[Elecraft] Adding PTT Out Switching to a K3

[N4ZR]

Well I'll be darned.  I just pulled that cable out of the K3 and it is 
indeed redundant.  I must have missed that in the manual.  Thanks, Bob.

While I'm on the subject, I wish that Elecraft would clean up their 
terminology - their use of "Key" to denote PTT is confusing.  See the 
back panel of the K3, for example, which has PTT IN and KEY OUT jacks in 
the same row.  I believe this usage originated with CB.

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 11:58 AM, 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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