[Yaesu] FT-747GX Freq Jumping

Tue May 27 02:48:54 EDT 2003

Hi Tom,

The problem in my 747gx "seems" to be solved, thanks to the help of
Guillermo LU8EYW.

My radio has not a tcxo. The problem was LOTS of dirty in the carrier
oscilator trimmers.
I don't know if it is exactly the same problem as in your radio, but
you may hear that the white-noise sound, without signal, vary from a
low, deep to a high-pitched one.

73, fede.
--
LU4HKN.

On Mon, 26 May 2003 17:19:06 -0400
"Thomas Giella" <kn4lf at tampabay.rr.com> wrote:

> Hey Fred,
>   My FT-747GX is also jumping frequency in transmit and receive. It jumps approximately 500 hz. I presume that it might be a problem with the txco-4?! Do you run a linear amplifier? I can't seem to get my FT-747GX to key up my Amp Supply LA-1000A.