Just a trace here, way too much static last night. http://www.magma.ca/~ve2iq/grabs/ Bill VE2IQ Surprisingly good copy despite high QRN levels ... http://www.w1vd.com/grabber.html
Hi Stefan: Nice to see your callsign in the summer! I was using the same old orthogonal loops configured to favor signals coming in from NE (or SW). Guess one of these days I should put a relay box o
Nothing here Stefan but you were visible on Jay's grabber last night. The SNR here doesn't seem right, I'll look into it today. Thanks for transmitting. 73, Bill VE2IQ Did you copy me? I just found t
My grabber is active here: www.magma.ca/~ve2iq/grabs/ 73, Bill VE2IQ 73, Stefan Am 07.12.2014 00:03, schrieb DK7FC: Hi LF, I'm back on LF, running some traditional DFCW-90 on 136.172 kHz until daylig
Conditions here in Westmeath, Ontario (FN15nt) were relatively good last night. Here is the message part - would be easy copy if we could get rid of the static crashes: http://www.magma.ca/~ve2iq/mes
I'll leave the grabber on: http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_LF_DX_Grabber.html  (in the moment i have a QSO with DF6NM, thus the RX is overloaded but tonite it will be clean). 73,
I'm very grateful for the great news about the new antenna and that Mother Nature hasn't grounded it (yet). If she does, it only means another workout for me. Yesterday an invigorating hour was spent
Somewhere around February, 2004, Bill de Carle, VE2IQ, came out with a version of AFRICAM that implemented GPS-synched BPSK. A number of us played with it in the 160-190 kHz U.S. "Lowfer" band. The G
Watch out for another possible ambiguity: how are you going to ensure the rising edge of the divider's 1-Hz output pulse is synchronized with the start of a UTC second? Bill VE2IQ Monday, October 24,
There should be a "Nicholson limit" for how well something of a certain complexity can be explained using a given number of words with a high probability of being understood correctly. Your paper is
My grabber is currently active in FN15nt (70 uHz/bin) centered on 8270 Hz. Might be able to see Joe if he puts a carrier on the air for a few hours. http://www.magma.ca/~ve2iq/grabs/ Bill VE2IQ Am 01
Hi Dave, thanks for the post. Nothing like a discussion about simple antennas which work magically :-) Your sketch shows a short at the point where the 1' wide feedline connects to the loop (if I int
At 09:25 PM 3/4/2009, you wrote: I seem to get best results while trying to pull signals out of the noise when the AGC of the receiver is OFF as well as the Noise Blanker and Noise reduction features
Below are two decodings from the *same* recording. Radio tuned to 508.600 Khz for nominal 799.988 Hz audio output, so Jay is at 699.988 and John is at 899.988 Hz (200 Hz higher). Recording started at
At 04:38 AM 9/11/2009, I wrote: [..] once you accumulate half a Hz of frequency offset adding in more samples actually hurts more than it helps because ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (that should be
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 clear
Jay, this is incredible! I started recording at 2235z - and ran for 30 minutes before transferring the file to my desktop for decoding. During the entire 30 minute period there was absolutely no audi
Here is a spectral plot showing both signals together. Actually, 200 Hz was overkill separation as you can see... http://www.nrtco.net/~ve2iq/jay_john.gif The red marker just above the arrow cursor s
