Midland Radio P-20 User's Manual
Contents
1. 0 25W 8 Ohm 10 distortion Distortion at 500 8 7 Audio frequency 001 0 400 2400 2 TRANSMITTER RF 1 nacen ree nominal 1000 mW 4 5VDC Frequency 0 00025 Harmonic more than 50 dB NV Cote 0 0 eee FM 2 5 kHz Specifications are nominal and subject to change CHANNEL FREQUENCIES 01 464 500 05 467 850 09 469 500 02 464 550 06 467 875 464 500 03 467 7625 07 467 900 10 469 550 04 467 8125 08 467 925 464 550 http www midlandradio com Page 15 of 16 Owner s Manual for the 20 Itinerant Radio SERVICE If you have a problem which you believe requires service please call first and speak with a service technician Many problems can be remedied over the phone without returning the unit for service If it ever becomes necessary to return your unit for service Pack the unit in its original box and packing Pack the original box in a suitable shipping carton Improper packing will result in damage during shipment Include a photocopy of the bill of sale showing the date of purchase Include a brief description of the problem you are having Include a DAYTIME telephone number Include a money order or Visa or Master Card credit card number for 7 50 to cover shipping and handling No personal2. B SCAN VOX Li Li 14 13 12 11 CAUTION DON T EXPOSE THE DISPLAY TO EXTREME HOT OR COLD TEMPERATURE Channel number Displays channel number 1 10 RX Symbol Indicates busy channel TX Symbol Indicates unit transmitting CTCSS Code Symbol Indicates CTCSS tone is active DCS Symbol Indicates that Digital Coded Squelch mode is on Musical note indicates ROGER BEEP is on SAVE Symbol Flashes indicating battery save is active Key Symbol indicates when the keypad has been locked Only the PTT and CALL buttons are active when this indicator is on Shows the CTCSS or DCS code you have selected When this is on other radios you talk to must be set to the same code 10 DW Symbol Indicates Dual Watch channel selection is active 11 VOX Symbol Indicates VOX is activated 12 B SCAN indicates the scan mode B is in use SCAN indicates the normal scan mode 15 in use 13 BEEP indicates the button press tone is active 14 Battery symbol shows the battery condition Replace or recharge the batteries when this indicator displays 2 or fewer segments of the battery 15 M Symbol Indicates a memory channel is active 16 Number indicates memory channel in use when programmed 5 http www midlandradio com Page 6 of 16 Owner s Manual for the P 20 Itinerant Radio FEATURES AND LOCATION OF CONTOLS 1 VOX button 2 Up Down Buttons 3 Monitor Button 4 Push to T
3. review channel programming status press V or V buttons to display each channel number The channel number followed by oN indicates an active channel A channel number followed by FF indicates an inactive frequency http www midlandradio com Page 7 of 16 Owner s Manual for the P 20 Itinerant Radio B You can have only two channels in the active mode at a time If you try to activate more than two channels the radio will beep two or three times Check and turn off any other active channels and try again 4 To change the status of a channel use the A or V buttons to select the programmed channel to be removed or added from use Press the PTT button to change the status from oN to FF Select the new active channel with the or V buttons Press the ENTER button to return to normal operation ADJUSTING THE VOLUME Rotate the ON OFF Volume control 7 clockwise to increase the volume Rotate the ON OFF Volume control counter clockwise to decrease the volume ADJUSTING THE SQUELCH Squelch is preset no adjustment is available USING THE CALL FUNCTION Press and release the CALL button 5 on the side of the radio This will cause the radio to transmit a tone to alert the other people in your group to listen for a message V Use of the call function is discouraged if using the 22 405 or the 22 540 USING THE MONITOR FUNCTION 1 Press and release the MON button 3 on the side of the radio to o
