开云体育

Gents,

I just finished building my first U3S and GPS receiver. Everything is
working great so far.

The operating manual is very overwhelming. I'm wondering what to use
for "CAL" and "PARK" settings for WSPR? I will only be using WSPR for
now.

Thanks
N1ESE

When you use the GPS module the U3S can run a calibration routine, but rather than base the result on your operational transmit frequency you can specify a much higher frequency for the DDS to run at and get a more accurate compensating value at the end of the routine. I think I've got that right, but it is well documented by Hans.?

I have the park frequency set to ~130 MHz and try to run the calibration interval for somewhere between 2-3 minutes. I don't slew the offset very much and have it set for 2 or something like that.

Again, the software manual covers it pretty well.

73

Al Holt
WD4AH