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SW-3B transceiver

Discussion in 'QRP Corner' started by AE5X, Aug 14, 2019.

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  1. AE5X

    AE5X Ham Member QRZ Page

    Please post your impressions of it when you get it - KD8ZM too!

    73,
     
    WB0WQS and KD8ZM like this.
  2. BA4TB

    BA4TB Ham Member QRZ Page

    Though the rig is unperfect,but we will try our best!

    73,
    Dale BA4TB

    https://ba4tb.qth.com/shop/
     
  3. WB0WQS

    WB0WQS Ham Member QRZ Page

    The SW3B arrived by slow boat yesterday in good shape. I fired it up, it works great.. made a couple of nice contacts tonight on 40 meters with a 135' end fed.
    My only comment is that changing the cw speed is a little clunky, and not on the fly... you key the paddle dots and dashes to lower and raise the keyer speed, and then wait for
    8 seconds for it to initialize as John, AE5X mentions on his blog. But I see that Dale is participating in our conversations and hoping he can update the firmware to streamline some of these setting parameters.
    Overall, worth the price. This rig will take the place of two or three of my qrp rigs in the shack. (PFR3a and SST-30, Cricket-40, Pixie40....etc, etc.) OK, maybe I will keep a few.
     
  4. WU7H

    WU7H Ham Member QRZ Page

    Reviving this thread... so guys, now that you've had the rig for a few months what do you think? I'm considering replacing my original 3 band Mountain Topper with this for my backpacking trips. The most attractive feature is the ability to use higher voltage batteries without worrying about blowing the radio up.

    Did any firmware updates ever materialize? It seems like the long delay after setting keyer speed and lack of a programable keyer memory are the main downsides in the reviews I've seen.

    Thanks,

    -Josh
     
  5. WW2PT

    WW2PT Ham Member QRZ Page

    From John’s review:
    • “The sidetone frequency is fixed at 600 Hz.”
    That’s close to a deal breaker for me. That’s a bit too high for my comfort. I have to set my side tone around 470 Hz otherwise my right ear starts popping (thanks, Motörhead...). I like everything else about this radio.

    Thanks for this. The basic radio overview section is very informative.
     
    KL7KN likes this.
  6. KL7KN

    KL7KN Ham Member QRZ Page

    Thanks for the kind words.

    I took a good look at the photos of the rig on line. Looks to be a rehash of the HS1A/9200 - but without the filter modules. Very nicely done.

    I could update the manual to make it SW-3B specific, but the troubleshooting would be a guess w/o having a rig to play with.

    The single conversion is the same, the BW adjustment is a bit different as the bias is altered rather than fixed as found in the other YOUKITS rigs.

    The testing steps should be the same if the IF remained at 4.9152 Mhz (BFO crystal should be 4.9152 Mhz)

    Good luck, look like a decent close and the RX should be pretty hot.
     
    WW2PT likes this.
  7. AE5X

    AE5X Ham Member QRZ Page

    If there have been any firmware updates, they're not mentioned on Dale's website. And I doubt there will be.

    Although I like the radio, I don't use it in such a way that its small size and weight matter to me - ie, I'm not backpacking or "traveling light". I still do park activations but I'm driving and then walking to a picnic table. My mcHF is heavier and bulkier, but I have all HF bands (at 10 watts) and am not limited to CW, so that's the rig that comes with me for where I would otherwise use the SW-3B.

    If anyone's interested, I'll let her go for $175 shipped to a US address.
     
  8. NU6I

    NU6I Premium Subscriber QRZ Page

    John, I did send you an email. If it is still for sale I'll buy it.
     
  9. NU6I

    NU6I Premium Subscriber QRZ Page

    Yes, the MTR-3B has a back light however on the first production runs the back light was not very bright and the contrast poor. It was hardly readable.
    Afterwards that was fixed and now the display is bright with a high contrast. I am expecting my SW-3B this Saturday. We will see if I keep both or if
    the MTR-3B goes.
    For me the major drawback with the MTR-3B is the maximum supply voltage of 12 volts.
     
    KD8ZM likes this.
  10. KD8ZM

    KD8ZM Ham Member QRZ Page

    MTR3B LCD is such a fun rig! Enjoy!
     

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