4. 8 ACTIVATING SCAN 8 9 DGS CODES nd aee recreate di 10 RESETTING THE RADIO tee rti etie ehe 11 OPERATING THE HANDS FREE VOX VOICE OPERATED TRANSMIT 11 SETTING REMOTE MONITOR MODE eene 12 SETTING MEMORY CHANNELS seen 12 ACCESSING MEMORY CHANNELS eene 12 TROUBLESHOOTING tette need eoe 13 CARE OF RECHARGEABLE NI CAD 14 TECHNICAL SPECIFICATIONS sse rennen 15 LIMITED WARRANTY aiddi 16 http www midlandradio com Page 2 of 16 Owner s Manual for the P 20 Itinerant Radio FCC Licensing Information This Midland model P20 radio operates on FM communication frequencies subject to the Rules and Regulations of the Federal Communications Commission The FCC requires that all operators using Private Land Mobile frequencies obtain a radio license before operating their equipment Application for your FCC license is made on FCC form 600 and schedules D E and G To have the forms faxed to you call the FCC Fax on Demand system at 1 202 418 0177 from your Fax machine and request document 000600 for all forms and instructions To have this form mailed to you call the FCC forms hotline at 1 800 418 3676 For questions concerning license application contact the FCC at 1 888 CALL FCC 1 88
5. 2 Press the F button repeatedly usually three times until you see LE on the display The number next to LE is the sensitivity level setting Press the V or V button repeatedly to change the VOX sensitivity Proceed to step 2 below if setting the delay is desired Press and release the ENTER button to return to the operation mode or press the F button to continue settings Setting VOX Delay The Delay is adjustable by 6 levels Level 1 is the least amount of delay 1 Refer to step one above 2 Press and release the F button until dL is on the display The numbers next to the dL is the delay setting 3 Press the or V button to change the DELAY setting 4 Press and release the ENTER button to return to operation mode Using accessories while in VOX mode Accessories for private listening are available Those with a VOX PTT switch built in can be used with the P20 in VOX mode Turn on the radio Set the radio to VOX Set the accessory switch to VOX W Key beep tones may sound very loud when using a headset or earpiece We advise turning off tones and avoid using the call feature when using accessories http www midlandradio com Page 11 of 16 Owner s Manual for the P 20 Itinerant Radio SETTING REMOTE MONITOR MODE 1 Choose a channel to be used set BOTH radios to that channel 2 With the radio to be use
6. checks please You do not need to return accessory unless they maybe directly related to the problem This information must be included before Warranty Service can be considered Failure to include these items will delay the repair of the radio until these items are received oso 60 24 LIMITED WARRANTY Midland Consumer Radio Inc will repair or replace at its option without charge any Midland GMRS transceiver which fails due to a defect in material or workmanship within ONE YEAR following the initial consumer purchase This warranty does not include any carrying cases earphones or antennas which may be a part of or included with the warranted product Performance of any obligation under this warranty may be obtained by returning the warranted product freight prepaid along with proof of purchase date to Midland Consumer Radio Inc Warranty Service Department 1120 Clay Street North Kansas City MO 64116 Warranty information may be obtained by writing Midland Consumer Radio Warranty Service Department at the above address This warranty gives you specific legal rights and you may also have other rights which vary from state to state Note The above warranty applies only to merchandise purchased in the United States of America or any of the territories or possessions thereof or from a U S Military exchange MIDLAND RADIO CORPORATION 1120 Clay Street North Kansas City MO 64116 Phone 816 241 8500 Fax 816 241 5713 E
7. hearing interference from other users and computers 2 Radios too close Radios must be at least 5 feet apart 3 Radios too far apart Obstacles interfere with transmissions Talk range is up to 4 miles in unobstructed clear areas Radio is not responding to button presses Make sure radio is not in VOX mode Make sure key lock is not on See To lock the controls Make sure radio is not transmitting Radio might need to be reset See Resetting Radio Ensure accessory microphone is set properly see Page 13 Display is dim Reposition or replace batteries Charger not functioning gt gt In Charger pin is not properly in place Check that charger is fully inserted into