Max-728 user manual
Contents
1. 9 Battery Saver 9 Low Battery Warning Monitor 9 CTCSS DCS CODES 50 CTCSS frequency codes Hz 10 104 1 DCS codes 10 TROUBLESHOOTING GUIDE 11 FREQUENCY CHART 12 ADVANCED OPERATIONS Safety Training Information 13 Electromagnetic interference Compatibility 14 PI UNPACKING AND CHECKING EQUIPMENT Carefully unpack the transceiver We recommend that you identify the items listed in the following table before discarding the packing material If any items are missing or have been damaged during shipment file a claim with the carrier immediately Supplied Accessories ITEM QUANTITY Antenna 1 Battery charger 1 1 Battery pack 1 Belt clip 1 Instruction manual 1 adaptor 2 Battery pack Belt clip Instruction manual P PREPARATION Charging the Battery Pack The battery pack 15 not charged at the factory charge it before use Initially charging the battery pack after purchase or extended storage greater than 2 months will not bring the battery pack to its normal operating capacity After repeating the charge discharge cycle two or three times the operating capa2. 263 343 431 503 627 732 031 073 145 225 265 346 432 506 631 734 032 074 152 226 266 351 445 516 632 743 036 114 155 243 271 856 446 523 645 754 048 115 156 244 274 364 452 526 654 047 116 162 245 306 365 454 532 662 051 122 165 246 311 871 455 546 664 058 125 172 251 315 411 462 565 703 054 131 174 252 325 412 464 606 712 P11 TROUBLESHOOTING GUIDE PROBLEM SOLUTION The battery pack may be dead Recharge or replace the battery pack No power The battery pack may not be installed correctly Remove the battery pack and install it again The battery pack life is finished Replace the battery pack with a new one Battery power dies shortly after charging Make sure you are using the same Cannot talk to nor hear frequency and Quiet Talk tone as the other members in your other members in your group group Other group members may be too far away Make sure you are within range of the other transceivers Other voices besides Change the Quiet Talk tone group members are Be sure to change the tone on all present on the channel transceivers in your group P12 FREQUENCY CHART Model Name Serial Number Channel Transmit Frequency Receive CTCSS DCS P13 ADVANCED OPERATIONS Safety Training Information WARNING Your radio generates RF electromagnetic energy whi
3. Installing the Cover over the Speaker Microphone Jacks If you are not using a speaker microphone install the cover over the speaker microphone jacks using the supplied screw Note To keep the transceiver water resistant you must cover the speaker microphone jacks with the supplied cover Installing the Speaker Microphone If you are not using a speaker microphone install the cover over the speaker microphone jacks Note To keep the transceiver water resistant you must cover the speaker microphone jacks with the supplied cover Speaker Ridi ii di 7 GETTING ACQUAINTED Channel selector Rotate to select channels 1 16 Antenna Power switch volume control Turn clockwise to switch ON the transceiver To switch OFF the transceiver turn counterc lockwise until a click sounds Rotate to adjust the volume level Microphone LED indicator Lights red while transmitting Lights green while receiving a signal Flashes red when the battery voltage is low while transmitting Speaker PTT Push To Talk switch Press then speak into the microphone to call a station Release to receive Side button 2 Side button 3 Speaker Microphone jacks Battery pack Notices Side button 2 and side button 3 can be programmable by PC software to these functions Monitor Squencl on off Scan on off Scan temperary delete High Low power Talk about Rev
4. solutions Max 728 VHF UHF Transcelver User Manual PRECAUTIONS Refer service to qualified technicians only Do not operate the transceiver nor charge a battery pack in an explosive atmosphere gases dust fumes etc Turn OFF the transceiver while taking on fuel or while parked in a gasoline service station Do not modify nor attempt to adjust this transceiver for any reason Do not expose the transceiver to long periods of direct sunlight nor place it close to heating appliances Do not place the transceiver in excessively dusty humid and or wet areas nor on unstable surfaces SAFETY It is important that the operator be aware of and underst and hazards common to the operation of any transceiver CONTENTS UNPACKING AND CHECKING EQUIPMENT Supplied AccessorieS 1 PREPARATION Charging the Battery Pack 2 3 Installing Removing the Battery Pack 4 Installing the Antenna 5 Installing the Belt Clip 5 Installing the Cover over the Speaker Microphone Jacks 6 Installing the Speaker Microphone 6 GETTING ACQUAINTED 7 OPERATION 9 AUXILIARY FUNCTIONS Time out Timer
5. Saver function decreases the amount of power used when a signal is not being received and no operations are being performed no keys nor switches are being pressed While the channel 15 not busy and no operation is performed for 10 seconds Battery Saver turns ON When a signal is received an operation is performed Battery Saver turns OFF Low Battery Warning Low Battery Warning alerts you when the battery needs to be recharged While transmitting if the battery power goes below a predetermined value the LED will blink red When a tone sounds the transceiver stops transmitting Replace or recharge the battery pack Monitor When no signals are present the squelch on the transceiver automatic ally mutes the speaker so you will not hear background noise To manually deactivate the squelch press and hold the Monitor key This is useful when you want to adjust the volume level or when you need to hear a weak signal The LED indicator lights green while the Monitor key is pressed 10 CTCSS DCS CODES 50 CTCSS frequency codes Hz 69 3 88 5 110 9 141 3 1679 189 9 2181 71 9 91 5 114 8 146 2 171 3 1928 2257 74 4 94 8 118 8 151 4 173 8 196 6 2291 7770 97 4 1230 1587 1773 1995 2336 797 1000 1273 1598 1799 2035 2418 825 1035 1318 162 2 189 5 2065 2503 104 1 DCS codes 023 065 132 205 255 831 413 465 612 723 025 071 134 212 261 332 423 466 624 731 026 072 143 223
