Transverter LO error does not affect operational frequency

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.

Dick Illman

22 Posts
0 Reply Likes

Posted 5 months ago

5 months ago

Tim - W4TME, Customer Experience Manager

9152 Posts
3478 Reply Likes

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.

Comment

5 months ago

Dudley - WA5QPZ, Elmer

83 Posts
13 Reply Likes

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

Comment

5 months ago

Dick Illman

22 Posts
0 Reply Likes

Cheap transverter. No 10Mhz sync.

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5 months ago

George Molnar, KF2T, Elmer

1590 Posts
555 Reply Likes

Can you show us your XVTR settings?

Comment

5 months ago

Dick Illman

22 Posts
0 Reply Likes

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.

Comment

5 months ago

WA2SQQ

421 Posts
87 Reply Likes

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.