Please contact your local dealer for these items Power Supply SS 30DV 1 Connect the optional DC Power Adapter MBXRPA to the regulated DC Power Supply and ensure that the polarities are Power Supply SS 30DV correct Red positive Black negative 2 Connect the transceiver s DC power connector to the connector on the DC Power Adapter MBXRPA Base Station Radio l E a Enclosure MBXCOVR Press the connectors firmly together until the locking tab clicks MBXRPA Includes Power Adapter MBXRPA e Do not directl
30. eat the short press to turn off freguency reverse Bottom m long press In standby hold this key until the LCD displays JUL indicating the compander function is on Repeat above operation to turn off compander function Bottom su short press In standby press this key to set the CTCSS DCS code for current channel When the LCD displays ENC the current channel is enabled with CTCSS encode function When the LCD displays ENC and DEC the current channel is enabled with CTCSS DCS code function When the LCD displays DCS and DCS icon the current channel is enabled with CTCSS code function When the LCD displays OFF the current channels CTCSS DCS function is disabled Bottom sm long press In standby long press this key to enter CTCSS DCS scan When a matching CTCSS DCS signal is detected the scan will pause according to scan dwell time The scan direction can be changed by DB 750X 22 GER General Setting corresponding channel selector knob Note To enable this 3 Press the main band selector knob to enter function setup function the channel must be programmed with CTCSS DCS 4 Switch the main band selector knob to 5 __ decode choose desir d mode HANT F an th 8 Bottom short press The sub band will display MAIN BAND R lock the right band PTT Only able to transmit on left band ae WEBS IT Dis ees Vel Can Seu er SU bene wino BAND L lock the left band PTT Only able to
31. elector knob to choose desired value 30MS The time to transmit a single DTMF encode and the interval is 30ms 50MS The time to transmit a single DTMF encode and the interval is 50ms 80MS The time to transmit a single DTMF encode and the interval is 80ms 100MS The time to transmit a single DTMF encode and the interval is 100ms 150MS The time to transmit a single DTMF encode and the interval is 150ms 200MS The time to transmit a single DTMF encode and the interval is 200ms 250MS The time to transmit a single DTMF encode and the interval is 250ms i 4 m 1G Press the main band selector knob or mar vn ae key to store value and return to function Bass me ei menu Press key or hold selector knob for one second to store setup and exit SS DTMF ENCODE SETUP 1 2 3 Press to enter function menu Switch the main band selector knob to choose No 15 menu The LCD displays DTMF W Press the main band selector knob to enter function setup Switch the main band selector knob to choose DTMF group Then press key back to DTMF menu Press sr ez PTT to transmit with selected DTMF code 72b 3 ia i a 06 16 total 16 group of DTMF code ZD 5 General Setting 5 When the selected group is empty the p rz m 5 LCD displays a UN 6 Press the selector SR to enter the DTMF signaling edit The LCD displays and the last character flashes feste IC 3 i
32. enter function setup Switch the main band selector knob to choose which banks to link The following menus allow you to link banks A J ON OFF Select ON to turn on Bank Linking OFF to turn off Bank Linking Menu 58 Bank A Link ON OFF Menu 59 Bank B Link ON OFF Menu 60 Bank C Link ON OFF Menu 61 Bank D Link ON OFF Menu 62 Bank E Link ON OFF Menu 63 Bank F Link ON OFF Menu 64 Bank G Link ON OFF Menu 65 Bank H Link ON OFF Menu 66 Bank Link ON OFF Menu 67 Bank J Link ON OFF Press the main band selector knob or key to store Cable Clone This feature will copy the programmed data and parameters from the master unit to slave units It copies the parameters and memory program settings Use optional MBXCLON cloning cable connect the cable between the data jacks on both master and slave Power on slave unit On master unit hold top key while powering on and hold this key until LCD displays CLONE On master unit turn left volume key down to 0 On master unit hold key till beep is heard release then short press key to activate cloning 34 While cloning both master and slave units will display CLONE XX where XX stands for amount of data being cloned T When master unit displays CLONE again and the slave unit repowers on cloning is complete NAMA WNNS la To clone multiple radios switch the slave unit with another radio by connecting the clone cable in the data jack Turn the new slave radio o
33. ey programmed as SQL OFF function to turn off squelch to hear very weak signals Repeat the above function to turn on squelch TBST Transmit tone burst In standby press the key programmed as TBST function be to transmit selected tone burst This function is used to access some repeaters Microphone Operation g CALL OUT Calling In standby press the Z u key programmed as CALL OUT function to transmit pre programmed DTMF 2 Tone or 5 Tone code COMP Compander function In standby Fr press the key programmed as COMP to turn on or turn off compander function SCR Scrambler function In standby press se 4 the key programmed as SCR function to turn SS on or turn off scrambler function Choose optional scrambler groups from nine fixed groups and two self defined groups TONE DEC Add optional signaling In standby press the key programmed as TONE DEC function to choose DTMF DT 2 Tone 2T 5 Tone BT or OFF 32 WIN Wide or narrow band setup In urada 13 Ru IN mini TL 3 standby press the key programmed as W N function to choose wide band middle band and narrow band TALK Transceiver transmits on repeater an ujm E output Press the key programmed as TALK to turn on or turn off talk around function OFF No function DB 750X SEMENI WEB Memory Banks 10 memory banks are available for memo
