[Elecraft] NG0R - K2 Build/Alignment Issue
John Hoaglun
john at hoaglun.com
Thu Dec 4 16:12:59 EST 2008
Hello,
I am working on the receiver and transmitter alignment at the end of the
build process. I used a signal generator to peak up all of the band pass
filters and they works as expected. When I try to check the transmit
alignment I am not getting to the proper power output. Even peaked up for
max smoke I am not getting the proper power out.
3.750mhz 2.5w Hi Cur
7.100mhz 6.1w Hi Cur
10.100mhz 0.3w Hi Cur
14.100mhz 0.3w Hi Cur
18.100mhz 9.5w
21.100mhz 4.1w
24.900mhz 0.5w
28.200mhz 6.0w
All of these were tested with a external wattmeter & the internal meter. I
also validated that dummy load not the issue by testing this using a triband
antenna on 20m and the measurements matched.
Do you have any suggests on some places to look?
It is possible that it could be an issue with the low pass filters but I
find it hard to believe that I messed up all five filters. You would think
that at least one of them would be ok. :-)
Thoughts?
Please respond direct as well as to the list... I get the digest version so
it could be a while before I see next digest email.
Thanks, JH
-----------------------------
John Hoaglun
NG0R - EN25
http://www.hoaglun.com
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