Transverter LO error does not affect operational frequency

Dick Illman

Changing LO error does not adjust tx or rx frequency. Have GPS sync for radio. 2.2.8 software. UT5JCW 146/28 transverter. Need 2250 Hz LO error adjustment.

Tim - W4TME

I have converted this topic to a support HelpDesk ticket (http://helpdesk.flexradio.com) for expedited issue resolution.  Please respond using the HelpDesk ticket for issue resolution.

If anyone else is experiencing an issue similar to this one, please submit a HelpDesk support ticket for issue resolution.

Dudley WA5QPZ

If your transverter has a 10 MHz reference input,  sync it to the GPS ,  then you will not need to LO error correct.  

Dick Illman

Cheap transverter. No 10Mhz sync.

George KF2T

Can you show us your XVTR settings?

Dick Illman

Not sure how to show but Name=146, RF freq=146.0, LO=118.0, IF=28.0, LO=0 or -2250 (Hz)I am transmitting and receiving 2.25KHz low but changing the LO Error field changes nothing.

WA2SQQ

I might be wrong, but I recall thinking the same when I set my MMT144/28 up. When I changed the offset it seemed to shift the displayed frequency, not the transverter's output. I'd make a change but did not see any change on the frequency counter sitting next to the transverter. Than I realized that after making a change to the offset, I needed to readjust the displayed frequency to the desired frequency. After a few more adjustments the displayed frequency and the actual transverter matched. Again, I might be wrong since this was 2 years ago - but it's still working OK with the latest version.

Dick Illman

I think that is what I discovered yesterday. I think the Smart SDR software manual could be improved but I would call this issue resolved.