34. function setup 4 Switch the main band selector knob to choose desired value WIDE Wide band 25 kHz Be ae MIDDLE Middle band 20 kHz Mea NARROW Narrow band 12 5 kHz ant vn ae 5 Press the main band selector knob or SS key to store value and return to function NARROW O Ya 25 menu IA CROSS BAND REPEAT Set the left band and right band as VHF 136 174 MHz and UHF 400 470 MHz then turn on this function to enable Cross Band Repeat CAUTION WHEN USING CROSS BAND REPEAT IT IS SUGGESTED TO USE THE LOWEST AMOUNT OF TX POWER FOR RELIABLE COMMUNICATIONS TO AVOID OVERHEATING YOUR RADIO 1 Press key to enter function menu General Setting Switch the selector knob to choose No 44 function The LCD displays X RPT Press the main band selector knob The LCD USE Mia Press the main band selector knob the op radio beeps and the LCD displays RPT e The cross band repeat function is on VOTART YARIS nja Press to turn off cross band function CROSS BAND MIG ENABLE 2014 Model Enabling this function will allow the microphone to transmit audio when the unit is in Cross Band Repeat and the PTT is pressed 1 AWN L 1 2 Ge Press key to enter function menu Switch the selector knob to No 69 The LCD displays REP PTT Press the Main selector knob to turn this function ON or OFF 28 Press the main band selector knob or key to store value and retu
35. ger transmit key downs it is recommended you use the MID1 or MID2 medium power level settings CONTENTS New and Innovative Features nee 1 High Mid Low Tranmit Power Switch 13 PYEGUGMCY RANGE asic test ee 1 Frequency Reverse 13 W 1 Bandwidth Selection cccccssssceccsssececessseeeseeeseesseeeeeeesees 13 SUPPIIEA ACCESSON SC Siete in een ane bne kacija 2 Home Channel esisi en 13 Optional Accessories sina En eels 2 Hyper Memory Channel 13 Supplied Accessories Optional Accessories 2 Dall Wate E 14 MODNE installallon nn 3 Emergency AGI estes ei Gon nee 14 initial TE TE e WEE 3 Memory Channel Freguency Scan 14 DC Power Cable Connection 4 Memory Channel Scan Skip 14 Antenna Connection ne 6 Memory Channel addi 14 Accessories Conpnechons ne T Scan Range E un EE 14 Getting Acquainted E 8 Memory Channel Copy s nsssnnnsssnnnnesrreensrrrnesrrresrrressnrrrrsnne 14 FROME panel EE 8 Memory Channel Delete 15 Rear DANG NEE 9 General d e a me 16 Display ae ee Rebe 9 APO Automatic Power oft 16 Ville EO DD ON E 10 Automatic Ollselassse osetia cet a ec 16 Basic Operations nannten 11 Frequency Channel Step Getup 16 Switching The Power Om 11 VEO Band Me e EE 17 Adjusting The Volume REENEN 11 Se UNCON NEE 17 Switch between VFO and Channel
36. he LCD displays SCAN M Press the main band selector knob to enter function setup Switch the main band selector knob to choose desired value MAILING pth MEN Channel Scan the transceiver will scan all the channels _ MSN Priority Channel Scaning the transceiver will only scan the priority channel Press the main band selector knob or key to store value and return to function menu Press key or hold selector knob for one second to store setup and exit K Before using the priority channel scan function the edited channel must be programmed as P SCAN General Setting SS OFFSET FREQUENCY SETUP 1 2 3 Press key to enter function menu Turn the main band selector knob to SS choose No 36 menu The LCD displays SHIFT Press the main band selector knob to enter function setup Switch the main band selector knob to choose desired value Available offset frequency for this transceiver is 0 100 MHz Press the main band selector knob or key to store value and return to function menu Press key or hold selector knob for 1 second to store setup and exit SS DISPLAY MODE SETUP 1 Press key to enter function menu 7 Coo CIR ACL Turn the main band selector knob to Ha teo choose No 37 menu The LCD displays DISPLAY ce Press the main band selector knob to enter function setup Switch the main band selector knob to choose desired value FRE
37. igh De na Press the main band selector knob or ser key to store value and return to function menu SS TALK AROUND NS With this function on the transceiver will transmit on the repeater output frequency when current channel is programmed with a repeater offset i Press key to enter function menu Turn the main band selector knob to No 54 menu The LCD displays u Ou HAA 55 TALK E na Press the main band selector knob to enter function setup Switch the main band selector knob to choose desired value ON Turn on Talk Around OFF Turn off Talk Around General Setting 5 Press the main band selector knob or key to store value and return to function menu Press key or hold selector knob for 1 second to store setup and exit SS MICROPHONE SPEAKER Press key to enter function menu Turn the main band selector knob to choose No 55 menu The LCD displays HND SPK 3 Press the main band selector knob to enter function setup 4 Switch the main band selector knob to choose desired value NS HSPKOFF Turn off microphone speaker or gt E HSPK ON Turn on microphone speaker HNI SPR YR Ob MSPKOFF Turn off main speaker nm 5 Press the main band selector knob or y ae es nem key to store value and return to nar Z kliki IE function menu Press key or hold selector knob for over 1 second to store setup and exit 30 SS PASSWORD FUNCTION z6 1 Press ke
