copying rtty

Discussion in 'General Technical Questions and Answers' started by EXK3AHY, Aug 20, 2018.

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  1. EXK3AHY

    EXK3AHY QRZ Member

    Aug 19th I was able to copy rtty with several different software on 40 meters...on Aug 20 when rtty roundup started I could not copy anything....the waterfall kind of looked like rttym from what I have seen published....is there something I am missing here??
     
  2. WA9UAA

    WA9UAA Ham Member QRZ Page

    Don't know, perhaps the receiver and software were overwhelmed by all the activity.
    73,
    Rob
     
  3. KS2G

    KS2G Subscriber QRZ Page

    What software?
    What's your receiver?
    Does it receive RTTY using FSK or AFSK?
    Does it have sufficiently narrow filtering for RTTY?
    Many rigs receive AFSK through the regular 2.5 KHz ssb filter.
    That's too wide for a contest when signals are packed close together -- so there are multiple signals within the pass-band, so none of them will decode.
     
    N4UP likes this.
  4. WA9UAA

    WA9UAA Ham Member QRZ Page

    Just remembered, all it took to throw your digital reception out of whack was to move the IF shift off center. With the IF off center the tones were no longer in the filter just right.
    73,
    Rob
     
  5. K8JD

    K8JD Ham Member QRZ Page

    did you select reverse on the program? gotta have mark ansd space on the right sides, to copy !
     
    KF5FEI likes this.

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