Pete - found the problem with the weird S-meter movement on the
FRG-7. It was due to excessive voltage on the 9.5V rail (11.2V). The
zener for the pass transistor regulator was way out of tolerance. I
replaced it with a 10V zener, re-calibrated the S-meter and it reads
like a normal meter now.

Frank
K3YAZ


On Dec 12, 2:46 am, "Pete KE9OA" wrote:
I didn't change the function of mine. Is your responding too slowly or too
quickly? On another note, that MW attenuator can be bypassed by rerouting
the RF path of the MW input filter to the 50 Ohm input. This eliminates the
1k resistor and the other components that are in the series string. There is
a Yaesu users group on Yahoo. They do mention that S-Meter mod, and they do
have documentation for this mod. You can also find the schematic and the
owner's manual on this site. The nice thing about this schematic is that it
is a complete scan, instead of the partial multiple scans.

Pete

" wrote in message

...

Pete - I'm pretty sure you have an FRG-7. If so what circuit mod have
you done to fix the horrible S-meter circuit action?

Thanks,

Frank
K3YAZ
Tucson (where it has been raining for 5 days!)