38. ion will be cut off and will emit a warning beep 1 Press key to enter function menu le f 2 Turn the main band selector knob to luk choose No 41 menu The LCD displays TOT 3 Press the main band selector knob to enter function setup 4 Switch the main band selector knob to choose desired value 1 30 MIN total 30 levels Ti D na OFF TOT is disabled wel 5 Press the main band selector knob or key to store value and return to function menu Press key or hold selector knob for 1 second to store setup and exit SS VFO FREQUENCY LINKAGE Enable this function to adjust VFO frequency will bring same frequency simultaneously for both bands Adjust one knob and the frequency for both bands will increase or decrease one step size value 1 Press key to enter function menu 2 Turn the Main band selector knob to choose RO 42 menu The LCD displays VFOTR ee af ae ae 3 Press the main band selector knob to al enter function setup 4 Switch the main band selector knob to choose desired value Available values ON OFF 5 Press the main band selector knob or key to store value and return to function menu me This function is only valid when both bands are on VFO mode IA WIDE NARROW BAND 1 Press ser ser key to enter function menu ur AR Fr Rm 2 Turn the main band selector knob to m choose No 43 menu The LCD displays WIDNAR 3 Press the main band selector knob to enter
39. lch Mode setup on page 20 return to function menu Press key or hold selector knob for 1 second to store setup and exit a After choosing the 5 Tone encode group hold the PTT while pressing the m CTCSS DCS ENGODE SETUP PLA NOTE UP key will transmit the selected code 1 Press key to enter function menu iW Sep Ki IS IH 18 2 Switch the main band selector knob to 7 choose No 10 menu The LCD displays TX CDCS IM ADDITIONAL SIGNALING FEATURE 3 Press the main band selector knob to enter function setup This transceiver has three optional signaling functions DTMF 5 Tone 4 Switch the main band selector knob to choose SA 2 Tone These signaling functions are similar to CTCSS DCS signaling OFF Turn off CTCSS DCS encode TESS 4AA gs When the receiver adds optional signaling the caller shall transmit CTCSS Choose CTCSS encode matching signaling DTMF and 5 Tone signaling can be applied for other DCS Choose DCS encode OE UH AO advanced features such as ANI PTT ID group call select call etc amp Piece tae main bandselectorknob lo enter e SEN e 1 Press key to enter function menu 6 Switch the main band selector knob to choose desired CTCSS DCS 2 Turn the main band selector knob to choose No 09 menu The LCD code Tec D E E TON JEC MEE tes CTCSS 62 5 254 1 Hz and one self O 3 Press the main band selector knob to e defined group total 52 groups er EL enter fun
40. lf ID Enquiry cccccecceeeeseeeeeeeeeeeeeeaes 2 Attached Chart ea eat 37 5 Tone Self ID Enquiry ccccccsseececessseeeceeseeecseeseeeeseaaes 27 51 groups CTCSS Tone Freguency Hz 37 Cross Band ROPALI E 28 1024 groups DCS Code nennen 37 Wide Nanmrow Band DEE 28 Menu Quick Reference List cssseeeeeseeeeeeeeeeeseeeneeseeees 39 Cross Band Mic Enable 2014 Model 28 EDEBacklight EE 28 Microphone Keypad Backlight Brightness 29 DB 750X a Features DB 750X FEATURES 750 Memory Channels 10 Memory Banks with bank linking 7 Character Alphanumeric Display Power Output VHF 50 Watts UHF 40 Watts 4 power levels available for each band Dual Receive Operation V U V V U U U V with separate volume controls Narrow Band 2 5 kHz operation for Land Mobile frequencies FCC part 90 Wide Band 5 0 kHz operation for Amateur frequencies Dual or Single Display Receive Modes Large LCD Display with adjustable Colors and Brightness Built in CTCSS DCS per channel PC programmable with RPS DB750X USB Programming Kit Base Station Operation w optional Power Supply SS 30DV and optional Radio Enclosure MBXCOVR FREQUENCY RANGE RX 108 136 MHz AM TX 136 143 995 MHz FM Narrow 136 174 MHz FM Wide or FM Narrow 144 147 995 MHz FM Wide 220 260 MHz FM Wide 148 000 174 MHz FM Narrow 350 490 MHz FM Wide or FM Narr
41. mode ssssnnssssnnenseeenna 11 CPU Clock Frequency Change 17 Adjusting Frequency ENEE 11 2 Tone Encode Select ne 17 Adjusting Channel EE 11 5 Tone Encode Geet 18 Switch Between Main Band and Sub Band snnnnaannnneaaannn 12 Additional Signaling Feature 18 Selecting the Frequency Band 12 CTCss DCS Encode Sew a nn ae ee 18 RECEIVING rn nern een 12 CTCSS DCS Decode Setup uu 2220000220nnne nennen nennen nen 19 Sguelch Off Squelch Off Momentary 12 Sub Band Display Setup 19 IransmitiNng svi sei ea ea a a iva erraiee 12 DTMF Encode Pre Loading Time 19 Shortcut Operations cccccessseeeeseeeeeseeeeeessaeneeseeseeenseeeeeees 13 DTMF Encode Transmitting Time 20 Squelch level Setup vise ee Ei 13 DIMP Encode Seup ick neice Ee 20 Transmit DTMF 2 TONE 5 TONE signaling 13 Powerwerx _SSsSsSeSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSeSeeSeSeeEEEEEEEEEEEEEEEEEeEeeee CONTENTS Sguelch Mode Getup nennen 20 Galllng Record EE 29 EE Eet 21 ANIFURCHON EE 29 ScrambleTt SOU D WEE 21 Automatic AM Function onnennnnnonnnnnnnnnnnnnnnnnnnrsrrrnrerrenreenne 29 beige TEE 21 External Speaker POM ecek uriene 29 Keypad Mode Gen 22 Beep Volume Control nn 30 Keypad UOCKOM EE 23
