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Re: K2/100 RFI problem using Astron 20A

Posted by Vic K2VCO on Dec 08, 2005; 4:57pm
URL: http://elecraft.85.s1.nabble.com/K2-100-RFI-problem-using-Astron-20A-tp384421p384432.html

Paul Webb wrote,

> I thought I may have had a RFI problem with my K2/100 that I recently bought
> but it wasn’t that.

<snip>

> But I found that my 20 amp PSU could not cope with some of the very short
> current drain that it was asked for and dropped its voltage which caused the
> k2 to reset half way through its tune cycle.

I think this is likely correct.  I used Astrons in an environment loaded
with RF (1500 watts into an inverted L a few feet away on 80/160) and
never had any problem.  However, 20 amps is marginal for a K2/100 and
the Astrons defnitely do cut out when you exceed their current ratings.

Everything else electrical in my house suffered from the RF, including
some terminating resistors in my alarm system that appeared to be
*vaporized!*.  But the Astrons did not hiccup.

--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
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