Yaesu FTdx101D tops Sherwood list

Discussion in 'Ham Radio Discussions' started by W6RZ, May 10, 2019.

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  1. W6RZ

    W6RZ Premium Subscriber QRZ Page

  2. W4NNF

    W4NNF XML Subscriber QRZ Page

  3. NL7W

    NL7W Premium Subscriber QRZ Page

    But it's not tops in other key areas.
  4. W6RZ

    W6RZ Premium Subscriber QRZ Page

    Yes, the TS-890S tops the list for RMDR. The FTdx101D is 7 dB worse at 10 kHz offset, which places it at second place (tied with the IC-7851) in that category.

    The ">" sign on the blocking dynamic range means he couldn't measure it since it exceeds the +20 dBm output of his signal generator. Same for the TS-890S, so no clear winner there.
  5. WB2WIK

    WB2WIK Premium Subscriber QRZ Page

    It's unfortunate that Rob doesn't test transmitters also.

    But the League lab does. I'd like to see how it fares on TX IMD (IM3/5/7/9), keying envelope faithfulness at higher keying speeds, TX noise spectrum vs. offset and other stuff. They do test that, and I guess I'll have to wait.:(
  6. NL7W

    NL7W Premium Subscriber QRZ Page

    Also favoring the TS-890S (as compared to said new Yaesu):
    • Local Oscillator noise is lower by 7 dB
    • Significantly lower receiver noise floor
    • It ultimate filter rejection is better by at least 3 dB
    • Significantly lower AGC threshold
  7. W6RZ

    W6RZ Premium Subscriber QRZ Page

    Yes, I addressed that. RMDR and LO noise are the same thing.
  8. NL7W

    NL7W Premium Subscriber QRZ Page

    And related to a lower noise floor... and quite likely the lower AGC threshold. Hence its sensitivity.
    Funny how that works.

    I fully believe the TS-890S would make the better rig to attach the best transverters out there.
    It can dig. And I can "dig" that.
  9. N2RJ

    N2RJ Ham Member QRZ Page

    I've pretty much said for a while now that up in that territory no human ears can discern a difference.

    But, Yaesu seems to have a good radio here.
    W0XX, WA2SI, N0TZU and 4 others like this.
  10. NL7W

    NL7W Premium Subscriber QRZ Page

    I suppose that could be the case on the HF bands. We'll have to wait and see. :)

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