Roelof, My original comment had more to do with the one-hour nature of the event than the underlying propagation. Upon further reflection, the hour was marked at one end by my starting the session, a
Not as good for TA here last night. Just one spot on Stefan. But from the other direction, there was a good collection of NA stations, including VE7BDQ. Static will likely be a problem here this week
Mike, Interesting to read about your RX equipment. Sounds like a bit effort but must be a great fun as well :-) I like the different antennas, and i'm glad to read that there is interest to get my s
Markus, It's running as of 1900Z today (1500 local daylight time). John, W1TAG Hello The Net: For those with a LF interest, For those that use LORAN to generate their reference frequencies, Wildwood,
Some years ago I proposed GPS / UTC seconds locked coherent signalling on LF, but didn't have the expertise to write the software - and certainly not to implement strong FEC ! Andy G4JNT Somewhere ar
Stefan, A -6 dB SNR would definitely have been CW copy had I not been: 1. 200 km away. 2. Asleep. Anyway, it was a good night. I note with interest that this was the first night in some time that the
After one quiet night, the MF TA activity increased last night. Dave, AA1A (WD2XSH/17) had 4 spots on DK7FC from 0124 to 0234Z, and 3 spots on DF6NM from 0234 to 0314Z. I (W1TAG/1) had 3 spots on DK7
I'll be happy to watch, but think you should wait a bit. Be advised that TA conditions have slipped quite a bit in the last couple of days, and will probably be worse tonight than last night. A geoma
One trick that I have used on several preamps: Put a small PC-mount relay (such as those used on telephone lines) at the front end of the preamp. Connect the relay coil to the preamp power feed. Wire
Well there is a cohort of noble men who have set fire to, window frames, fences, sheds, tuning boxes etc with 136kHz RF over the years :-)) plus minor infringments like rope guys, and waste-pipe spre
Luis, Getting good spots from La Reunion and sourprisingly, the only "pond crossing" spots over the last two nights were mine. Check Rx station WD2XSH/17 Regarding the "pond crossings," remember that
Andy, I recall doing a series of 137 kHz experiments with Peter Martinez using PSK, with the sending end being triggered by 1PPS interrupts from my HP GPS receiver. Somewhere here I have the 8051 cod
A bit old-fashioned, but WD2XES will be running DFCW100 on 137.779 kHz tonight until 0330Z. The signal was visible on Hartmut Wolff's grabber last night, though with considerable fading. John, W1TAG/
Mike, Thanks very much! There was also a single-ID brief period of copy on G4WGT's grabber. I saw a complete ID and a lot of pieces on Hartmut Wolff's screen, as well. Not a great night, but well wor
How does the HP Z3816A rate for short term stability compared to caesium/rubidium based GPSDOs? Warren, Haven't had the ability to do any measurements, but unlike most of the simple GPSDOs, the HP un
Just looking at various TA grabbers at this point, and wondering if this higher BW stuff should be moved away from the TA window near 137.780 kHz. Perhaps with the lower activity it doesn't make as m
