Elecraft

KX2 preamp

Classic

List

Threaded

3 messages Options

Dan Presley

KX2 preamp

I was out this weekend doing the Bumblebee QRP contest (lousy conditions here in PNW!) and a couple of times I noticed that the preamp switched itself off. First time I thought I bumped the switch but it actually did it 2 more times. I was running 5W cw to a magloop carefully tuned to resonance as best I could tell. I’ve used this same setup a bunch and never had that happen before-any thoughts? Thanks.
Dan Presley N7CQR
[hidden email]

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

Randy Foltz-2

Re: KX2 preamp

Interesting Dan, I had a similar experience both with the KX2 and the
lousy conditions here in eastern PNW (northern ID). I was sending CQs
with the MSG key then the "1" key. Once the radio got real quiet and I
saw that the preamp was off. I think what happened was that the MSG key
did not get pressed, although I thought I had done so, then when I
pressed the "1" key, it was really the PRE key. That turned the preamp
off. At least that is what I think happened.

Also thanks for the Q. I didn't get very many of them so each was
particularly memorable.

Randy, K7TQ
Moscow, ID

On 07/31/2017 11:16 AM, Dan Presley wrote:

> I was out this weekend doing the Bumblebee QRP contest (lousy conditions here in PNW!) and a couple of times I noticed that the preamp switched itself off. First time I thought I bumped the switch but it actually did it 2 more times. I was running 5W cw to a magloop carefully tuned to resonance as best I could tell. I’ve used this same setup a bunch and never had that happen before-any thoughts? Thanks.
> Dan Presley N7CQR
> [hidden email]
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

KENT TRIMBLE

Re: KX2 preamp

In reply to this post by Dan Presley

Dan . . .

Were you running a pre-recorded message on button 1 (the PRE button)?

If you forgot to tap the MSG button first before you tapped button 1,
then the PRE function would be operative, not the message-play function.

Have done it myself.

73,

Kent K9ZTV

On 7/31/2017 1:16 PM, Dan Presley wrote:

> I was out this weekend doing the Bumblebee QRP contest (lousy conditions here in PNW!) and a couple of times I noticed that the preamp switched itself off. First time I thought I bumped the switch but it actually did it 2 more times. I was running 5W cw to a magloop carefully tuned to resonance as best I could tell. I’ve used this same setup a bunch and never had that happen before-any thoughts? Thanks.
> Dan Presley N7CQR
> [hidden email]
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home:http://mailman.qth.net/mailman/listinfo/elecraft
> Help:http://mailman.qth.net/mmfaq.htm
> Post:mailto:[hidden email]
>
> This list hosted by:http://www.qsl.net
> Please help support this email list:http://www.qsl.net/donate.html
> Message delivered [hidden email]
>
> ---
> This email has been checked for viruses by AVG.
> http://www.avg.com