I remember working from Houston as WA5KHM, a VU ( India) at around 9PM CST, on CW 15 meters in about 1965 when I was 15 years old. There was a W5??? Corpus Christi ham had his antenna on a Commercial broadcast tower so it was up maybe 100+ feet elevation. He was too far for groundwave and too close for direct skip. The Corpus W5 worked the VU first, and I worked the VU after the Corpus W5. The VU and the W5 sounded very echoic. For the Corpus W5 I don't know if I was hearing Long Path followed by a second Long Path? ...or was I hearing atmospheric scatter as the first arrival from Corpus, and Long Path as the second arrival. But I heard an approximate 1/7 second between sigs which corresponds well to Earth circumference. I remember the echo made it very hard to copy. It seemed like *an echoed dit filled in the blank space after the dit before it*. It muddled up a word real good!
Figuring at ~18wpm a dit is very close to exactly the time (Morse baud = WPM/2.4)... and it takes a signal to go around the world about one DIT time at that WPM. (25,000miles/186000miles/seconds ~1/7s ). I don't remember but I'm guessing most likely I engaged in something like a 15WPM to 20WPM QSO so it fits. I had an old WW2 oscilloscope and don't remember if I had it hooked up, but then I could have seen if there was another blip from 2nd pass. I seem to think I did, but I told this story so many times when I was a youngster, it may have turned into a "fish story" so I'm not sure. LOL Has anyone seen a long path blip come around the world more than once? ROD/ W5IE Rod Neumann cell: (832)444-0192 ALLogic Inc. / AdorStore PO Box 217 New Ulm, TX 78950 On Wed, Nov 3, 2021 at 10:39 AM Jeffrey Carson via BVARC <[email protected]> wrote: > Hello, I recently operated portable in Hawaii and noticed echo on some > signals. Was I hearing long path and short path (technically both, hehe)? > I seem to remember this back in 2013/4 during the last cycle of good DX. > This was last Wednesday on a PAR end fed wire in a coconut tree and an 817. > This was on 20 meters. > > Remember, it was only some signals. lol, so it wasn't the radio. 73 > > Thanks, > > KF5ONT > ________________________________________________ > Brazos Valley Amateur Radio Club > > BVARC mailing list > [email protected] > http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org > Publicly available archives are available here: > https://www.mail-archive.com/[email protected]/ >
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