Thanks, Frank - I knew there was some way to do it, just didn't know what.
73, Pete N4ZR
Check out the Reverse Beacon Network
at <http://reversebeacon.net>, now
spotting RTTY activity worldwide.
For spots, please use your favorite
"retail" DX cluster.
On 11/7/2019 11:53 AM, donov...@starpower.net wrote:
Hi Pete,
If the open circuit (unkeyed) voltage*/is the same polarity/* for both
devices,
you can connect a diode in series with each keying line. Then connect
both diodes to the KEY OUT (not PTT !) jack.
The voltages */do not need to be identical/*, just the polarity
73
Frank
W3LPL
------------------------------------------------------------------------
*From: *"N4ZR" <n...@comcast.net>
*To: *elecraft@mailman.qth.net
*Sent: *Thursday, November 7, 2019 4:44:41 PM
*Subject: *[Elecraft] Adding PTT Out Switching to a K3
I need to be able to disconnect the antenna to my SDRs when
transmitting. This used to be easy but now my PTT Out jack is committed
to the KPA-1500. I'm looking for suggestions of how best to accomplish
this - I don't believe sequencing is required, just a second PTT output.
Ideas?
73, Pete N4ZR
Check out the Reverse Beacon Network
at <http://reversebeacon.net>, now
spotting RTTY activity worldwide.
For spots, please use your favorite
"retail" DX cluster.
On 11/7/2019 9:30 AM, Ray Albers wrote:
> ….thanks to comments and suggestions from K9ZTV and W2CS.
>
> My K3 has the Sub Receiver installed, and I have been playing around
with
> diversity reception, using a random wire connected to the sub-receiver
> antenna input BNC connector. Apparently the carrier operated relay that
> protects the receiver from overload is being triggered by lots of RF
coming
> into that random wire. When I disconnect the receive antenna, no more
> clicking. Now that I know what it is, I'll just ignore it. Or maybe
someday
> I'll rig a manual T-R switch arrangement to disconnect the sub receiver
> antenna except when actually using it.
>
> Thanks, gents!
>
> 73
> Ray K2HYD
> ______________________________________________________________
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>
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