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Total 187 documents matching your query.

61. LF: SDR for 136k / 500k (score: 1)
Author: "John RABSON" <[email protected]>
Date: Fri, 28 Nov 2008 17:42:17 +0100
Jim, May I bother you with what may seem to be a trivial question? I am about halfway through assembling the circuit board for a Softrock Lite V6.2 with your mods for 136. I have come up against a pr
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-11/msg00052.html (8,959 bytes)

62. Re: LF: Signals on 136/7 (score: 1)
Author: "John RABSON" <[email protected]>
Date: Mon, 03 Nov 2008 20:54:55 +0100
I don't think so. According to last year's French callbook, there are no F2 three-letter calls. 73 John F5VLF
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-11/msg00081.html (8,946 bytes)

63. Re: LF: RE: SDR for 136k / 500k (score: 1)
Author: "John RABSON" <[email protected]>
Date: Sun, 30 Nov 2008 11:05:56 +0100
Chris, Mike, Many thanks. I intended to send directly to Jim, but forgot to change the To: field. Yes, the colours are as you describe. Regarding getting the polarity the wrong way round, in the mid-
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-11/msg00139.html (10,900 bytes)

64. Re: LF: RE: SDR for 136k / 500k (score: 1)
Author: "John RABSON" <[email protected]>
Date: Sun, 30 Nov 2008 11:09:25 +0100
That should be 25 x 10000 µF. Stay off the Beaujolais Nouveau. ** REPLY SEPARATOR **
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-11/msg00146.html (11,551 bytes)

65. Re: LF: QSO MODE (score: 1)
Author: "John RABSON" <[email protected]>
Date: Thu, 06 Nov 2008 18:15:32 +0100
A few points: Since its early days, amateur radio has been a broad pasture. Before the Second World War the RSGB had two main sections: Experimenters, and Transmitter & Relay (T&R), which reflected s
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-11/msg00283.html (11,994 bytes)

66. LF: Two-tone sig on 137.6ish? (score: 1)
Author: "John RABSON" <[email protected]>
Date: Sun, 30 Nov 2008 11:17:22 +0100
Lower tone is several dB stronger than the higher. John Rabson Radio F5VLF 58800 Cervon France JN17vg
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-11/msg00529.html (7,694 bytes)

67. LF: YXM up to 20dB over noise at 1406z (score: 1)
Author: "John RABSON" <[email protected]>
Date: Sat, 08 Nov 2008 16:36:05 +0100
John Rabson Radio F5VLF 58800 Cervon France JN17vg
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-11/msg00602.html (7,691 bytes)

68. LF: Unid marks on 137630 13dB over noise (score: 1)
Author: "John RABSON" <[email protected]>
Date: Wed, 31 Dec 2008 13:17:04 +0100
John Rabson F5VLF 58800 Cervon France JN17vg
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-12/msg00049.html (7,882 bytes)

69. Re: LF: QSB (score: 1)
Author: "John RABSON" <[email protected]>
Date: Tue, 30 Dec 2008 19:52:22 +0100
[ ... ] ? In the 1970s the REOU journal carried demands for higher power so that 'British ships could compete with the kW of John the Greek'. 73 de John F5VLF
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-12/msg00067.html (8,418 bytes)

70. LF: Battery chargers (NiCd and NiMH) (score: 1)
Author: "John RABSON" <[email protected]>
Date: Mon, 22 Dec 2008 10:40:13 +0100
Thank you everyone who replied, direct or via the reflector. The problem has been solved (and as a spin-off, Madame's cordless vacuum cleaner is now functioning again). Regards, John F5VLF
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-12/msg00210.html (7,653 bytes)

71. LF: F4DTL 20dB over noise on 137680ish (score: 1)
Author: "John RABSON" <[email protected]>
Date: Wed, 31 Dec 2008 13:14:50 +0100
F5VLF 58800 Cervon France JN17vg
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-12/msg00538.html (7,671 bytes)

72. Re: Why WSPR when you can SHOUT! was Re: LF: wspr (score: 1)
Author: "John RABSON" <[email protected]>
Date: Fri, 26 Dec 2008 09:56:42 +0100
** REPLY SEPARATOR ** One of my lecturers told me that in the 1960s the GPO still banned bugs for ship/shore from UK vessels. Seasons greetings. John F5VLF
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-12/msg00574.html (11,399 bytes)

73. Re: LF: Re: 500 acty (score: 1)
Author: "John RABSON" <[email protected]>
Date: Mon, 22 Dec 2008 22:55:17 +0100
I believe that in the Irish Republic, our fellow enthusiasts are officially described not as "Radio Amateurs" but as "Radio Experimenters". John F5VLF ** REPLY SEPARATOR **
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-12/msg00612.html (9,533 bytes)

74. LF: Battery chargers (score: 1)
Author: "John RABSON" <[email protected]>
Date: Mon, 15 Dec 2008 09:36:54 +0100
For some of my portable equipment I have been using NiCd cells. These are being phased out and it is much easier to get NiMH cells. Do I have buy new chargers or should I be able to use the NiCd ones
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-12/msg00689.html (7,672 bytes)

75. LF: Ferrite toroid cores using HEM series materials (score: 1)
Author: "John RABSON" <[email protected]>
Date: Thu, 29 Jan 2009 11:43:09 +0100
Maplin have been selling these but their paper catalogue does not seem to give detailed characteristics and doing an online search of their catalogue is not practicable as I am typically getting 14.4
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-01/msg00051.html (8,696 bytes)

76. LF: Cossor Ganging Oscillator 343 manual (score: 1)
Author: "John RABSON" <[email protected]>
Date: Fri, 16 Jan 2009 11:26:30 +0100
In sorted out some of my testgear, I have found the above document. Would anyone like it? The equipment itself is is long gone. 73 John F5VLF/G3PAI ** END FORWARDED MESSAGE **
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-01/msg00133.html (8,884 bytes)

77. Re: LF: Razor blade RX .... Try a Cohere? (score: 1)
Author: "John RABSON" <[email protected]>
Date: Wed, 07 Jan 2009 09:36:51 +0100
Oh the bandwidth! F5VLF
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-01/msg00222.html (8,977 bytes)

78. Re: LF: PSK CONTACT G4JNT - M0BMU (score: 1)
Author: "John RABSON" <[email protected]>
Date: Sun, 18 Jan 2009 18:45:26 +0100
1.9mhz - now what sort of signalling rate can you get on 160Gm? John F5VLF ** REPLY SEPARATOR **
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-01/msg00316.html (13,337 bytes)

79. Re: LF: 137 kHz wspr beacon (score: 1)
Author: "John RABSON" <[email protected]>
Date: Sat, 17 Jan 2009 19:56:37 +0100
Now 30 to 40 dB over the noise. John Rabson F5VLF 58800 Cervon France JN17vg ** REPLY SEPARATOR **
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-01/msg00393.html (9,182 bytes)

80. Re: LF: F4DTL 20dB over noise on 137680ish (score: 1)
Author: "John RABSON" <[email protected]>
Date: Thu, 01 Jan 2009 19:40:12 +0100
Thank you. I have corrected my RX calibration. John F5VLF ** REPLY SEPARATOR **
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-01/msg00467.html (8,479 bytes)


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