Ha-Jo, That's one way to look at it, and a valid approach. But consider another example: Suppose you have a single-turn loop that has an (arbitrary) impedance of 0.1 +j10 ohms at a frequency of inter
Just to add a little more information on LF transmitting loops: Paralleling conductors is usually more effective than creating a multi-turn loop. The extra copper loss from another turn can easily ne
Ha-Jo, I wasn't making a comment on your setup -- just pointing out some options for others who might want a tuned, single turn loop. No offense intended! John, W1TAG I am sorry, but I do not see you
That's sad. Laurie was a real gentleman and a good op. I remember how excited he was when he got across the pond on 72.4 kHz almost 7 years ago. And he was a regular on 137 kHz during the T/A testing
Had 12 lines of SM6BHZ copy last night between 0152 and 0420 from my home QTH in Massachusetts. No sign of other calls. The spots have been loaded to the MEPT database. John, W1TAG (FN42ch)
Laurence had mentioned that conditions seemed good last night. I had 22 lines of SM6BHZ WSPR copy between 2340 and 0154Z from Massachusetts (FN42ch). Copy started and ended earlier than usual. John,
For those who may want to experiment, WE2XGR/3 will run WOLF(10) tonight on 508.700 kHz from 2330 to 0230 UTC. The resulting "catfight" with WE2XGR/2 should make interesting aural listening in the NE
Sorry for the short notice, I sent this using the wrong email account... WE2XGR/3 will again be running WOLF(10) on 508.700 kHz tonight from 2300Z until 0500Z. Reports are welcome. John, W1TAG / WE2X
Graham, I tried to upload them, but they were rejected due to some error in the file. I was using a laptop at a portable QTH, and anything is possible. Will be listening again tonight from home. John
Jim, XGR/3 off at 0235. John, W1TAG Having arrived home, I see I have been copying WE2XGR/2 since about midnight. I started up another instance of WOLF GUI upon seeing that WE2XGR/3 was also on, and
Dave, On a quick look, I see some substantial frequency drift, probably due to the receiver, and also the possibility that your actual sound card sampling rate is quite different from the default 800
Dave, The deviation of the actual sampling rate from the nominal (8000, 11025, etc.) have always been an issue for low bit-rate sound card modes. The newer schemes may produce wider excursions, but t
Jim, And I'd be happy to watch for it. Tonight would be difficult, as we will be getting ready to return home, but the rest of the week would be fine. John, W1TAG
J.B., For work at 500 kHz, I'd be tempted to go no longer than 16 frames. I'm beginning to think that the fast fades and poorer phase stability hurt the build-up of copy. While you may get your first
