[Elecraft] Transmitter Alignment

[Mike K8CN]

Which parts of the alignment do you wish to do with a scope?  I found it
useful only for the final alignment of the LC filters in transmit mode
because I don't have a sensitive QRP-level wattmeter.  I used a modest old
scope (Tek 2215) with a 10X probe, a BNC tee, and a good dummy load (Bird
TermaLine).  The rest of the alignment can be done adequately with just a
DMM and the prescribed methods of the K2 manual, but filter alignment and
BFO settings can be improved upon by using Spectrogram or any other audio
spectrum analysis tool - there are lots of postings on this issue in the
forum archives.  I ran my K2 very happily for 4 years after using only the
K2 manual's procedures for alignment, then re-did them last summer with
Spectrogram. I can't claim any dramatic performance improvements except that
I could see where the filter passbands were actually located.

73,
Mike, K8CN

--
View this message in context: http://elecraft.365791.n2.nabble.com/Transmitter-Alignment-tp7406224p7407085.html
Sent from the Elecraft mailing list archive at Nabble.com.