Issue with J16 pin control with Thetis V2.9.0.8-HL2 Beta 5

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Bruce Schober

Aug 31, 2023, 3:45:34 PM8/31/23
to Hermes-Lite
I am using the J16 OC Control pins to set the output filter on my XPA125B transmitter.   I noticed that Thetis V2.9.0.8-HL2 Beta 3 was not setting the pins correctly when receiving below 30M.  J16 pin 4 is set (20M/30M in my setup) is active when pins 1, 2, or 3 should be active.  I also see this problem on Beta 5.  I did not check Beta 4.  I did not see it on Beta 1 or 2.  

When I initially installed Beta 5, the J16 pin settings worked correctly.  At some point the behavior changed to the above behavior. 

I am setting the transmit and receive pin settings the same so I don't have any timing problems setting the XPA125B band on transmit. This behavior has caused the band filter setting to be unreliable when transmitting below 30M.  I tried changing RF and MOX delays to no effect.

Here are some screen shot of the pin states for 40M.  The first is transmitting, the second is receiving.



2023-08-31 (8).png
2023-08-31 (6).png

Reid Campbell

Sep 4, 2023, 4:18:04 AM9/4/23
Hi Bruce,

Sorry, your email made it into my spam filter, which happens every so often.

There was a change were if Rx2 was enabled the higher frequency of VFO A or VFO B was used to select the LPF in receive but during transmit, the correct filter will be chosen.

Would that tie up with what you are seeing?


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