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41. Re: LF: QRPP TX (score: 1)
Author: "John Sexton" <[email protected]>
Date: Fri, 12 Oct 2001 01:55:48 -0700 (PDT)
Hi Walter, Ko, Steve, Dave, The mystery deepens. Some initial confusion about whether it was Walter's test signal, but now we know it was not, I shall monitor 137.0 +/- over the next few days and try
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-10/msg00243.html (9,772 bytes)

42. Re: LF: ZL6QH & access to 136 (score: 1)
Author: "John Sexton" <[email protected]>
Date: Fri, 12 Oct 2001 01:44:51 -0700 (PDT)
Great news Bob! Presumably the 5 watts you mention is the upper limit permitted? If we, in Europe, can get directional antennas pointed in the right direction, we can almost certainly manage at least
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-10/msg00244.html (9,441 bytes)

43. LF: Re: Random letters on 137 kHz (score: 1)
Author: "John Sexton" <[email protected]>
Date: Thu, 11 Oct 2001 11:08:43 -0700 (PDT)
Hi Dave, By chance, I came across a very unsteady slow morse signal on about 137 kHz around 17.50 UT apparently sending random letters. The frequency was varying so much on Argo, that I wasn't sure w
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-10/msg00255.html (10,144 bytes)

44. VLF: TECH: Re:IMAGE Radio Plasma Imager (score: 1)
Author: "John Sexton" <[email protected]>
Date: Thu, 29 Nov 2001 02:34:21 -0800 (PST)
Hi All, I listened/watched with Spectran on 15kHz, for the IMAGE Radio Plasma Imager satellite on 21/24/27th, but nothing seen at all. Thanks to Peter G8AFN, I eventually tracked down a more informat
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-11/msg00027.html (10,817 bytes)

45. Re: LF: Re: 73kHz Beacon (score: 1)
Author: "John Sexton" <[email protected]>
Date: Wed, 21 Nov 2001 09:29:54 -0800 (PST)
Well done guys! John, G4CNN I did copy Laurie's 72.401 kHz transmission last night, with parts of and without recognizable characters. The best copy was from 0022-0052 and from 0452-0522 Z. For some
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-11/msg00223.html (9,494 bytes)

46. Re: LF: IMAGE Satellite Experiment IMAGE Satellite Experiment (score: 1)
Author: "John Sexton" <[email protected]>
Date: Wed, 21 Nov 2001 09:24:50 -0800 (PST)
Hi All, Having gone to the trouble to find out when to listen for these transmissions, I thought I would share the results with those who might be interested to listen for the transmissions on VLF an
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-11/msg00224.html (12,081 bytes)

47. Re: LF: "Discussion" and the amateur radio spirit (score: 1)
Author: "John Sexton" <[email protected]>
Date: Tue, 20 Nov 2001 08:59:13 -0800 (PST)
Hi Kevin, Here, Here! Actually though, you seem to have been away, during a period of quite low "flak level", which regrettably seems to have returned. My solution for what it is worth, is to rigouro
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-11/msg00262.html (12,911 bytes)

48. Re: LF: ZL6QH 136 tests (score: 1)
Author: "John Sexton" <[email protected]>
Date: Sun, 04 Nov 2001 02:02:19 -0800 (PST)
Bi Bob, These are good frequencies for me and worked well for Larry's transmissions last season. The Luxembourg effect simply appears as white noise spots, which cause no problem. The Window to Europ
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-11/msg00409.html (9,744 bytes)

49. LF: Signal on 136.0 (score: 1)
Author: "John Sexton" <[email protected]>
Date: Thu, 01 Nov 2001 01:27:34 -0800 (PST)
Hi Walter, Nothing listed, but there is an IMP on 136.04: 2xDCF49-DCF42 sounds like DBF39. John, G4CNN At 15:47 31/10/01 Wednesday, Brian wrote:>>Hi Walter, I have just finished putting up a 6m squar
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-11/msg00431.html (9,333 bytes)

