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6400 drifting issues only on 6M

N8SDR
N8SDR Member
edited July 2018 in FLEX-6000 Signature Series
While on 6 Meters I soon start drifting low within 2-3 minutes sometimes less even after doing a calibration this effect only happens on 6 m that we have seen so far, on 10-160 I do not encounter a drift issue, I have had several folks chase my TX signal while working on 6 meters, in both SSB and digital modes.(those are the only two modes i have tried on 6 M) but would assume it happens in all modes. Has anyone else experienced this, running software version 2.2.8.. Power supply voltage is stable, and a Non M model so no knob is being bumped, have even locked mouse scroll  options, and why only on 6 meters.

Comments

  • Tim - W4TME
    Tim - W4TME Administrator, FlexRadio Employee admin
    edited July 2018
    N8SDR opened a HelpDesk ticket.  This seems to be other stations drifting, not the radio. The TCXO is stable.
  • N8SDR
    N8SDR Member
    edited May 2018
    Tim had me run a test to check the TCXO and it is working as it should. Using the station who reported me drifting, he swapped out radios on his end and we had a 20 minute qso on 6 meters in which there was no drift in frequency. Apparently his KX3 is having thermal drifts on 6 M also note this article in-which another user of a KX3 experienced the same KX3: thermal frequency drift- http://elecraft.365791.n2.nabble.com/KX3-thermal-frequency-drift-td7587010.html , this is not an issue with the 6400, sorry for the confusion. 

    Rick 
    N8SDR
  • Tim - W4TME
    Tim - W4TME Administrator, FlexRadio Employee admin
    edited May 2018
    No apologies necessary. I'm glad you were able to get to the bottom of the issue.
  • Jim K4JAF
    Jim K4JAF Member ✭✭
    edited May 2018
    You will find many 6 meter stations off frequency as well. 
  • Tim - W4TME
    Tim - W4TME Administrator, FlexRadio Employee admin
    edited March 2019
    Not mine!  6700+GPSDO ;-)

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