Category: Propagation

Hot!

Not the weather … that’s cooled down considerably. I mean the BANDS!

I ventured up into the higher frequency bands tonight and it was productive. I had FT8 QSOs on 20, 17, 15, 12, 10, & 6 meters! The six meter contacts were into Texas, Mississippi, Louisiana, and Tennessee. Good strong signals, too! I think that’s about the first time in over a year that I’ve had any luck on six. I saw a strong KH6 (Hawaii) station on 12 meters, but couldn’t break the digital pileup 😀 .

I don’t even have an decent, efficient antenna on six meters. I just load up my home-brew vertical wire antenna with the autotuner and push about 75 watts at it. I have no idea how much is getting radiated. Enough, I guess. FT8 being a weak signal mode helps a lot.

On the POTA front, I’m just two confirmations short of 100 parks. I have worked 121, actually … just waiting for the activators to send in their logs. Whenever!

Tomorrow night is our club meeting, with a Dutch treat dinner beforehand. Always a highlight of the month. I just put the finishing touches on my Financial report … all ready to present

73 de Dick N4BC

Rough Copy …

I was working POTA stations in the upper reaches of 40 meters, and you wouldn’t believe how rough the copy was … or actually, maybe you would. Summertime is here … terrible deadly thunderstorms in the Midwest … the general elevated noise levels in our normal environment … all combine to raise the noise floor on the lower bands to the point where many signals are on the cusp of being unreadable. Quite a few of the stations are using low power and compromise antennas. That, coupled with the heterodynes from AM broadcast stations, drive you to distraction. The QSB tantalizes you by raising the signals above the noise and then just when you’re ready to copy something critical, dashing them down into the mud. Life is hard 😀 !

But … help is available! Today’s SDRs really have the capability of pulling some of them out of the hash (I have an IC-7300). Yesterday, I resorted to using all of the bells and whistles I could … auto notch, noise reduction, twin passband tuning, RF gain, tone controls … even the outboard audio filters in my speaker enclosure. All helped to give me just enough of an edge to copy some of those “unreadable” stations. DSP RULES!

So, what’s the moral of this story? Use all the tools that you have available! Yes, many of the older radios have beautiful sounding audio and great sensitivity, but today’s modern radios offer many tools that were not even dreamed of when those radios were designed and built. We truly live in amazing times!!

73 de Dick N4BC

Just sayin’ …

If you’re an HF aficionado, you have certainly noticed that band conditions are not optimal this week …

Stormy conditions …

The K-index is very high, and the lower bands are very noisy. Solar storms will wreak havoc with HF communications. There are still QSOs to be made … just not as good as usual.

But, when one door closes, another usually opens. Although I wasn’t able to be part of the group, I read in the forums that 6 and 10 meters had some GREAT openings. Remember, we’re getting into the season for sporadic openings on the higher bands. Check up there now and then.

73 de Dick N4BC

QRN

Folks … the bands have been really noisy at my QTH lately. Lots of spring storms with their associated lightning crashes have really made listening a lot more difficult. The QSB hasn’t been much better either.

As you know if you follow this blog, I’ve been bitten by the Parks on the Air (POTA) bug, and have really been pursuing activations of parks. I have nearly 60 confirmed now. A lot of these are, by their very nature, QRP operations with inefficient, compromise antenna systems. That, coupled with noise and generally poor propagation, has made things rough. It’s frustrating hearing other hunters working these activators, and I can’t even tell they’re there.

The temperatures have been up and down … typical spring weather here, but the trend is upwards. It does seem to rain and storm most weekends, so it’s hard to get outside and do portable ops. I’m afraid this more pleasant weather will soon end, with summer raising its ugly head with temperatures in the 90s and 100s with high humidity … unfortunately also typical for this area.

Whatever … not much I can do about it! I’ll just work through it until later in the year when I can complain about it being too cold. That’s the nature of the human beast … never satisfied 🙂 .

73 de Dick N4BC