6. interference with other devices or systems To avoid such interf erence turn off the radio in areas where signs are posted to do so DO NOT operate the transmitter in areas that are sensitive to electrom agnetic radiation such as hospitals aircraft and blasting sites WARRANTY CARD Model Number Serial Number Purchase Date Dealer _ User s Name Telephone Address Remarks 1 This warranty card to be filled in by purchaser 2 One year warranty 3 The user can get service in the following ways a Go back to the shop where you purchased the equipment b Our local service centers We hope your Max 728 Transceivers will provide years of trouble free operation The Maximon Team far OAs Ss S625 1
7. city will increase to normal CAUTION DO NOT RECHARGE THE BATTERY PACK IF IT IS ALREADY FULLY CHARGED DOING SO MAY CAUSE THE LIFE OF THE BATTERY PACK TO SHORTEN OR THE BATTERY PACK MAY BE DAMAGED AFTER RECHARGING THE BATTERY PACK DISCONNECT IT FROM THE CHARGER CHARGING THE BATTERY PACK FOR MORE THAN 5 DAYS MAY REDUCE THE BATTERY PACK LIFE Note The ambient temperature should be between 41 and 104 F 5 and 40 while charging is in progress Charging outside this range may not fully charge the battery Always switch OFF the transceiver equipped with a battery pack before charging Using the transceiver while charging its battery pack will interfere with correct charging The battery pack life is over when its operating time decreases even though it is fully and correctly charged Replace the battery pack P3 Plug the AC adaptor cable into the adaptor Jack located on the rear of the charger Plug the AC adaptor into an AC outlet Slide the battery pack or transceiver with a battery pack into the charger Make sure the battery pack contacts are in contact with the charging terminals The charger LED lights and charging begins ee e After charging the supplied battery pack for 4 hours remove it or the transceiver equipped with it from the charger The charger turn to green automatically after charging 1s completed Unplug the AC adaptor from the AC outlet 4 Installing Removing the Bat
8. erse frequency VOX on off Scrambler on off Above functions can be programmable through short press or long press at side button 2 and side button 3 Those functions can be programmable through PC softare Tx total time s Squelch Voice annunciation VOX gain level Band width Tx power rank Beep scrambler P8 OPERATION Switch ON the transceiver by turning the Power switch Volume control clockwise A beep sounds Adjust the volume by pressing and holding the Monitor key then rotating the Power switch Volume control Rotate the Channel selector to select your desired channel When you receive an appropriate signal you will hear audio from the speaker To make a call press and hold the PTT switch then speak into the microphone using your normal speaking voice Hold the microphone approximately 1 5 inches 3 to 4 cm from your lips Release the PTT switch to receive Note When the battery pack voltage becomes too low transmisson will stop and the LED will blink red See Low Battery Warning on page 9 P9 AUXILIARY FUNCTIONS Time out Timer The purpose of the Time out Timer 18 to prevent any single person from using a channel for an extended period of time If you continuously transmit for 300 seconds the transceiver will stop transmitting and a tone will sound To stop the tone release the PTT switch You can press the PTT switch again to resume transmitting Battery Saver The Battery
9. le in transmit mode This radio 1s designed for and classified as Occupationa Use Only meaning it must be used only by individuals aware of the hazards and the ways to minimize such hazards This radio 1s NOT intended for use by the General Population Caution To ensure that your exposure to RF electromagnetic energy 1s within the allowable limits for occupational use always adhere to the following guidelines DO NOT operate the radio without a proper antenna attached as this may damage the radio and may also cause you to exceed RF exposure limits A proper antenna is the antenna supplied with this radio by the manufacturer or an antenna specifically authorized by the manufacturer for use with this radio DO NOT transmit for more than 50 of total radio use time 50 duty cycle Transmitting more than 50 of the time can cause RF exposure compliance requirements to be exceeded The radio 16 transmitting whe the TX indicator lights red You transmit by pressing the PTT switch ALWAYS use authorized accessories antennas batteries belt clips speaker mics etc Use of unauthorized accessories can cause the RF exposure compliance requirements to be exceeded ALWAYS keep the antenna at least 2 5cm 1 inch away from the body when transmitting and use only the provided clips when attaching the radio P14 Electromagnetic interference Compatibility During transmissions your radio generates RF energy that can possibly cause
10. tery Pack The average of the supplied battery pack 18 12 hours Average times are calculated using 5 transmit time 5 receive time and 90 standby time CAUTION DO NOT TAMPER WITH THE BATTERY TERMINALS NOR DISPOSE OF THE BATTERY BY FIRE NEVER ATTEMPT TO REMOVE THE CASING FROM THE BATTERY PACK To remove the battery pack pull back on the release latch and slide the pack away from the transceiver Slide the battery pack along the back of the transceiver Match the bottom of the battery pack with the corresponding grooves on the back of the transceiver PS Installing the Antenna Screw the antenna into the connector on the top of the transceiver by holding the antenna at its base and turning it clockw ise until secure Note The antenna 1s neither a handle a key ring retainer nor a speaker microphone attachment point Using the antenna in these ways may damage the antenna and degrade your transceiver s performance Antenna e Installing the Belt Clip If necessary buckle the belt clip to the back of the battery pack Note Make sure the battery pack contacts are in contact with the charging terminals The charger LED lights and charging begins Belt clip CAUTION DO NOT USE GLUE WHICH IS DESIGNED TO PREVENT SCREW LOOSENING WHEN INSTALLING THE BELT CLIP AS IT MAY CAUSE DAMAGE TO THE TRANSCEIVER ACRYLIC ESTER WHICH IS CONTAINED IN THESE GLUES MAY CRACK THE TRANSCEIVER S BACK PANEL P6
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