The cold start 500 hz drift is within rated specs for that rig. An optional and
more stable TCXO master reference oscillator would probably help allot. I think
the FT-747GX uses the TCXO-4, same as the FT-840.
73,
Thomas F. Giella, KN4LF
Plant City, FL, USA
Grid Square EL87WX
Lat & Long 27 58 31 44N 82 09 51 98W
PODXS 070 PSK31 Club Member #349
KN4LF Solar Space Weather & Geomagnetic Data Archive:
http://www.kn4lf.com/kn4lf5.htm
KN4LF Daily HF/MF Radio Propagation Outlook: http://www.kn4lf.com/kn4lf6.htm
KN4LF HF/MF Radio Propagation Theory Notes: http://www.kn4lf.com/kn4lf8.htm
KN4LF Amateur & SWL Radio History: http://www.kn4lf.com
----- Original Message -----
From: Doug Walker
To: yaesu@contesting.com
Sent: Monday, July 26, 2004 11:02 PM
Subject: [Yaesu] FT-747/SB-1400 drift
I have a Heath SB-1400 (repackaged FT-747) that drifts around 500 cycles
before settling down. Any suggestions. Once it settles down, it performs pretty
good, and I have left it powered up 24/7 as a means of combating the problem,
but I got the radio to use mobile, so I need to get it stable before putting it
in my car. Any suggestions? They would be greatly appreciated.
Doug N5LIP
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