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61. Re: LF: 507.300khz signal (score: 1): Author: "Johan H. Bodin" <[email protected]>; Date: Tue, 18 Nov 2008 08:40:20 +0100; 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; /rsgb_lf_group-archives/html/rsgb_lf_group/2008-11/msg00515.html (10,421 bytes)
62. Re: LF: E field active antennas (score: 1): Author: "Johan H. Bodin" <[email protected]>; Date: Fri, 05 Dec 2008 21:26:23 +0100; 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; /rsgb_lf_group-archives/html/rsgb_lf_group/2008-12/msg00186.html (10,084 bytes)
63. LF: FWD: SAQ transmission Christmas Eve Dec 24 2008 (score: 1): Author: "Johan H. Bodin" <[email protected]>; Date: Mon, 15 Dec 2008 11:04:51 +0100; 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; /rsgb_lf_group-archives/html/rsgb_lf_group/2008-12/msg00253.html (8,541 bytes)
64. Re: LF: RE: Re: whisper (score: 1): Author: "Johan H. Bodin" <[email protected]>; Date: Wed, 17 Dec 2008 11:13:56 +0100; 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; /rsgb_lf_group-archives/html/rsgb_lf_group/2008-12/msg00287.html (11,349 bytes)
65. LF: M0BMU WSPR solid copy in Iceland (score: 1): Author: "Johan H. Bodin" <[email protected]>; Date: Wed, 17 Dec 2008 11:29:17 +0100; Jim, LF, I just checked www.wsprnet.org and found that TF3HZ had a solid copy of your 500kHz WSPR signal! 73 Johan SM6LKM; /rsgb_lf_group-archives/html/rsgb_lf_group/2008-12/msg00701.html (7,665 bytes)
66. Re: LF: RE: Re: whisper (score: 1): Author: "Johan H. Bodin" <[email protected]>; Date: Tue, 16 Dec 2008 22:52:06 +0100; 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; /rsgb_lf_group-archives/html/rsgb_lf_group/2008-12/msg00709.html (10,578 bytes)
67. Re: LF: WSPR - G0NBD (score: 1): Author: "Johan H. Bodin" <[email protected]>; Date: Thu, 29 Jan 2009 10:26:16 +0100; 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; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-01/msg00017.html (9,665 bytes)
68. Re: LF: Iceland AM-BC 189kHz last night: short summary (score: 1): Author: "Johan H. Bodin" <[email protected]>; Date: Mon, 19 Jan 2009 14:10:47 +0100; 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; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-01/msg00159.html (9,751 bytes)
69. LF: 600m WSPR (score: 1): Author: "Johan H. Bodin" <[email protected]>; Date: Mon, 26 Jan 2009 22:24:11 +0100; 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; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-01/msg00308.html (8,107 bytes)
70. Re: LF: WSPR does not work (score: 1): Author: "Johan H. Bodin" <[email protected]>; Date: Fri, 16 Jan 2009 14:07:00 +0100; Hi Andrey, maybe your receiver is set to LSB (reversed FSK shift)? 73 Johan SM6LKM --; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-01/msg00679.html (11,972 bytes)
71. Re: LF: G0NBD difficult to decode (score: 1): Author: "Johan H. Bodin" <[email protected]>; Date: Tue, 27 Jan 2009 10:02:30 +0100; 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; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-01/msg00768.html (9,524 bytes)
72. Re: LF: WSPR beacon on 136kHz (score: 1): Author: "Johan H. Bodin" <[email protected]>; Date: Wed, 14 Jan 2009 13:21:38 +0100; if (windy) use_a_kite(); else use_a_balloon(); 73 Johan SM6LKM --; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-01/msg01182.html (11,119 bytes)
73. WSPR on a PIC (was: Re: LF: Re: Re: WSPR 503.5) (score: 1): Author: "Johan H. Bodin" <[email protected]>; Date: Mon, 26 Jan 2009 20:23:14 +0100; 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; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-01/msg01196.html (11,786 bytes)
74. Re: LF: WSPR - a philosophical question. (score: 1): Author: "Johan H. Bodin" <[email protected]>; Date: Tue, 24 Feb 2009 08:23:29 +0100; Yes, of course... I was thinking of England but I wrote UK. Sorry... The latitude of your QTH is even a few degrees north of mine. 73 Johan SM6LKM; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-02/msg00013.html (9,811 bytes)
75. Re: LF: WSPR - a philosophical question. (score: 1): Author: "Johan H. Bodin" <[email protected]>; Date: Mon, 23 Feb 2009 22:42:10 +0100; Ha-ha! LOL! ROTFL! I agree but do expect a comment or two from the north-east part of the UK! ;-) 73 Johan SM6LKM; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-02/msg00042.html (9,573 bytes)
76. Re: LF: Wanted - non-random PN sequence generator - so Off Topic it shouldn't be allowed here! (score: 1): Author: "Johan H. Bodin" <[email protected]>; Date: Mon, 23 Feb 2009 10:17:55 +0100; 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; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-02/msg00426.html (10,277 bytes)
77. Re: LF: More WSPRing (score: 1): Author: "Johan H. Bodin" <[email protected]>; Date: Mon, 23 Feb 2009 21:52:07 +0100; Solid copy in JO67MR Andy, including the CW ID! 73 Johan SM6LKM PNG image; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-02/msg00432.html (8,759 bytes)
78. Re: LF: More WSPRing (score: 1): Author: "Johan H. Bodin" <[email protected]>; Date: Mon, 23 Feb 2009 22:38:12 +0100; 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; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-02/msg00452.html (9,660 bytes)
79. LF: About Loran (score: 1): Author: "Johan H. Bodin" <[email protected]>; Date: Fri, 13 Mar 2009 09:39:34 +0100; Peter DF3LP found a *very* interesting 306 page doctoral thesis about LORAN-C here: http://www.pelgrum.org/radionavigation/ 73 Johan SM6LKM; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-03/msg00431.html (7,566 bytes)
80. Re: LF: Lazy Man's CW made it to Venus and back (score: 1): Author: "Johan H. Bodin" <[email protected]>; Date: Thu, 26 Mar 2009 23:34:56 +0100; I didn't know it was an English saying/proverb! The swedish translation "Kasta p�rlor f�r svinen" is sometimes used in similar circumstances... 73 Johan; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-03/msg00472.html (10,922 bytes)

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