42. n and then repeat step 5 NOTE above If the data is not successfully transmitted turn off both units Make sure the cable connection is correct and repeat the entire operation from the beginning IN FACTORY RESET If your radio seems to be malfunctioning because of wrong operation or setup this function will be able to resume all setup and channels to factory default Hold the top button while powering on the radio All channel and function setups will resume to factory default All memory channels will be erased DB 750X Maintenance BEDEFAULT VALUE FOR FACTORY RESUME Dual Band Mobile Radio OH Left band Right band VFO freguency 145 150 MHz 435 150 MHz Memory channel 1 750 Offset freguency 600 kHz 5 MHz Step size 10 kHz CTCSS freguency 88 5 Hz DCS code DCS group 017N Key lockout Powerwerx SS TROUBLE SHOOTING Problem a Power is on nothing appears on display b Fuse is blown c Display is too dim d No sound comes from speaker e Key and dial do not function f Rotating dial will not change memory channel g PTT key is pressed but transmission does not occur Possible Causes and Potential Solutions and polarities of power connection are reversed Connect red lead to plus terminal and black lead to minus terminal of DC power supply Check and solve problem resulting in blown fuse and replace fuse with new fuse Adjust the dimmer to higher level e Squelch i
43. on will decrease the background noise and enhance audio clarity especially in long range communication 1 Press key to enter function menu 7 D 5 JO Tina CIA LOH OC H Lee Mit IL 7 2 Turn the main band selector knob to choose No 17 menu The LCD displays COMP 3 Press the main band selector knob to enter function setup 4 Switch the main band selector knob to choose desired function ON Compander function is turned on OFF Compander function is turned off a dae 5 Press the main band selector knob or key to store value and back to function menu Press key or hold selector knob for 1 second to store setup and exit a When using compander to avoid distortion during communications turn NOTE on this function in all system radios IN SCRAMBLER SETUP Scrambling offers more confidential communications Radios on the same frequency as the scrambled radio will receive only indistinguishable noise Powerwerx NON Press key to enter function menu E e 5 Do ya LUA CC S ah nu IL Turn the main band selector knob to m choose No 18 menu The LCD displays SCR Press the main band selector knob to enter function setup Switch the main band selector knob to choose wanted group 1 9 nine fixed groups U1 U2 two self a a defined scrambler groups OFF e Press the main band selector knob or key to store value and back to function menu Press key or hold selector knob for one
44. or knob to 7 gt choose desired value Available values aad 0 5 12 hours OFF 5 Press the main band selector knob or key to store value and return to function menu Press key or hold selector knob for one second to store setup and exit SS AUTOMATIC OFFSET When this function is on the transceiver will automatically transmit with RX frequency offset frequency The operation is as follows 1 Press key to enter function menu General Setting 2 Turn the main band selector knob to choose No 02 menu The LCD displays ARS Be ge at Or LALA Er In 3 Press the main band selector knob to enter function setup 4 Switch the main band selector knob to desired wanted value ON Auto Offset function is turned on OFF Auto Offset function is turned off An oO 5 Press the Main band selector knob or key to store value and return to function menu Press key or hold selector knob for 1 second to store setup and exit LL TA IKI sz am 1 al CD Io TT 2 aD vi When the automatic offset is ON the offset for 136 174 MHz is default on NOTE 0 6 MHz and for 400 490 MHz is default on 5 MHz 16 IM FREQUENCY CHANNEL STEP SETUP Only in frequency VFO mode this function is valid Turn selector knob to select frequency or frequency scanning which is restricted by frequency step size 1 Press key to enter function menu ey 2 Turn the main band selector knob to choose No
45. ow 400 429 995 MHz FM Narrow 430 449 995 MHz FM Wide 450 469 995 MHz FM Narrow 470 490 MHz FM Wide Powerwerx Ka Supplied Accessories Optional Accessories SS SUPPLIED ACCESSORIES After carefully unpacking the transceiver identify the items listed in the table below We suggest you keep the box and packaging e Transceiver e Microphone with DTMF e Mobile Mounting e DC Power Cable with Hardware Kit for Bracket Keypad MBXDTMF Bracket MBXBRKT Fuse Holder Neuer ela RI pesa Soss OEM FM CAB a GER e Spare Fuses e User Manual 15 A e Base Station Radio Dual 2 MA OPTIONAL ACCESSORIES Enclosure MBXCOVR Band Mobile Mag Includes Power Adapter MBXRPA Mount Antenna e Front Panel Remote Kit Programming Kit e Cigarette Lighter Plug Power supply E ANTMAG MBXRMK RPS DB750X USB Connection 6 Feet SS 30DV e Power Adapter i w i HI MBXRPA e Desktop Microphone MBXDESk e External Speaker Y Cable e Power Line Clone Cable MBXSPK MBXYCBL Filter LF 1 OEM MBXCLON EM JUDI For a complete listing of current accessories see www powerwerx com mobile GE Initial Installation SS MOBILE INSTALLATION To install the transceiver select a safe convenient location inside your vehicle that minimizes danger to your passengers and yourself while the vehicle is in motion Consider installing the unit at an appropriate position so that knees or legs will not strike it during sud
