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Certificate handheld digital two way radios BF-TD500 DMR Hight Power Repeater/Base Station for VHF/UHF BF-RT7500

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  • BelFone Products FAQ

    ·        1.Portable Radio: Transceiver with display when programming by keypad, due to wrong operation causes all data cleared, how to reset to defaults?

    Solution: Reprogramming the transceiver by suitable software, or you may do it by manual programming via the keypad.

    Preventive treatment: when in manual programming, please refer to the user's manual and follow the correct steps.

    ·        2.Portable Radio: Transceiver with display in manual programming, how to adjust the step frequency?

    The solution: Choose frequency display mode, press the F key,then # key,steps with 5KHz \ 6.25 KHz \ 10KHz \ 12.5KHz \ 25 KHz \ 100KHz., press again the F key to confirm.

    Preventive treatment: Please follow the instruction on the user's manual.

    ·        3.Portable Radio: how to set up non-standard subsonic?

    Solution: Write the frequency of software AH367 \ AH600, AH610 models can directly enter the non-standard subsonic non-standard settings.

    Preventive treatment: Try to use standard subsonic, because of the non-standard subsonic frequency in the different layers of the degree of each string is excluded in the selection criteria.

    ·        4.Portable Radio: LED indicator and a long red light, but can transmit how to solve?

    Solution: PTT key bad or stuck, launch headphone bad head or water short-circuited.

    Preventive treatment: to avoid the relatively harsh environment for a long time to use the equipment.

    ·        5.Portable Radio: LED lights, red, green light flashes alternately fault?

    Solution: the battery is connected to the intercom for low pressure, high pressure or loss of lock, the indicator flashes and an alarm tone.

    Preventive treatment: Please refer to the instructions distinguish between the faulty equipment is what kind of alarm, the alarm sound speed, length, and then maintenance analysis.

    ·        6.Portable Radio: Individual battery life than the short why is this?

    Resolution: The routine use of battery life general shelf life of 2-3 years, the improper operation of the battery charge will allow the battery is easy to damage.

    Prophylactic treatment: Charge the battery life of mating cycles generally 300 times the battery capacity is reduced to 80% and will continue to slowly decline.

    ·        7.Portable Radio: 350 series battery (lithium battery) put a long time, charge for some time still can not use how to do?

    Solution: 3.6V supply voltage charging activated, then the Chargers 4-5 hours.

    Preventive treatment: place for too long a battery will slowly discharge to low voltage, this time charging is beyond the range of load capacity of the charger and battery protection circuit board, you must first be activated.

    ·        8.Portable Radio: 620 and other double lithium battery place for a long time, charging that still can not be used for some time how to do?

    Resolution: 7.2V supply voltage activation, with charger, 1-2 hours more than usual.

    Preventive treatment: place for too long a battery will slowly discharge to low voltage, this time charging is beyond the range of load capacity of the charger and battery protection circuit board, you must first be activated.

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