[Elecraft] Adding PTT Out Switching to a K3

[Don Wilhelm]

Tom,

To the best of my knowledge, there is no external signal from the K3/K3S 
to indicate whether ANT1 or ANT2 is active.

If you have any manual switching in place, incorporate it in that switching.

73,
Don W3FPR

On 11/7/2019 12:12 PM, wa8wzg at wa8wzg.net wrote:
> To All..
> while we are on this subject,,
> I am looking for a way to to have a separate PTT out for Antenna 2...
> I want to be able to control two different amplifiers PTT when switch 
> from Antenna 1 and Antenna 2..
> Any thoughts??
> Thanks
> Tom
> N7GP
> ex WA8WZG
> 
> 
> 
> On 2019-11-07 09:58, Bob McGraw K4TAX wrote:
>> Connect the KPA-1500 via the ACC cable and thus free up the PTT
>> output.    The system is very smart and works exceptionally well.   I
>> use this method with my KPA500 and KAT500.
>>
>> The PTT Out is connected to the VHF transverter.
>>
>> 73
>>
>> Bob, K4TAX
>>
>> On 11/7/2019 10:44 AM, N4ZR wrote:
>>> 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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