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Operating Notes: QRL?, a multitude of modes, an appropriate name

November 8, 2018 By Dan KB6NU Leave a Comment

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Tip: Don’t call QRL? with your narrow filters on

The other day, a guy got on and called QRL? very near the frequency I was on. I couldn’t really hear him because I had selected a pretty narrow filter, and I bet he couldn’t hear me responding to that call with a “C” to tell him that, yes, the frequency was in use, because almost immediately he started calling CQ.

So, you might ask, what’s the problem? Even though you both were relatively close in frequency, you apparently weren’t interfering with one another. That’s true, but the station that I was in contact with might not be so fortunate to have such great DSP filtering. In that case, the guy would be interfering with my transmissions.

Another thing that you might ask is how did you know the station was even there in the first place. Well, I could see him on my IC-7300’s bandscope. I’m guessing that the other guy didn’t have a bandscope, but did have some very sharp filters.

What’s the solution? Don’t use very narrow filters when calling QRL? If you do, you won’t hear stations that really are too close to you.

A multitude of modes

The other day I first made a contact on Ann Arbor’s newest DMR repeater, then wandered down to the shack to make a few CW contacts. I eked out one or two, but band conditions being what they are, I instead switched over to JS8CALL and typed out a few. After doing that, I thought to myself, “How cool. I was just able to use the oldest mode in amateur radio and two of the newest.” Let’s make use of all our modes.

What’s in a name?

Yesterday, I got an order for an Extra Class study guide from a guy with an appropriate name: Jay Ham. No one will be able to say that this guy isn’t a “real” ham.

Related posts:

  1. Operating Notes: Finding CQers on the IC-7300, CW abbreviations, indoor Buddipole
  2. CW Geek’s Guide to Having Fun With Morse Code: Getting on the Air – Tuning In
  3. 2015 General Class study guide: Section G2C – CW operating procedures and procedural signals, Q signals and common abbreviations, full break in
  4. 2020 Extra Class study guide: E2E – Operating methods: operating HF digital modes

Filed Under: Classes/Testing/Licensing, CW, Digital Communications

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On January 10, 1946, the US Army's Project Diana successfully bounced radio waves off the moon, firing the opening salvo in the Space Race and giving birth to radar astronomy.


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