[Elecraft] K2 Preamp on and huge key clicks. Normal?

[Andreas (KU7T)]

Eric,

Yes I believe my NB was on. I will try this out next time I encounter this
again.


Thanks for all the ideas I received.
Thanks and 73,
Andy, KU7T




-----Original Message-----
From: Eric Swartz WA6HHQ - Elecraft [mailto:eric at elecraft.com] 
Sent: Thursday, June 03, 2004 9:52 AM
To: Andreas (KU7T)
Cc: elecraft at mailman.qth.net
Subject: Re: [Elecraft] K2 Preamp on and huge key clicks. Normal?

Hi Andy,

Was your noise blanker ON?  If so, the additional gain from the pre-amp
could 
increase the NB's tendency to cause strong signal IMD. This is true of all 
noise blankers.

73, Eric  WA6HHQ


Andreas (KU7T) wrote:

> I sometimes noticed that issue before, mostly when I was mobile operating.
> But this time, I hardly could do any contest exchange without retries.
> Without thinking, I turned of the Preamp and the clicks where gone.  I
> usually work with Preamp on, especially on 20, since I just use low wire
> antennas.

> 
> Is this normal behavior of the Preamp?  If so, can someone explain to me
why
> this is the case?  Is the RX overloaded?  If this is not normal, where
> should I start troubleshooting?