Question about Yaesu NABC NABC LMR NICD BATTERY FNB-V47 EQUIV. (NANBV47) 2-Way Radio

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Yaesu ft 50r

I enter the VFO duplex modes on the proper frequencies in my area. I push the PTT and the unit keys quickly, beeps and ends the PTT by itself resulting in no transmission.
The unit eats batteries like candy so I have it plugged into the wall adapter because it wont stay powered up if I disconnect it. The battery installed is nickle hydride battery MH-FNB-41 battery pack DC 9.6V 1050mAh. Any solutions fellas?

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The FT-50R is an extended receive, but dual band (UHF & VHF) amateur transceiver. It is capable of transmitting between approximately 144Mhz - 148Mhz VHF and 430Mhz - 450Mhz UHF.

Typically, the radio will provide an audible warning whenever attempting to operate outside of its intended range(s). The manual has a section on maximizing battery life, and can be downloaded below:

http://www.radioamateur.eu/schemi/FT50_user.pdf

Posted on Sep 21, 2009

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I also tried "repair kits" for these buttons which are supposed to replace the conductive surface. Both times, they failed again within a couple of weeks.

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Good luck, and 73

DE NøAWN

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scotwho, I personally do not know the radio you are asking about, but I do have many years working with radios in troubleshooting. What I am guessing is, if the heatsink gets hot, then whatever is connected to the heatsink has shorted out. Two main parts come to mind here, and that's the audio chip, and the transmitter output final/chip. Possibly the main IC (brain) that controls most everything, but I doubt that. The radio needs to go to a repair shop that can troubleshoot the damage/ and find an answer as to why it occurred. A lot of times the factory's do not use heatsink compound when they assemble the units, and after an x amount of time the part/parts will fail. 10cents worth of heatsink compound can make a radio last a few years longer.
Probably not the answer you wanted but I hope this helps,, let us know. Mechanic

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