46. radio standards and features 50 Watts power output on VHF and 40 Watts output on UHF seven character alphanumeric display AM Air Band receive and direct flow heavy duty heat sink with thermostatically controlled cooling fan designed for years of trouble free operation The DB 750X dual band radio offers four true dual receive modes V U V V U U and U V For simple operation this radio also features single display mode to monitor one channel at a time The DB 750X includes 750 memory channels 10 memory banks full duplex operation separate volume and squelch controls built in CTCSS DCS DTMF signaling and optional detachable remote front panel for flexible installation This dual band radio is offered as a mobile or can be configured as a base station using the optional SS 30DV Power Supply and MBXCOVR Radio Enclosure This mobile transceiver includes a variety of features so we recommend that you review this manual prior to using this radio Caution Please observe the following precautions to prevent fire personal injury or transceiver damage N Do not attempt to program your radio while driving N Do not place this transceiver in a dusty humid or wet area N Do not expose this transceiver to long periods of direct sunlight A Do not mount this transceiver or remote control head near vehicle heating vents N Do not transmit in the high power mode for extended periods of time as it may overheat the radio For lon
47. release the key to resume squelch mb In standby press the microphone EI to cancel squelch press it again to NOTE turn on the squelch SS TRANSMITTING Hold PTT key the transceiver will transmit Hold the microphone approximately 2 5 inches from your mouth and then speak into the microphone in your normal voice to get best results Transmitting is only available on the main band the TX icon will display NOTE in the top right corner of the main band frequency DB 750X UMA Shortcut Operations ia SOUELGH LEVEL SETUP This function is used to setup the level of receiving signals When the signal strength reaches a certain level it will unmute the transceiver In standby press and hold key meanwhile turn the selector knob to adjust the squelch level of Main band 23 ap IC CO TU I NL LI zi al a 1 20 20 squelch levels are available tdi tat OFF turn off squelch The background noise will remain on nf The squelch level setup is for right band and left band separately SS TRANSMIT DIMF 2 TONE S TONE SIGNALING If the current channel is programmed with DTMF 2 Tone 5 Tone 43 signaling hold PTT and UP key will transmit selected preprogrammed signaling SS HIGH MID LOW TRANSMIT POWER SWITCH In standby repeatedly press tow key to choose power levels as follows When LCD displays HIGH the power for current channel is high When LCD displays MID1 the power for
48. ress the main band selector knob to enter function setup 4 Switch the main band selector knob to choose desired offset direction Minus offset transmitting frequency is lower than receiving frequency Plus offset transmitting frequency is higher than receiving frequency OFF OFFSET is turned off Transmitting 33 5 frequency is same as receiving frequency KETO 1 WW ID JC 5 Press the main band selector knob or key to store value and return to function menu Press key or hold selector knob for 1 second to store setup and exit SS SCAN DWELL TIME SETUP 1 Press key to enter function menu Turn the main band selector knob to choose No 34 menu The LCD displays SCAN Press the main band selector knob to enter function setup Switch the Main band selector knob to 3 gt choose desired value TIME it pauses five seconds after detecting a matching signal then resumes scan BUSY it pauses after scanning a matching signal then resumes scan after the signal disappears for 2 seconds SECEDE It Stops after scanning a matching signal and exits scan Press the Main band selector knob or key to store value and return to function menu Press key or hold selector knob for one second to store setup and exit SS PRIORITY CHANNEL SCAN 1 2 Press key to enter function menu 35 DE ne Ane ha LAVASH TU AL IN one 1 I Turn the main band selector knob to choose No 35 menu T
49. rn to function menu LGD BACKLIGHT Press key to enter function menu Turn the main band selector knob to choose No 45 47 menu The LCD displays COL RED COL GRN COL BLU i ap iG Press the main band selector knob to com new 4am 136 L LI TTC A mini IL 3 enter function setup Nar pes HE ap bej Switch the main band selector knob to com zen YAA 125 choose desired value Each color red e Im X lan P e b M Mar Ls green blue has 32 brightness levels CDI Mi Press the main band selector knob or e key to store value and return to function stu Job menu pe bg al or zl Pe M tl Eo Ls l General Setting SS MICROPHONE KEYPAD BACKLIGHT BRIGHTNESS 1 2 Press key to enter function menu Turn the main band selector knob to choose No 48 menu The LCD displays DIMMER Press the main band selector knob to enter function setup Switch the main band selector knob to choose desired value from 32 brightness levels Press the main band selector knob or Nar DCS Cap key to store value and return to function menu Press key or hold selector knob for one second to store SS CALLING RECORD The transceiver offers enquiry of calling record i 45 ap E 1 Press key to enter function menu NOTE vn ve 2 Turn the main band selector knob to Le ss e choose No 49 menu The LCD displays NOTE 3
