started a separate topic as I did not want to go off subject in the other.
Richie,
I discovered this after I changed the spectrum resolution while I was in transmit.
I was in CTUN and performed a spectrum adjustment by clicking on ZTB
I then selected a frequency and then clicked on MOX.
While transmitting I clicked on the 0.5x,1x,2x or 4x buttons thus changing the transmit resolution.
After moving back into receive I clicked ZTB, I selected a resolution by clicking 0.5x, 1x,2x or 4x buttons.
When I select one of those buttons not only does the resolution change, but the frequency does as well.
In order t correct this, I have to close out of Thetis and restart.
Here is a short video demonstrating what I see... https://youtu.be/kNBwRoWcqW0
If this is one of the issues you are going to work on in the future just ignore this Topic

It is easily avoidable by NOT doing what I demonstrated. I've only adjusted the transmit resolution
one other time. Thanks.