Pagina 13
KB2LJJ Radio Mods Database and Manuals
03/05/2008 08.24.31
http://www.kb2ljj.com/data/yaesu/ft-817.htm
G
ood luck !
Andreas
DL6EAT
AGC modification for FT-817
Author: Andreas Duessler
Hi YL´s XYL´s and OM´s,
Regarding the AGC (RX) of the FT817 I got some questions from some users. The dynamic of the AGC-
regulation isn´t really nice researched. If you use the rig specially on 40m and/or 80m where often high
signal strenths are present, the RX sounds like the AGC is switched completely "off". If using with small
signal amplitudes it sounds much better. This seems to be a general problem of the FT817.
To fix this is only recommened for let me call it "advanced users". The rig has to be opended on the
upper side (where the loudspeaker fits). Now you remove all connected cables from the visible main
board and all srews. After this you can remove the board.
Please turn the board to the soldered side and locate C1324, which is nearest to the connected data-cable
going to the user-interface (front panel).