the jack on the bottom of the radio If using the drop in charger check the contacts on the bottom of the radio they may require cleaning If all is correct allow the batteries to charge for the specified time 2 Ensure the outlet the charger is plugged into is functioning properly 3 Check that the batteries are installed in the radio properly 4 Remove batteries from the radio and try to charge separately http www midlandradio com Page 13 of 16 Owner s Manual for the P 20 Itinerant Radio CARE OF RECHARGEABLE NI CAD BATTERIES ALWAYS DISPOSE OF BATTERIES PROPERLY Always follow the battery manufactures recommendations for Charging and disposing of Ni cad batteries The following is mean
8. mail midIndcb midlandradio com Or visit us at http www midlandradio com http www midlandradio com Page 16 of 16
9. receipt as it is required for warranty consideration http www midlandradio com Page 3 of 16 Owner s Manual for the 20 Itinerant Radio WARNING Your wireless hand held portable transceiver contains a low power transmitter When the Push to Talk PTT button is pressed it sends out radio frequency RF signals The device is authorized to operate at a duty factor not to exceed 50 In August 1996 the Federal Communications Commission FCC adopted RF exposure guidelines with safety levels for hand held wireless devices To maintain compliance with the FCC s RF exposure guidelines this transmitter and its antenna must maintain a separation distance of least 2 inches 5 centimeters from your face Speak in a normal voice with the antenna pointed up and away from the face at the required separation distance The belt clip is for storage purposes only DO NOT TRANSMIT WHILE USING THE BELT CLIP To transmit hold the device away from your body and ensure the antenna is at least 2 inches 5 centimeters from your body when transmitting A NOTE ABOUT THE CTCSS or DCS CODES This radio incorporates 38 CTCSS Continuos Tone Coded Squelch System codes and 83 DCS Digital Coded Squelch codes that when activated prevent the user from hearing other radios that do not have the same code These codes do not make your conversation private If you experience difficulties contacting or hearing other radios in your group make sure th
10. will display all segments available on the display and sound the power up tone Release the ENTER button when the radio powers up The display will show FF oN depending on the previous setting and below in smaller letters BEEP 2 Press and release repeatedly the F button usually once An icon of a musical note will be displayed above oN or FF on the display 3 Press and release the or V button to change the setting The setting oN is Roger beep on The setting FF is Roger beep off The Roger beep is the same sound as the Power Up tone Press and release the ENTER button to return to operating mode Use of roger beep is discouraged when earphones or headsets in use Ug m A http www midlandradio com Page 8 of 16 Owner s Manual for the P 20 Itinerant Radio ACTIVATING SCAN FUNCTIONS The P20 has three scan modes The most popular and most used is the BUSY channel scan This allows the radio to stop on a channel that someone is talking on When the radio stops on a Busy channel the scan will stop and resume after about 5 seconds The second is the OPEN channel scan This allows the radio to stop on the channel NOT used The third is DUAL WATCH This allows you to monitor the active channel and one of the ten available channels Busy Channel Scan 1 Press and release the F button 9 the SCAN icon will beg
11. 2 412 62 506 72 632 82 743 03 026 13 073 23 152 33 243 43 315 53 413 63 516 73 654 83 754 04 031 14 074 24 155 34 244 44 331 54 423 64 532 74 662 05 032 15 114 25 156 35 245 45 343 55 431 65 546 75 664 06 043 16 115 26 162 36 251 46 346 56 432 66 565 76 703 07 047 17 116 27 165 37 261 47 351 57 445 67 606 77 712 08 051 18 125 28 172 38 263 48 364 58 464 68 612 78 723 09 054 19 131 29 174 39 265 49 365 59 465 69 624 79 731 10 065 20 132 30 205 40 272 50 371 60 466 70 627 80 732 http www midlandradio com Page 10 of 16 Owner s Manual for the P 20 Itinerant Radio RESETTING THE RADIO If the radio stops responding to button presses or otherwise does not function properly in some cases the radio can be reset to restore