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Transverter LO error does not affect operational frequency

Dick Illman
Dick Illman Member ✭✭
edited March 2020 in SmartSDR for Windows
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.

Comments

  • Tim - W4TME
    Tim - W4TME Administrator, FlexRadio Employee admin
    edited July 2018
    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
    Dudley WA5QPZ Member ✭✭✭
    edited March 2020
    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
    Dick Illman Member ✭✭
    edited July 2018
    Cheap transverter. No 10Mhz sync.
  • George KF2T
    George KF2T Member ✭✭✭
    edited February 2019
    Can you show us your XVTR settings?
  • Dick Illman
    Dick Illman Member ✭✭
    edited July 2018
    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
    WA2SQQ Member ✭✭
    edited July 2018
    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
    Dick Illman Member ✭✭
    edited July 2018
    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.

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