Dear Marco, LF Group, Am now running a WSPR beacon on 136.27 "dial frequency", 137.790kHz RF output - it will probably stay on overnight. So far, nil seen from DD7PC. Cheers, Jim Moritz 73 de M0BMU H
Dear Graham, LF Group, Have been watching your test for an hour or so. At the peaks of the fades, all 3 modes decode quite well:- MSK4: CQ CQ CQ de g0nbd g0nbd g0nbd CQ CQ CQ de g0nbd g0nbd g0nbd qsl
Dear Richard, LF Group, Your beacon is currently peaking at about 559, with the usual deep QSB. It does seem to be stronger than previous days, although the QRN level has also gone down I think. Befo
Dear Gary, LF Group, An image of 518kHz at 506kHz implies LO = 512kHz? You could change the LO frequency to 500kHz, although then you would not be able to receive signals on that spot frequency. You
Dear Laurie, Graham, LF Group, Currently getting good copy of G0NBD in MFSK4 mode on 503.0kHz Re other activity - I am still struggling here with my local noise problems. I am testing a two-antenna p
Dear Rik, LF Group, At the moment (2030utc), they are transmitting a CW beacon signal on 503.1kHz, apparently the same signal level as before. QRN is getting very heavy here. Cheers, Jim Moritz 73 de
Dear Richard, LF Group, I would suggest using an "umbrella" top-loaded vertical using a telescopic fibreglass mast. From experience, antennas with horizontal sections like inverted Ls or Ts have the
Dear David, LF Group, Thanks for the QSO on Sunday, and the details of the experiment. We started off with a reference antenna - A 9m vertical with a 5m top section ... the poor ground made it very i
Dear LF Group, Just worked G0MRF at 1705utc. Signal was 549 - apparently they are still working on the antenna, so might improve yet... Got a good report from them, so obviously receiving OK. Good lu
Dear Gary, LF Group, You are S5 here at the moment in a the rising QRN. Also can see G0NBD and OR7T attempting a QSO in MSK4 - Rik's signal is just about visible on the waterfall, but will have to wa
Dear Chris, LF Group, Looking at the circuit, there are not that many possibilities for varying gain with temperature. The NE/SA 602/612 devices should be quite stable with temperature - the Philips
Dear Marcin, LF Group, Now (1850utc) QRV on 137.7kHz for the next few hours Cheers, Jim Moritz 73 de M0BMU Hello! Is there anyone to sked 136kHz? Plise about LF sked to saturday (16 may 2009); in the
Dear LF Group, Usual good copy of SAQ here, with an unusually long broadcast regarding JND radio becoming an IEEE Milestone. Tuning up started around 0640utc, broadcasts at 0700, 0730, shut-down at 0
Dear LF Group, I intend to run the WSPR beacon again on 502.4kHz "dial frequency", 503.9kHz+/- RF out, from about 2100utc this evening. Any reports will be very welcome. Cheers, Jim Moritz 73 de M0BM
Dear Richard, LF Group, I am trying to model various aerial configurations for 500kHz using NEC. I have set the antenna 0.5m above ground as NEC2 does not like radials on the ground. I have used "rea
Any recommended transverter designs for LF? 73 Richard G3CWI Dear Richard, LF Group, You can see what I am using if you go to http://groups.google.com/group/uk500khz/files and download the file EER_T
Dear Richard, LF Group, 1) T antenna. Am I right in thinking that in the classical T configuration, the horizontal part of the aerial is only there to add capacity - i.e. it makes no contribution to
Dear Rik, LF Group, Nil seen here so far... mind you, I still am having local noise problems here. Cheers, Jim Moritz 73 de M0BMU dear all, I will run a short (10 minute) rtty test (23Hz shift) on 50