normal operation To reset the radio With the radio off press and hold the F button and turn the radio on Release the F button when the radio powers up see turning the radio on B This operation will reset the radio to factory settings and will erase all memory channels that have been programmed OPERATING THE HANDS FREE VOX VOICE OPERATED TRANSMIT To get the most use from the VOX feature you must first determine what sensitivity level is needed to activate the VOX control Sensitivity is how loud you have to talk to activate the VOX circuit The VOX has 6 levels of sensitivity that can be adjusted The 1 option you can talk in a normal voice with no background noise to act
12. 8 225 5322 or go to http www fcc gov OPTIONAL ACCESSORIES FOR YOUR RADIO Accessory Name Model Number Ni cad Battery single 18 BATT Ni MH Battery single 18 NBAT Standard wall 18 396 Charger Stand for 0022 CP20 Charger Stand for 18 383 Dual Charger Stand for Ni Cad 18 385 Lapel Microphone with Ear bud 22 405 22 411 Boom Microphone Headset 22 540 Call 816 241 8500 ext 200 to order accessories or go to www midlandradio com THIS RADIO COMPLIES WITH PART 15 OF THE FCC RULES OPERATION IS SUBJECT TO THE CONDITION THAT THIS DEVICE DOES NOT CAUSE HARMFUL INTERFERENCE Your Midland model P20 UHF FM business two way radio is designed to provide you with line of sight communications for a range up to 4 miles The model P20 incorporates channels with 38 different CTCSS and 83 DCS codes to provide the best in quiet communications Also this radio offers scan power save 9 memory channels and a multifunction back lighted liquid crystal display This
13. Cad batteries as soon as possible after the indicator shows 2 segments or less of the battery lit CHARGING THE BATTERIES The CP20 charger and Ni MH batteries are usually supplied with the radio This charger is designed to recharge Ni MH batteries only Install the batteries observing their polarity If you are using rechargeable batteries and the Midland standard charger 18 396 plug the charger into a 115 volt wall socket and the charger plug into the charge jack under the cover marked CHG item 110n Page 8 illustration on the bottom of the radio or into the drop in charger Allow the batteries to charge 12 hours for Ni Cad and 24 hours for Ni MH prior to use When using a drop in charger follow the setup instructions then simply set the radio in the charger stand and observe that the LED on the charger is lit The radio should be turned off while charging Never attempt to charge any type of Alkaline battery in this radio BELT CLIP The P20 comes standard with a belt clip Attach it to the radio back by sliding the top of the clip up over the two rectangular bosses on the back of the radio until it snaps into place To detach the belt clip press the lever inside the top of the clip away from the radio body and slide the clip toward the bottom of the radio The belt clip is intended for storage of the radio only waiting for a call Do not transmit the radio while attached to your belt see warning on page 4 QUICK USE INS
14. Hz 33 210 7Hz 04 77 0 Hz 14 107 2 2 24 151 4Hz 34 218 1 Hz 05 79 7 Hz 15 110 9 Hz 25 156 7 Hz 35 225 7 Hz 06 82 5 Hz 16 114 8 Hz 26 162 2 Hz 36 233 6Hz 07 85 4 Hz 17 118 8 Hz 27 167 9Hz 37 241 8Hz 08 88 5 Hz 18 123 0 Hz 28 173 8 Hz 38 250 3 Hz 09 91 5 Hz 19 127 3Hz 29 179 9Hz 00 10 94 8 Hz 20 131 8Hz 30 186 2 Hz DCS CODES There are 83 DCS codes These are used in the same manor as the CTCSS codes To activate the DCS Codes 1 Press the F button repeatedly until the DCS icon flashes usually 4 times 2 Press the A or V button to select the DCS code you desire 3 Press the ENTER button when you have made your selection When you enter the program mode with the F button the radio will go back to operate mode after about 8 seconds if no buttons are pressed A code of 00 means no code is programmed You must do this for all the channels you want DCS codes on Turning on the DCS code will prevent you from hearing any conversation that is not using the same DCS code This does not make your conversation private mg mp my The following list contains the values of the DCS codes Different brands of radios may use different codes For operation with other brands of radios the selected DCS value must be the same 01 023 11 071 21 134 31 223 41 306 51 411 61 503 71 631 81 734 02 025 12 072 22 143 32 226 42 331 5
