K3 Key Out Problem

classic Classic list List threaded Threaded
2 messages Options
Reply | Threaded
Open this post in threaded view
|

K3 Key Out Problem

Gerry Villhauer
I have had my K3 for a couple years now. Had a Flex 5000 prior. Love the K3 but discovered a problem.  I recently got a receiving loop antenna an connected the keyoutput from the K3 to shut the power off to the loop when transmitting.  On SSB in works fine when the mic is keyed. When operating CW it does not give an output to shutdown the power. Any help appreciated.
Gerry, W0GV

______________________________________________________________
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]
Reply | Threaded
Open this post in threaded view
|

Re: K3 Key Out Problem

Don Wilhelm
Gerry,

What are you using to measure the KEYOUT line?  In CW, it will follow
the QSK keying. so it will be a series of fast pulses.  If you are
trying to measure with an ohmmeter (or voltmeter), it may not respond
fast enough to see it on the meter.
The fact that it works when you key the microphone indicates that it is
working.

Whether your RX antenna is fast enough to follow the K3 keying is quite
another matter - if it uses a relay, it may not be fast enough.

There are K3 menu parameters that will change the Delay time, see the TX
DLY menu listing for details.

73,
Don W3FPR

On 9/6/2016 11:05 AM, Gerry Villhauer wrote:
> I have had my K3 for a couple years now. Had a Flex 5000 prior. Love the K3 but discovered a problem.  I recently got a receiving loop antenna an connected the keyoutput from the K3 to shut the power off to the loop when transmitting.  On SSB in works fine when the mic is keyed. When operating CW it does not give an output to shutdown the power. Any help appreciated.
> Gerry, W0GV
>

______________________________________________________________
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]