Hi Rik, you may wish to try these: http://mailman.qth.net/mailman/listinfo/lowfer http://www.lwca.org/ http://www.kc3ol.dynip.com/forums/index.php the Lowfer mailing list is very active, KC3OL's foru
Andy, I don't think the helical shape of the element will have any significant impact on performance unless the frequency is approaching half wave resonance of the helix itself (by half-wave resonanc
SAQ TRANSMISSION ON CHRISTMAS EVE DECEMBER 24TH 2008 There will be, as before, a transmission with the Alexanderson 200 kW alternator on VLF 17.2 kHz from Grimeton Radio/SAQ on Christmas Eve, Wednesd
Hello Rik, Some information can be found here: http://physics.princeton.edu/pulsar/K1JT/WSPR_Announcement.TXT In addition to the "WSPR-only" program, the WSPR mode is also available in the new WSJT7
Correct, and, according to Joe K1JT, a "FSK tone accuracy" of 0.1Hz or so is enough to not compromise performance too much (FSK tone spacing is ~1.46Hz). The QRP minded can easily achieve this accura
Dear Jim, LF, that is a clear evidence of a soundcard sampling rate error. I am quite sure that all timing in the WSPR software is derived from the sampling frequency and, if memory serves me, the WS
You can have more of it at www.ruv.is when the condx are down :-) They do QSL! I sent an e-mail report with a short mp3 soundclip and got a nice QSL in return via snail mail. The 189kHz station is so
Gentlemen, solid copy in JO67MR! -- 2050 -10 3.2 0.503899 0 M0BMU IO91 30 2056 -19 2.5 0.503869 0 G4JNT IO90 23 -- The antenna is a horizontal dipole for 80m (not even in "strapped feeder vertical mo
I too saw a quite strong signal last night which didn't decode. It was around 503.97 kHz and almost as strong as M0BMU, who was perfectly audible most of the time. There was no "banana effect" on the
Hi Andy, you don't have to reinvent the whole wheel. You may find some useful pieces in the file mjb002.zip at: http://web.telia.com/~u33233109/ Message, timing calibration, DDS frequency/shift, TX p
Hi Andy, Joe K1JT did something similar in v0.6 of the WSPR software. From the release notes: "3. A better randomizing algorithm for deciding when to transmit. (The method used in v0.5 was "too rando
Hmm... I don't know Andy, my local environment is very quiet at the moment but it could also be a trick of the ionosphere... My aerial tonight is far from optimal on 600m. It is a horizontal dipole f
I didn't know it was an English saying/proverb! The swedish translation "Kasta pärlor för svinen" is sometimes used in similar circumstances... 73 Johan