15. Owner s Manual for the P 20 Itinerant Radio AipLAND Owner s Manual for the P 20 Check out our accessories at www midlandradio com or click on the images b One T 2 http www midlandradio com http www midlandradio com Page 1 of 16 Owner s Manual for the 20 Itinerant Radio TABLE OF CONTENTS TIPS FOR GETTING THE MOST FROM YOUR 20 3 A NOTE ABOUT THE CTCSS DCS 22 4 CHARGING THE 5 BEET OLIP EET 5 QUICK USE INSTRUCTIONS 2 5 RANGE OF UHF 6 DISPLAY SYMBODLGS tnra iecore na er ten ce een a ei head a ex 6 FEATURES AND LOCATION OF CONTOLS 7 TURNING THE RADIO OR 7 LOCKING THE 5 nee 7 UNLOCKING THE 5 7 SELECTING THE CHANNEL 7 PROGRAMMING THE ACTIVE CHANNEL seem 7 ADJUSTING THE VOLUME 8 ADJUSTING THE SQUELCH sse 8 USING THE CALL FUNCTION essere nnne 8 USING THE MONITOR 8 TURNING ON OR OFF THE BUTTON PRESS 8 TURNING ON THE DISPLAY BACKLIGHT eee 8 TURNING THE ROGER ON OR
16. TRUCTIONS Install fresh Alkaline or fully charged Ni Cad or Ni MH batteries Turn the unit on by rotating the ON OFF Volume control clockwise The squelch is factory set and is not adjustable Make sure the radio you want to talk to does not have the CTCSS or other codes turned on To talk press and hold the PTT Push to Talk button on the side of the radio marked PTT Talk into the front of the radio about 6 inches from your mouth To listen release the PTT button B Other functions will be described later http www midlandradio com Page 5 of 16 Owner s Manual for the P 20 Itinerant Radio POWER SAVE CIRCUIT This part of the operation of the radio is completely automatic and not adjustable When the radio has not transmitted or received a signal for several seconds it will begin to cycle from a sleep mode to fully on This occurs several times a minute If a signal is received or you cause the radio to transmit the radio will become fully on This cycling from sleep to fully on increases the battery life more than 50 An icon in the upper right of the display flashing SAVE will verify this RANGE OF UHF RADIOS The best range between portable UHF radios is achieved when they are operating in open terrain outside of buildings and vehicles Anyone using a portable unit inside a vehicle will experience a significant loss of range DISPLAY SYMBOLS 1 2 4 5 7 TX CTCSS DCS TEAs 111 55
17. alk Button 5 Call Button 6 Accessory jacks 7 Volume Control 8 Enter Button 9 Function Button 10 charging contacts 11 Charge Jack THE RADIO MUST NOT BE SCANNING OR TRANSMITTING AND THE CONTOLS NOT LOCKED BEFORE THE CONTROLS WILL WORK PROPERLY TURNING THE RADIO ON OR OFF Rotate the ON OFF Volume control 7 clockwise to turn the radio ON An audible tone will indicate the radio is on The display will go through a 1 second self test and go to operation mode Rotate the ON OFF Volume control counter clockwise to turn the radio off LOCKING THE CONTROLS Press and hold the MON button 3 for about 3 seconds a beep if enabled will be heard and the KEY icon will be displayed The PTT and the CALL are the only buttons active If any other buttons are pressed 3 quick beeps will be heard UNLOCKING THE CONTROLS Press and hold the MON button 3 for about 3 seconds a beep if enabled will be heard and the KEY icon will not be displayed SELECTING THE CHANNEL Press the or button 2 to select the desired channel ONLY IF TWO CHANNELS ARE ACTIVE X if only one channel is programmed and the or V button is pressed 2 quick beeps will be heard PROGRAMMING THE ACTIVE CHANNEL 1 With the radio turned off press and hold the ENTER button and turn the radio on Release the button after the power up tone 2 Press the F button twice or until you see 1 oN or 1 FF displayed 3
