So - the only software I've found that reasonably transmits with the Softrock is "rocky". It's not fancy, but it fully supports
transmit, including a keyer that works with a paddle plugged into the softrock.
HOWEVER - I am not able to calibrate the frequency of the Si570. Let's assume that my generator ( actually, a tinySA ) is set to 6.88MHz. The softrock sees its strong signal at 7.013MHz. I click on tools->si570 calibration. A little box appears with a couple of text boxes: "Displayed Frequency"( can't edit it, it's just wherever the frequency cursor is pointing ) and also "True Frequency". I dutifully enter the frequency that my generator is actually putting out, hit "OK", and....nothing. No difference.
Maybe if I edit the "si570Calibration" field in Rocky.ini? Right now, it's "Si570Calibration=0.205920063688709".
- Jerry KF6VB