A Band Aid for the XHDATA D-220

Many thanks to SWLing Post contributor, Bob Colegrove, who shares the following guest post:


A Band Aid for the XHDATA D-220

By Bob Colegrove

In the olden days of analog radios, we would have generated a graph plotting frequency against a 0 to 100 linear bandspread scale. That permitted determination of a station’s frequency with varying degrees of accuracy.

The case of the charming little D-220 requires a simpler approach. The dial covers 5.6 MHz to 22 MHz in less than two inches. They could have cut off coverage at 18 MHz and gained a precious half inch of dial.

With the shortwave scale well below the pointer, I needed some additional guidance indicating where I was. Best not to get too fancy. I cut a strip off a sticky-back label and attached it to the dial right below the pointer. Using the left edge of the pointer as a guide, I marked off the location of each international broadcast band and a couple time stations. The width of each band isn’t much more than the point of a sharp No. 2 pencil. Any further resolution is hopeless, but at least you know what part of the spectrum you are in.

Red lettering is not part of the band aid.

Again, going by the old logarithmic analog dials you would expect the frequencies to be increasingly mashed together as you go higher. This is not the case with the D-220, nor do the increments appear to be very linear. At any rate, it is now relatively easy to tune from band to band.

The sensitivity and clarity of the D-220 is amazing. Perhaps it’s the green one.

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13 thoughts on “A Band Aid for the XHDATA D-220

  1. Gérard Koopal

    Mine arrived wednesday in The Netherlands. With shippingcosts € 20,00 euros. Yes, the shortwavebands are tight and the idea of marking stations is great!
    Thanks for the tip!

    Reply
  2. JP

    Sensitivity is great. My only issue was if I tuned to far right
    of the dial, when trying to go the other way, it got “stuck”. Returned for replacement, which will arrive tomorrow. If this one sticks, I’ll probably take cover off to see what is binding.

    Reply
  3. Egil Ingebrigtsen

    Just got a message from my neighbour that my D-220 arrived today.
    Unfortunately I am in Trondheim, and will be here till sunday. So I’ll come back home way too late for your contest, but if it becoimes a success, I’ll participate next time.
    BTW, I ordered a green one 🙂

    Egil – LA2PJ

    Reply
  4. Jim Vargo

    My wife still paints the mute button on the TV remote control with red nail polish too! I listen to my radio. Glad it’s muted.

    Reply
  5. Sergio Potes

    Good idea. I wonder too why they don’t Stat at 4.5 Mhz since there is more stations in this area than on the higher bands. I have the ? green one and yes the sensitivity is good on this radio.

    Reply
  6. SamA

    I just clipped a quarter inch sticky end of a Post-It and let it cover the FM2 band. That way I can mark the top edge of the Post-It for SW signals and the bottom edge for AM stations. It isn’t rocket science perfect, but it gets me a little closer to figuring where I am on the dial.

    Reply
  7. William, KR8L, WPE9FON

    Excellent! A couple of variations come to mind, such as using the label to mark the location of favorite stations such as RNZ, RRI, REE, Ifrikya FM, etc. (Of course, you’d have to remember which mark went with which station.) Or, on the D-219, using this to add a much-needed logging scale to the bottom of the tuning indicator.

    Reply
  8. Amham

    Is the green more sensitive than the orange? Looks like I need to buy another…hihi. BTW, with a few points and discount on Amazon I paid $4.50 so not a bad deal!

    Reply
    1. Bob Colegrove

      Thanks Tom. After writing this, I was reminded of my late mother who used to dab red finger nail polish on the dial where all the local stations came in.

      Reply

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