18. d for the monitor off press and hold the ENTER button and turn the radio on 3 Release the ENTER button when the radio powers up 4 Press and release the F button repeatedly until bb usually 5 times is on the display 5 Press and release the or V button repeatedly to select the sensitivity level The two numbers to the right of the bb is the sensitivity This can be set from 01 to 06 A sensitivity level of 01 is the most sensitive Adjust the volume as desired Press and release the ENTER button to activate remote monitor mode The radio will enter monitor mode after 1 minute If the remote radio hears a sound the radio will send the call signal After the call is complete the remote radio will transmit for 10 seconds This allows you to hear the sound After the 10 seconds of transmit is complete the remote radio will go to receive for 10 seconds allowing you to transmit to the remote radio This cycle continues 3 times then the remote radio goes back to monitor mode B To ensure reliable communications be certain fresh batteries are used VU WARNING This monitoring is NOT intended in any way as a life saving device To exit the remote monitor mode Switch the radio off then on SETTING MEMORY CHANNELS There are 9 memory channels available To set Memory Channels 1 Press the F button repeatedly until the is displayed above the flashing memory channel numb
19. e CTCSS or DCS code is set the same on all radios If you are using the P20 where interference from other radios or electrical devices are present enabling the CTCSS or DCS codes will usually mute the interference Many times interference will be noticed by the presence of loud static from the speaker http www midlandradio com Page 4 of 16 Owner s Manual for the P 20 Itinerant Radio PREPARATION Batteries P20 radios operate with 3 AA Alkaline Ni Cad nickel cadmium or Ni MH nickel metal hydride batteries optional Ni Cad batteries provide about 15 hours of use Alkaline batteries will provide about 45 hours of use and Ni MH batteries will provide about 24 hours of use The P20 may be supplied with Ni Cad or NI MH batteries and a wall charger Ni Cad and Ni MH batteries must be charged prior to use Charge at least 10 hours with the standard charger If you are using Ni MH batteries charge at least 24 hours DO NOT attempt to charge any type of Alkaline batteries in this radio To Install Batteries Hold the radio face down Press the latch so it swings away from the cover 1 Lift the battery cover slightly Gently slide the cover off the unit 2 Insert 3 AA batteries observing the proper polarity 3 Replace the battery cover over the batteries and fasten with the latch Battery Indicator The battery Condition indicator in the display will show the amount of charge of your batteries Replace alkaline or recharge the Ni
20. er in the lower left of the display 2 Select a memory channel by pressing and releasing the or V buttons B If the channel you want to program is the displayed channel when you access the memory program mode you must change the channel and return to that channel before programming is allowed 3 Press and release the F button The first number usually will be O will flash Choose a channel by pressing and releasing the or V button The next step has three options 1 Choosing a CTCSS tone 2 Choosing a DCS tone 3 Choosing no tone at all 4 Press and release the F button The next two numbers usually will be 00 will flash as well as the CTCSS in the upper left of the display If no tone is desired go to step 5 Select a CTCSS tone desired or press and release the F button again The DCS will begin to flash select a DCS tone desired 5 Press and release the ENTER button to complete the programming The CTCSS or DCS must be flashing when you press the ENTER button to complete the programming After pressing the ENTER button the radio will go back to normal operating mode mg mg ACCESSING MEMORY CHANNELS 1 Press and release the F button repeatedly usually 6 times until the display shows a number in the lower right of the display This will be the location without the M above the number If the n
21. in flashing in the lower center of the display 2 Press and release the A or V button to activate scan The unit will now begin scanning the active channels B Pressing the PTT push to talk button will cause the radio to stop scanning and return to normal operate mode When you enter the program mode with the F button the radio will go back to operate mode after about 8 seconds if no buttons are pressed mg Open Channel Scan 1 Press and release the F button repeatedly usually twice until the B SCAN icon flashes in the lower center of the display 2 Press and release the or V button to activate scan The radio will begin to scan for the OPEN channel Scanning will