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New USB interface for HF digital modes by MFJ

Discussion in 'Amateur Radio News' started by KJ4YZI, Mar 13, 2017.

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  1. KJ4YZI

    KJ4YZI Ham Member QRZ Page


    A quick review of the new USB interface made by MFJ for PSK31 and all other HF digital modes.
    [​IMG]
     
  2. NU4R

    NU4R Premium Subscriber QRZ Page

    Thanks!
     
  3. KD2GIY

    KD2GIY Ham Member QRZ Page

    How will it work not having a delay? For winlink you have to turn the delay down, but for cw you must turn delay up. Is it better then the signalink?
     
  4. KI8W

    KI8W XML Subscriber QRZ Page

    Does not do true FSK keying does it....nope.
     
  5. AD0AC

    AD0AC XML Subscriber QRZ Page

    I wonder if the sound card is supported in ALSA for Linux? I've been trying to get a Signalink USB working on a Raspberry Pi for some time now and alsamixer doesn't have drivers for it.
     
  6. KK5JY

    KK5JY Ham Member QRZ Page

    I was curious about that, so I pulled the manual [mfjenterprises.com], and it says:

    Innovative PTT detector circuitry eliminates tricky VOX delay adjustments

    And that's all it has to say about delay. ;) Looks like they also used a pigtail instead of a USB connector on the case. Yuck. Given that it's basically the same price as a SLUSB, I'll stick with the SLUSB.

    What OS are you using? I haven't had any issues with the SLUSB and Raspbian. Setting levels works fine from the front panel.
     
    N7AFB likes this.
  7. AJ5F

    AJ5F Ham Member QRZ Page

    Too barebones, especially for the price. Save you money. Get a SignalLink or something comparable.
     
    N7AFB and KK5JY like this.
  8. KA9JLM

    KA9JLM Ham Member QRZ Page

  9. WD4ED

    WD4ED Ham Member QRZ Page

    Why would it? It's an "AUDIO" device. You do know how true FSK works right? Now AFSK would use an audio device.

    Thanks,

    Ed
     
  10. WD4ED

    WD4ED Ham Member QRZ Page

    This device is a day late and a dollar short. MFJ must have been waiting to make sure audio modes weren't a passing fad! :) USB jack on the back? How hard would a delay have been?
     
    N7AFB, KK5JY and KD2GIY like this.

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