[Elecraft] K4 Use Case Question - Support for multiple instances of WSJT-X

[Nr4c]

I think you need a K4D with the second ADC.  You’d have VFO A in left ear, VFO C in right ear. Two instances (installed in two separate folders) WSJT, one listening to left channel, other listening to right channel. 

But you have to keep up with which is transmitting. Once you start a ASO on VFO A you don’t touch VFO C. 

What’s to gain in this scenario?  



Sent from my iPhone
...nr4c. bill


> On Aug 20, 2019, at 6:34 AM, Dave <rocketnj at gmail.com> wrote:
> 
> Dave, 
> 
> Will be interesting to hear official answer from Elecraft.
> 
> A competitor’s radio does exactly what Logan outlined. You would bring up two instances of WSJT-X. Only one can transmit at a time.
> 
> Dave wo2x
> 
> Sent from my iPad
> 
>> On Aug 20, 2019, at 3:38 AM, David Gilbert <xdavid at cis-broadband.com> wrote:
>> 
>> 
>> I'm no expert by any stretch of the imagination, but it doesn't sound to me like that would be effective with any single rig, K4 or otherwise.
>> 
>> First off, as best I can tell you need to assign different rigs to the multiple instances of WSJT-X if run on the same computer.  I don't believe you can assign the same rig to two different instances unless you use two separate computers, and then you have the nasty problem of feuding CAT signals.  Please correct me if you have found that statement to be erroneous.
>> 
>> Secondly, you can't simultaneously transmit on both frequencies (unless you use Fox/Hound mode, which is an entirely different matter) and you can't receive on one frequency while transmitting on the other so you end up staggering your QSOs with no gain in effectiveness ... other than maybe quicker band switching than doing it manually.
>> 
>> It seems to me that to gain any benefit without using Fox/Hound you need two separate transmitters, of course fed through a passive combiner if using the same antenna.
>> 
>> Or what am I misunderstanding?
>> 
>> 73,
>> Dave   AB7E
>> 
>> 
>>> On 8/19/2019 11:06 PM, Logan R Zintsmaster wrote:
>>> Here is a use case question..
>>> 
>>> The radio is connected to a single antenna.
>>> 
>>> VFO A is tuned to 14.074 MHz and VFO B is tuned to 14.080.
>>> 
>>> An audio data stream from the VFO A frequency is "connected" to an instance
>>> of WSJT-X decoding FT8.
>>> 
>>> A second, independent audio stream from the VFO B frequency is concurrently
>>> "connected" to a second instance of WSJT-X decoding FT4.
>>> 
>>> Both instances of WSJT-X decode their respective audio streams,
>>> concurrently.
>>> 
>>> Starting a QSO in either instance of WSJT-X switches the transmitter to the
>>> appropriate VFO for the duration of the QSO.
>>> 
>>> The audio stream for the instance of WSJT-X not in the QSO is interrupted
>>> while the transmitter is operating.
>>> 
>>> 
>>> Can a K4 support this use case or is a K4D required?
>> Dave, 
> 
> Will be interesting to hear official answer from Elecraft.
> 
> A competitor’s radio does exactly what Logan outlined. You would bring up two instances of WSJT-X. Only one can transmit at a time.
> 
> Dave wo2x
> 
> Sent from my iPad
> 
>> On Aug 20, 2019, at 3:38 AM, David Gilbert <xdavid at cis-broadband.com> wrote:
>> 
>> 
>> I'm no expert by any stretch of the imagination, but it doesn't sound to me like that would be effective with any single rig, K4 or otherwise.
>> 
>> First off, as best I can tell you need to assign different rigs to the multiple instances of WSJT-X if run on the same computer.  I don't believe you can assign the same rig to two different instances unless you use two separate computers, and then you have the nasty problem of feuding CAT signals.  Please correct me if you have found that statement to be erroneous.
>> 
>> Secondly, you can't simultaneously transmit on both frequencies (unless you use Fox/Hound mode, which is an entirely different matter) and you can't receive on one frequency while transmitting on the other so you end up staggering your QSOs with no gain in effectiveness ... other than maybe quicker band switching than doing it manually.
>> 
>> It seems to me that to gain any benefit without using Fox/Hound you need two separate transmitters, of course fed through a passive combiner if using the same antenna.
>> 
>> Or what am I misunderstanding?
>> 
>> 73,
>> Dave   AB7E
>> 
>> 
>>> On 8/19/2019 11:06 PM, Logan R Zintsmaster wrote:
>>> Here is a use case question..
>>> 
>>> The radio is connected to a single antenna.
>>> 
>>> VFO A is tuned to 14.074 MHz and VFO B is tuned to 14.080.
>>> 
>>> An audio data stream from the VFO A frequency is "connected" to an instance
>>> of WSJT-X decoding FT8.
>>> 
>>> A second, independent audio stream from the VFO B frequency is concurrently
>>> "connected" to a second instance of WSJT-X decoding FT4.
>>> 
>>> Both instances of WSJT-X decode their respective audio streams,
>>> concurrently.
>>> 
>>> Starting a QSO in either instance of WSJT-X switches the transmitter to the
>>> appropriate VFO for the duration of the QSO.
>>> 
>>> The audio stream for the instance of WSJT-X not in the QSO is interrupted
>>> while the transmitter is operating.
>>> 
>>> 
>>> Can a K4 support this use case or is a K4D required?
>>> 
>>> Can this use case be supported if each instance of WSJT-X is in a different
>>> band?
>>> 
>>> 
>>> 73
>>> 
>>> Logan, KE7AZ
>>> 
>>> 
>>> 
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>> 
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