stop on the open channel for about 5 seconds then move to the other channel 3 Press the PTT button to stop scanning and talk on that channel 4 To reactivate scan repeat steps above E When you enter the program mode with the F button the radio will go back to operate mode after about 8 seconds if no buttons are pressed Dual Watch Dual watch is a function that allows you to scan the current active channel and one other channel 1 Select the active channel 2 Press the F button repeatedly usually 5 times until DW is flashing in the top of the display 3 Select the second channel to be scanned About 3 seconds after your selection of the second channel is complete the rad
22. io will begin switching between the two channels When the radio hears activity on either channel scanning will stop on that channel for about 5 seconds and then resume scanning If communication is desired on the channel scanning stopped on press the PTT button This will deactivate Dual Watch and allow you to communicate normally 4 Toreactivate Dual Watch repeat steps above mg mg http www midlandradio com Page 9 of 16 Owner s Manual for the 20 Itinerant Radio ACTIVATING PRIVACY CODES To activate CTCSS codes 1 Press the F button repeatedly usually 3 times to cause the icon CTCSS to be displayed in the upper left of the display to flash 2 Press and release the or V buttons to select the CTCSS code you desire A code of 00 means no code is programmed You must do this for each of the channels you want CTCSS codes on Activating the CTCSS code will prevent you from hearing any conversation that is not using the same CTCSS code This does not make your conversation private The following is a list of frequencies of the CTCSS codes Different brands of radios may use a different number code for the frequencies For operation with other brands of radios the selected CTCSS frequency must match mo mp my 01 67 0 Hz 11 97 4 Hz 21 136 5 Hz 31 192 8 Hz 02 71 9 Hz 12 100 0 Hz 22 141 3 Hz 32 203 5Hz 03 74 4 Hz 13 103 5 Hz 23 146 2
23. ivate the VOX circuit The higher level numbers will require increasing voice level to activate the VOX circuit This is useful in noisier areas that might activate the VOX without talking The next adjustment is the delay This is a function of the VOX that keeps the radio in transmit mode after you stop talking A delay that is set to short will cause the VOX circuit to stop between some words The delay is adjustable to 6 levels Level 1 the shortest will give about one half second of delay Increasing the delay value extends the transmitter time to two seconds or more By activating the VOX you only have to talk into the front of the radio or use a headset to make the radio transmit The PTT push to talk button is not functional in VOX mode It is recommended to use a headset when using the VOX feature Choosing VOX operation Press and hold the VOX button of the radio for one second so icon appears on the display Setting VOX Sensitivity Level The sensitivity is adjustable by 6 levels Level 1 is the most sensitive To set the sensitivity level 1 With the radio turned off press and hold the ENTER button and turn the radio on The radio will display all segments available on the display and sound the power up tone Release the ENTER button after the radio powers up The display will show or on depending on the previous setting and below in smaller letters BEEP
24. pen the squelch B This allows you to over ride the squelch and the CTCSS or DCS tones This is useful to monitor the channel before you transmit to ensure there is not someone using the channel when you have CTCSS or DCS tones programmed This is also useful if you suspect someone in your group does not have the proper CTCSS or DCS tones programmed 2 Pressandrelease the button or wait 10 seconds to restore the squelch to normal TURNING ON OR OFF THE BUTTON PRESS BEEP 1 With the radio turned off press and hold the ENTER button 8 and turn the radio on The radio will display all segments available on the display and sound the power up tone Release the ENTER button when the radio powers up The display will show FF or oN depending on the previous setting and below in smaller letters BEEP 2 Press and release the or V button to change the setting 3 The setting oN is Beep on The setting FF is Beep off 4 Press and release the ENTER button to return to operating mode TURNING ON THE DISPLAY BACKLIGHT Press and release the ENTER button 8 A beep will be heard if enabled The backlight will stay on for about 5 seconds then turn off TURNING THE ROGER BEEP ON OR OFF Roger beep is a sound the radio transmits when you release the PTT button 4 With the radio turned off press and hold the ENTER button and turn the radio on The radio
