Garey Barrell <[EMAIL PROTECTED]> made an utterance to the drakelist gang
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These adjustments affect the RECEIVE filter alignment only. NOT the
transmit filter alignment.
The Carrier Oscillator frequency is probably off, which is primarily
dependent upon the 13.695 MHz VCXO. The only safe answer is a complete
realignment, starting with setting the 10V bus adjustment. The
alignment is fully described in the Service Manual, and is not
difficult, but MUST be done correctly and in the proper order to get it
right.
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 4-B, C-Line & TR-4/C Service Supplement CDs
<www.k4oah.com>
Jim Shorney wrote:
"Jim Shorney" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
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On Sun, 6 Jul 2008 14:40:10 +0100, John Stringer wrote:
"John Stringer" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
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I bought a TR7A on ebay recently and it really is in great condition and
works fine except for one BIG problem.I am told that the transmit audio is
muddy,distorted,does not seem properly positioned in passband,has a trace of
carrier etc. Any ideas about how I should start tackling this problem? John
GI3KDR
John,
Start here:
http://www.zerobeat.net/drakelist/passband.html
73
-Jim
NU0C
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