Yaesu FT-847 (FT 847 FT847) transceivers: Extending the transmit range

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Transceivers
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Yaesu FT-847 (FT 847 FT847)

FT-847

Programming interface schematics for Yaesu: programming interface, Yaesu 4 pin plug
Programming software for Yaesu FT-847 (FT 847 FT847) :
PDF User Manual for Yaesu FT847 (FT-847 FT847) : Yaesu FT-847 Operating Manual
PDF Service Manual with schematics for Yaesu FT-847 (FT 847 FT847) :
Diagrams for Yaesu FT-847 (FT 847 FT847) : Yaesu FT-847 BMP schematics

Mods for Yaesu FT-847 (FT 847 FT847) :
   Yaesu FT-847 (FT 847 FT847) Thermostatic Fan Speed Controller
   Yaesu FT-847 (FT 847 FT847) Separate receive connectors for 432 and 144MHz
   Yaesu FT-847 (FT 847 FT847) Other Mods performed
   Yaesu FT-847 (FT 847 FT847) volume control mod
   Yaesu FT-847 (FT 847 FT847) Fixing the drift
   Yaesu FT-847 (FT 847 FT847) Modification sheet for FT-847 by DG2IAQ
   Yaesu FT-847 (FT 847 FT847) Chattering Relay Fix
   Yaesu FT-847 (FT 847 FT847) Power Switch
   Yaesu FT-847 (FT 847 FT847) burned power switch contacts - repair in 10 minutes, no cost
   Yaesu FT-847 (FT 847 FT847) Simple Roger beep
   Yaesu FT-847 (FT 847 FT847) Easier audio level fix
   Yaesu FT-847 (FT 847 FT847) Throttling Back Audio Output Level, Rev. 1
   Yaesu FT-847 (FT 847 FT847) Sensitivity settings
   Yaesu FT-847 (FT 847 FT847) External RX Input Modifcation
   Yaesu FT-847 (FT 847 FT847) SSTV interface width PTT keying
   Yaesu FT-847 (FT 847 FT847) How to modify FT-847 with full TX-RANGE on HF
   Yaesu FT-847 (FT 847 FT847) Extending the transmit range
   Yaesu FT-847 (FT 847 FT847) Enter the Alignment Menu
   Yaesu FT-847 (FT 847 FT847) Help with a noisy fan
   Yaesu FT-847 (FT 847 FT847) Throttling back the audio output level
   Yaesu FT-847 (FT 847 FT847) TX coverage continues on 137MHz to 174MHz and 410MHz to 470MHz
   Yaesu FT-847 (FT 847 FT847) antenna tuner mod, for wider range

Yaesu FT847 (FT-847 FT847) technical specifications : Yaesu FT-847 (FT 847 FT847) technical specifications

Yaesu FT-847 (FT 847 FT847) Extending the transmit range

Remove bottom cover..
near battery there are 6 solder pads numbered 1 thru 6....
pad 1 is already shorted with a chip resistor.....
short pads 2 and 3 with solder...
check pad 6 and if it has a chip resistor on it ...
remove it...
this one has to be removed to go out of band on hf and 6m.....
replace cover and turn on radio while holding in the lock and fast buttons....
this resets micro and you will also lose all your memories that you have entered...
you will have to reprogram these....
TX coverage will be 1.8-76mhz with no gaps...
DO NOT TX BETWEEN 30-36MHZ -- not only is it illegal, but you may damage the HF PA.

More Yaesu Radioamateur Transceivers

Yaesu VHF/UHF Handhelds:
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Yaesu VHF/UHF Mobile Transceivers:
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    Yaesu FT-2600M (FT 2600 M FT2600M) service manual and specs
    Yaesu FT-2700R (FT 2700 R FT2700R) service manual and specs
    Yaesu FT-2700RH (FT 2700 RH FT2700RH) service manual and specs
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    Yaesu FT-3700 (FT 3700 FT3700) service manual and specs
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Yaesu Base VHF/UHF:
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Yaesu HF and More Transceivers:
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