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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