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Modifications for the Yaesu FT-847 - Radio mods
http://radiomods.co.nz/yaesu/yaesuft847.html
Modifications for the Yaesu FT-847. 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 …
FT-847 Mods - Frenning
http://www.frenning.dk/OZ1PIF_HOMEPAGE/FT-847_Mods.htm
FT-847 Modifications: Separate receive connectors for 432 and 144MHz: In many instances using a separate receive antenna connection is an advantage, e.g. high power and pre-amp usage, squezing every last dB of NF out …
Modifications for the Yaesu FT-847 Note: If you only wish ...
https://dg2jm.de/downloads/mod_ft847.pdf
Modifications for the Yaesu FT-847 Note: If you only wish to extend the RX and not the TX of the radio have a look at the resistor configuration at position number J4 in your radio (This is shown open in the photo below). if J4 it's fitted remove it. This will open the RX to allow the radio to receive outside the normal amateur bands.
Yaesu FT-847 (FT 847 FT847) transceivers: volume control mod
http://www.hampedia.net/yaesu/ft-847-volume-control-mod.php
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
DG2IAQ Modification Sheet YAESU FT-847 - SuperControl
https://www.supercontrol.de/cat/ft847faq/modsheet847.pdf
get a wider range of operation distance to the microphone front without loosing the audio level immediately. But by removing the resistor the low/high tonecontrol effect has gone too cause of the higher mic input impedance of the FT-847 mic amplifier. To fix this replace the original 0.033mF with a smaller value, e.g. 22nF (0.022mF). Maybe
mods.dk - Articles for Yaesu 'FT-847'
https://www.mods.dk/index.php?ModelId=65
FT-847/ FC-20 antenna tuner mod, for wider range: 03 Aug 2004: FT-847 volume control mod: 22 Jul 2004: FT-847 Fixing the drift: 19 Jun 2003: Modification sheet for FT-847 by DG2IAQ: 11 Jun 2003: Chattering Relay Fix for FT-847: 02 Feb 2003: FT-847 Power Switch: 13 Sep 2001: FT-847 burned power switch contacts - repair in 10 minutes, no cost. 05 Jun 2001
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