50. ry channel assignments to ease in operation of the DB 750X dual band radio You can enable one bank or multible banks through either software programming or through the radio itself SS ASSIGNING A CHANNEL TO A MEMORY BANK 1 2 J 4 5 33 6 Select memory channel to assign to a memory bank Press key to enter function menu Turn the main band selector knob to choose No 56 menu The LCD displays BAK Press the main band selector knob to enter function setup Switch the main band selector knob to choose desired value OFF No bank assignment A B C D E F G H I J to assign the selected bank Press the main band selector knob or key to store SS CHOOSING ACTIVE BANK Go NON Select either left or right band in memory mode Press key to enter bank mode Bank numbers show in the position of channel number If a channel number is not assigned a bank will show otherwise the assigned bank of that channel will show Rotate the selector knob to choose desired bank to view Press key to confirm Radio will switch to chosen bank You can now view or scan channels in choosen bank Press key two times to cancel bank view and return to memory view Powerwerx SS BANK LINKING Memory banks can be linked together for expanded scanning or viewing Press key to enter function menu Turn the main band selector knob to choose No 57 menu The LCD displays BALK Press the main band selector knob to
51. s background noise 26 NAMEC 134 EDITING CHANNEL NAME Z CHARACTERS Ci C C SCSCSCS Powerwerx 23 0 99 ION OFF Reducesbackgroundnoise o Z a Menu Quick Reference List Menu Name Default Page Functon Settingsg S 36 SHIFT Ten 26 OFFSET FREQUENCY SETUP O00 MHz 39 DTMFID Ton hr RADIO S DTMF SELF ID ENQUIRY TI 40 STONID 12345 27 STONE SELF EN 44 XRPT bs CROSSBAND REPEAT OO GRPT XSTART S 47 9 29 CALLING RECORD o 50 JAM Joy J AMFUNCTION e OONO N 54 Dax opt 30 TALKAROUND S O 55 HND SPK_ MSPKOFF 30 __ MICROPHONE SPEAKER HSPKOFF HSPKON MSPKOFFTTTTTTT 56 Joar Jor 93 MAIN BANK SET BANKS SET LEFT RIGHT SIDE OFF A B C D E F G HLJ TI 60 BLKC Topp 33 ENABLE LINK TO THE MAIN BANK SET ON OFF S 66 JBLKI Topp 33 ENABLE LINK TO THE MAIN BANK SET ON OFF S 686 Joes OFF 30 Ener a PASSWORD 69 REPPTT OFF 28 MICROPHONE VOICE CONTROL IN CROSS BAND ON OFF ___ o gt S O DB 750X 23695 Via Del Rio Yorba Linda CA 92887 FE 0 7000 e WWW poWerwerx com Rev E 3 2014
52. s key or hold selector knob for one second to store setup and 4 Switch the main band selector knob to choose desired mode l Ka CN Le e b OFF The keypad lockout function is turned off 5 Press the main band selector knob or key to store value and return to function menu Press key or hold selector knob for 1 a second to store setup and exit IM FREQUENCY REVERSE SS TX OFF PTT LOCKOUT With this function on the transceiver will transmit on the repeater 1 Press key to enter function menu 2 we output when current channel is programmed with repeater offset 2 Turn the main band selector knob to BE 1 Press ser key to enter function menu BER ee choose No 22 menu The LCD displays LOCKT 2 Turn the main band selector knob to Get ee Powerwerx choose No 24 menu The LCD displays REV 3 Press the main band selector knob to enter function setup 4 Switch the main band selector knob to choose wanted value ON Frequency reverse is turned on The TX and RX frequency will be exchanged The CTCSS DCS signaling also will be exchanged if existed in current channel D cu am iG OFF Turn off Frequency Reverse D I TN up ry ATA Read 1 f U b i ru L 5 Press the main band selector knob or km key to store value and return to function menu Press key or hold selector knob for one second to store setup and exit IN SUB BAND MUTE SETUP To
53. s muted Decrease squelch level e Tone or CTCSS DCS squelch is active Turn CTCSS or DCS squelch off Key lock function is activated Cancel key lock function Transceiver is in CALL mode or VFO mode e Microphone connection is poor Connect microphone properly e Antenna connection is poor Connect antenna properly Frequency range Number of channels Channel spacing Phase locked step Operating voltage Squelch Frequency stability Operating temperature Dimensions WxHxD Weight General RX 108 136 MHz AM 136 174 MHz FM Wide FM Narrow 220 260 MHz FM Wide 350 490 MHz FM Wide FM Narrow TX 136 143 995 MHz FM Narrow 144 147 995 MHz FM Wide 148 000 174 MHz FM Narrow 400 429 995 MHz FM Narrow 430 449 995 MHz FM Wide 450 469 995 MHz FM Narrow 470 490 MHz FM Wide 750 channels 25 kHz Wide band 20 kHz Middle band 12 5 kHz Narrow band 2 5 kHz 5 kHz 6 25 kHz 10 kHz 12 5 kHz 15 kHz 20 kHz 25 kHz 30 kHz 50 kHz 13 8 V DC 15 Carrier CT CSS DCS 5 Tone 2 Tone DT MF 2 5 ppm 20 60 C 139 W x 40 H x 212 D mm about 1 14 kg Specifications RX TX 136 174 MHz 400 490 MHz Receiver ETSI EN 301 783 Wide band Narrow band Sensitivity lt 0 25 uV lt 0 35 uV 12dB SINAD Adjacent channel me 270 dB 260 dB selectivity Audio response 1 3 dB 0 3 3 kHz 1 3 dB 0 3 2 55 kHz Hum amp Noise 245 dB 240 dB Audio distortion lt 5 Audio power output gt 2 W 10 Transmi
54. second The radio will beep Sr Ab i po twice and the LCD will display SKIP now the ss nn current channel will be skipped during scan SS MEMORY CHANNEL ADD 1 In VFO mode turn selector knob to select the desired frequency or input frequency by microphone numeric 3 keypad Set offset and CTCSS DCS 1AA 12 tones 2 Hold key until the transceiver beeps and the channel number flashes 3 Turn selector knob to select the channel number to store If the storage has data the LCD will display the 2 NE MALINE NE Li feste IL IM ON IKIRIL IL 7 frequency otherwise will display 4 Hold key The LCD will display MEN IN and channel edit is completed SS SCAN RANGE LIMIT You can set the VFO scan frequency range with this function 1 Choose upper limit and lower limit frequency Five pairs L1 U1 L5 U5 may be selected L stands for lower the limit and U stands for the upper limit the upper limit must be higher than the lower limit frequency Please refer to the Channel Edit to setup the limit frequency 2 In VFO mode set the VFO frequency in the range between upper and lower limit 3 Press Ga key to start scan in Imited range SS MEMORY CHANNEL COPY 1 In channel mode turn the selector knob to choose the channel 2 Hold key until the transceiver beeps and channel number flashes 3 Turn selector knob to choose channel number
