[Elecraft] Re: K3 RX performance (tantalizing preview)

Vic K2VCO vic at rakefet.com
Sat Jul 14 10:36:37 EDT 2007


Bill Coleman wrote:

> At NQ4I, with antenna separation of just a few dozen meters, we can 
> often receive effectively within 10 kHz of the primary station.

How do you do this? This field day, I found that having a station on SSB 
in the same band with me when I was on CW was really problematic. 
Antennas were oriented for minimal coupling and power was 100 watts.

Rigs in this case were various Kenwoods, but I've also experienced this 
with other Japanese radios. The problem seems to be transmitted wideband 
phase noise that starts when the ptt is closed (the actual SSB signal 
does not seem to be a problem). We do have bp filters, but of course 
they don't help on the same band.

We haven't had K2's at FD (I am the only one who has one). What kind of 
rigs are in use at NQ4I?
-- 
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco


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