25. t as general information regarding Ni cad batteries 1 Occasionally allow the batteries to fully discharge before recharging The battery indicator showing less than two segments will indicate full discharge 2 Always allow the battery to fully charge before using This requires 10 hours with the approved charger Ni MH batteries require 16 hours for full charge 3 The above will prevent the batteries from developing memory which effectively reduces their capacity 4 It is better to store Ni cad batteries that are discharged rather than charged Note Do not charge any type of alkaline batteries in this unit http www midlandradio com Page 14 of 16 Owner s Manual for the 20 Itinerant Radio TECHNICAL SPECIFICATIONS GENERAL Frequency 464 467 469 MHz 10 Modulation 50 8 Ohm 0 5W LY electronic type Power 3 Ni cads or Alkaline 3 6 4 5VDC RECEIVER Sensitivity at 12dB Sinad sss 0 35yV ili 50 Squelch eene nennen Automatic Audio output
26. umber is flashing this indicates the memory channel has not been programmed 2 Press and release the or V button to select a Memory Channel previously rogrammed To exit the Memory Channel mode press and release the ENTER button or press the F button twice mp mg oO http www midlandradio com Page 12 of 16 Owner s Manual for the P 20 Itinerant Radio TROUBLESHOOTING PROBLEM SOLUTION No Power 1 Check battery installation and or replace batteries Cannot Receive 1 Make sure the volume is set high enough Messages 2 Confirm the radios have the same channel and or CTCSS DCS code settings 3 Change your location you may be out of range 4 Install batteries properly or replace 5 Buildings obstructions operating indoors or in vehicles may interfere with communication Change your location 6 Make sure the radio is not transmitting This could be due to the radio being switched to VOX operation or accessories not set properly Range is Short 1 Operating the radio from a vehicle or from a metal building will decrease the range If possible operate outside of vehicles or buildings 2 Carrying the radio so that the antenna is very near the body will decrease the range Hold the radio in the open for the best range 3 Battery condition can affect range Replace or recharge batteries Interference Static 1 Using the CTCSS should stop you from
27. unit also incorporates VOX voice operated transmit that allows hands free use when the radio is equipped with certain accessories TIPS FOR GETTING THE MOST FROM YOUR P20 Due to the band of operation 464 467 469 MHz the P20 provides communications that are virtually free of atmospheric interference skip that is common on lower frequency bands Along with this and an antenna system that is very efficient communications range is surprisingly good Many times the limit to maximum possible range is environmental factors such as blockage caused by trees buildings hills or other obstructions If you find communication is not possible many times this can be overcome by moving only a few feet to a new location Range is greatly reduced while operating from a metal building or from a vehicle Battery condition also affects range The P20 operates on rechargeable Ni Cad batteries or alkaline batteries While this unit has been designed with gaskets for water resistance and ruggedness it is a precision piece of electronic equipment that should not be exposed to water or handled carelessly Normal care should result in years of trouble free operation Do not leave batteries installed over a long period of time as leakage may occur that can destroy the radio If you experience problems operating the radio turn off the radio press and hold the F button and turn on the radio This will cause the radio to return to the factory settings Always save your
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