55. ss the main band selector knob to enter function setup 4 Switch the main band selector knob to choose wanted value ON Turn on Beep function E ee SET LOM OFF Turn off Beep function ha La ei LI IT Cat 5 Press the main band selector knob or key to store value and return to function menu Press key or hold selector knob for one second to store setup and exit Powerwerx SS CPU CLOCK FREQUENCY CHANGE When any harmonic or image frequency in the CPU clock disturbs the working frequency turn on this function to cut the image channel noise 1 2 J Press key to enter function menu Turn the main band selector knob to choose No 06 menu The LCD displays CLK SFT Press the main band selector knob to enter ER setup Switch the main band selector knob to 5 a choose desired value Wi ON Turn on CPU clock frequency change LALA CT TL Ii OFF Turn off CPU clock frequency change Press the main band selector knob or key to store value and return to function menu Press key or hold selector knob for one second to store setup and exit IN 2 TONE ENCODE SELECT 1 2 J Press key to enter function menu RE gt Turn the main band selector knob to 5 choose No 07 menu The LCD displays 2TN ENC Press the main band selector knob to enter function setup Switch the main band selector knob to choose desired value Available Values 0 23 total 24 groups
56. tandby you can switch main band and sub band by the A B key SS FUNCTION OPERATION THROUGH PA PD KEYS The PA PB PC PD keys are programmable with ne following functions See page 25 for microphone programming zom MA Zu man ki Ic Km ant RPTR OFFSET direction setup In standby press the key programmed as RPTR function to change the offset direction When LCD displays means TX offset id plus when the LCD displays means TX offset is minus Powerwerx me This function is valid only when current channel is set with offset frequency PRI Add or delete priority channel In ur uam se channel mode press the key programmed as PRI function to set priority channel When the LCD displays amp the current channel is set as priority channel Repeat above operation the i disappears and the curent channel is not set as priority channel LOW Output power setup In standby press the key programmed as LOW function Ra to change the power level When LCD displays HIGH the transmitting power on current channel is high When LCD displays MID1 the transmitting power on current channel is middle 1 When LCD displays MID2 the transmitting power on current channel is middle 2 When LCD displays LOW the transmitting power on current channel is low TONE CTCSS DCS code setup In standby zs press the key programmed as TONE function d to setup CTCSS DCS code When the LCD displays ENC
57. tor knob to an ea a choose No 12 menu The LCD displays DSP SUB 3 Press the main band selector knob to enter function setup 4 Switch the main band selector knob to choose desired value FREQ display sub band frequency FREG uda th DC IN display sub band voltage a OFF turn off display for sub Band IC IM aw 5 Press the main band selector knob or iz e key to store value and return to function HFF menu Press key or hold selector knob for one second to store setup and exit MA DTMF ENCODE PRE LOADING TIME 1 Press key to enter function menu ee Ser Turn the main band selector knob to 2 7 7 choose No 13 menu The LCD displays DTMF D 3 Press the main band selector knob to enter function setup 4 Switch the main band selector knob to choose desired value 100MS The pre loading time is 100ms o a ae 300MS The pre loading time is 300ms nn ee o 500MS The pre loading time is 500ms 800MS The pre loading time is 800ms 1000MS The pre loading time is 1000ms 5 Press the main band selector knob or key to store value and back to function menu Press key or hold selector knob for one second to store setup and exit MA DTMF ENCODE TRANSMITTING TIME 1 2 3 Press key to enter function menu ra gt 5 TI TONA KT L LION E Turn the main band selector knob io ee choose No 14 menu The LCD displays DTMF S Press the main band selector knob to enter function setup Switch the main band s
58. transmit on right band Se eee eee en Malt Dan anche o osne BAND BOTH lock both band PTT Not able to transmit on any side OFF PTT no lock 5 Press the main band selector knob or key to store value and return to function menu Press key or hold selector knob for 1 second to store setup and exit 9 Bottom long press Choose scrambler group for main band In standby hold this key the LCD displays SCR X and G amp D icon X stands for the group number Repeat above operation to choose desired group SS KEYPAD LOCKOUT 1 Press key to enter function menu MOM EL SS SOUELCH LEVEL SETUP 2 Turn the main band selector knob to mee Ro 1 Press ser key to enter function menu E ee choose No 21 menu The LCD displays LOCK 2 Turn the main band selector knob o DE 23 3 Press the main band selector knob to enter function setup choose No 23 menu The LCD displays SQL 3 Press the main band selector knob to enter function setup 4 Switch the main band selector knob to choose desired value ion i at m 5 ON The keypad lockout function is turned ou uam ae 4 20 total 20 squelch levels 53 on WARNING All keys and functions of mo d j i cg cae SE OFF Turn off squelch function The the radio are locked To exit either reprogram the radio with software or perform a hard reset See page 34 for factory reset A A Ju j l Pag S l 5 Press the main band selector knob or key to store value Pres
59. tter ETSI EN 301 783 36 Wide band Narrow band 50 W 20 W 10 W 5 W VHF 40 W 25 W 10 W 5 W UHF Power output Modulation 16K PF3E 11K F3E Adjacent channel 270 dB gt 60 dB power Hum amp Noise 240 dB gt 36 dB Spurious emission gt 70 dB gt 70 dB Audio response 1 3dB 0 3 3 kHz 1 3dB 0 3 2 55 kHz Audio distortion lt 5 EE z DB 750X UD Attached Chart IN 51 GROUPS CTCSS TONE FREQUENCY HZ IN 1024 GROUPS DCS CODE ins ro us orjejo fon r ss vs esr fans i ora panoja ane po aaa reza anna pororaa The self defined CTCSS tone supports non standard codes The frequency must be pre programmed 0 000 010 020 030 040 050 060 100 110 120 130 140 150 160 200 210 220 230 240 250 260 300 310 320 330 Powerwerx 660 661 662 663 664 665 Ee Attached Chart DB 750X 38 kes Menu Quick Reference List Menu Name Default Page Function N 6 CLKSFT OFF 17 CPU CLOCK FREQUENCY CHANGE CON 7 2TNENC Jop 17 2TONE ENCODE SELECT rr 0 23 8 5TNENC Jon mg 5TONE ENCODE SELECT oZ o Z o T DTMF 2T 5T OFF 2 5 254 1 000N 7771 FF CTCSS DCS REQ DC IN OFF 00 ms 300 ms 500 ms 800 ms 1000 ms O ms 50 ms 80 ms 100 ms 150 ms 200 ms 250 ms DTMEW _ J 0 DTMF ENCODE SETUP 06 16 6 codes A Q CTSS DCS TONE CT TO CT TO ON OFF Reduce
60. y connect the transceiver to an AC outlet AN e Use the optional DC Power Adapter MBXRPA to connect the transceiver to a regulated power supply e Do not substitute a cable with smaller gauge wires Before connecting the DC power to the transceiver be sure to ER switch the transceiver and the DC Power Supply OFF Check nore If the input voltage selector switch in the back of the DC Power Supply is set to 115 slide the switch fully to the left position Do not plug the DC Power Supply into an AC outlet until you make all connections Powerwerx Initial Installation REPLACING FUSES an impedance other than 50 O reduces the efficiency of the antenna If the fuse blows determine the cause then correct the problem system and can cause interference to nearby broadcast television After the problem is resolved replace the fuse If newly installed receivers radio receivers and other electronic equipment fuses continue to blow disconnect the power cable and contact your authorized dealer or an authorized service center for assistance e Transmitting without first connecting an antenna or other matched load may damage the transceiver Always connect Re the antenna to the transceiver before transmitting e All fixed stations should be equipped with a lightning arrester to reduce the risk of fire electric shock and transceiver damage The possible locations of an antenna on a car are shown
61. y to enter function menu PAN Sd MM teh Turn the main band selector knob to choose No 68 menu The LCD displays PASSWD 3 Press the main band selector knob to ente function setup 4 Switch the main band selector knob to choose desired value ON Turn on password function OFF Turn off password function 5 Press the main band selector knob or key to store value and return to function menu Press key or hold selector knob for 1 second to store setup and exit l When password function is on you will be required to enter it after power NOTE on The password must be programmed before using this function DB 750X Ez CR Microphone Operation DOWN UP Main Sub band switch PTT MIC Numeric Keys Microphone speaker You can operate the transceiver by keypad or input desired frequency and channel through the microphone 31 SS SEND DIMF SIGNALING Hold the PTT key input the desired DTMF signaling by the numeric keys SS MAIN SUB BAND SWITCHING This transceiver is defaulted on dual receive in this status a MAIN icon will display in the top right corner of the main band frequency transmitting is only available on the main band In s
62. zl pa 5 7 Switch the selector knob to choose desired character Press the selector knob to confirm selected value and start edit for next character 8 Press key to store value and exit code editing Press key again to store setup and exit Press key or hold selector knob for 1 second to store setup and exit SS SQUELCH MODE SETUP This transceiver has five sguelch modes available to prevent reception of certain unwanted signal 1 Press key to enter function menu 2 Turn the main band selector knob to pray cm eo choose No 16 menu The LCD displays E l SGN SQL 3 Press the main band selector knob to enter function setup 4 Switch the main band selector knob to choose desired value SQ Receives when carrier is detected CTSS DCS Receives when carrier and CTCSS DCS code are detected TONE Receives when carrier optional signaling are detected CT TO Receives when carrier CTCSS II zur am ae DCS optional signaling are detected CT TO Receives when any carrier or CTCSS DCS or optional signaling is detected DB 750X 20 21 K 5 Press the main band selector knob or key to store value and return to function menu Press key or hold selector knob for one second to store setup and exit General Setting z Only when the transceiver is set with CTCSS DCS or optional NOTE DTMF 5 Tone 2 Tone signaling the values will be available SS COMPANDER Compander functi

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