50. LF: Re: 7FSK (score: 1)
Author: "John Sexton" <[email protected]>
Date: Fri, 21 Dec 2001 10:44:47 -0800 (PST)
Hi Andy, This game is too easy. Also would be better if the message were a bit more festive. Couple of drawbacks: 1) No word framing, so can be 180 degrees out of sync. 2) Not very robust to knockout
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-12/msg00193.html (8,179 bytes)

51. LF: RE: ZL6QH (score: 1)
Author: "John Sexton" <[email protected]>
Date: Mon, 17 Dec 2001 02:14:42 -0800 (PST)
Hi All, Despite my best efforts, nothing seen of ZL6QH here in southern England. I think the fact that there is little or no dark path is working against us here. Congrats to John VE1ZJ on receiving
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-12/msg00319.html (8,264 bytes)

52. Re: LF: Spark Transmission (score: 1)
Author: "John Sexton" <[email protected]>
Date: Wed, 12 Dec 2001 09:56:00 -0800 (PST)
Hi Andy, Yes I saw that too. Shame we appear to have missed it. Although the source of the RF is spark, presumably it can still be filtered and fed to a tuned antenna, so perhaps the frequency can be
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-12/msg00389.html (9,528 bytes)

53. Re: LF: Re: [Lowfer] ARGO capture question (score: 1)
Author: "John Sexton" <[email protected]>
Date: Sat, 08 Dec 2001 10:11:36 -0800 (PST)
Hi Alberto, With both Spectran and Argo capture works fine with Win95 here. I turn off the screen saver, centre the pic, move the cursor outside the window and then power off the screen and leave the
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-12/msg00433.html (9,624 bytes)

54. Re: LF: Mains hum (score: 1)
Author: "John Sexton" <[email protected]>
Date: Sat, 08 Dec 2001 10:07:35 -0800 (PST)
Hi Walter, I think the problem is with the computer. Here I use little audio transformers (I have several made up in boxes) to isolate the rx from the computer. It does make a big difference, but I s
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-12/msg00434.html (10,762 bytes)

55. Re: LF: IMAGE satellite (score: 1)
Author: "John Sexton" <[email protected]>
Date: Tue, 04 Dec 2001 11:20:01 -0800 (PST)
Hi Alex, Nothing seen here using 2 metre loop N/S into pre-amp and AOR7030, despite looking on all favourable occasions, using Spectran with long integration times. The frequency you quote is 38Hz hi
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-12/msg00478.html (9,359 bytes)

56. Re: LF: Re: Notes on virus protection (score: 1)
Author: "John Sexton" <[email protected]>
Date: Mon, 03 Dec 2001 11:04:17 -0800 (PST)
Hi Alberto, I do the same and no problems to date, touch wood. John, G4CNN An even better one is not to retrieve e-mails with Microsoft software. Agent from www.forteinc.com is a first class safe new
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-12/msg00489.html (9,043 bytes)

57. Re: LF: ZL DX Tests 1 Dec (score: 1)
Author: "John Sexton" <[email protected]>
Date: Sun, 02 Dec 2001 02:11:07 -0800 (PST)
Hi All, Congrats to W4DEX for his success. I continued monitoring with Argo using 120 second dots until 20.30 on saturday the 1st, so well after local dusk, but saw nothing identifiable as from ZL. T
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-12/msg00519.html (8,813 bytes)

58. LF:ZL DX tests 1 Dec (score: 1)
Author: "John Sexton" <[email protected]>
Date: Sat, 01 Dec 2001 04:08:21 -0800 (PST)
Hi All, I used Argo to record the spectrum around the ZL6QH frequencies last night, but nothing seen of their signals. The pair of "twisters" that we saw last season were very visible at 137789.90 an
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-12/msg00540.html (8,908 bytes)

59. Re: Re: LF: Jason Tests (score: 1)
Author: "John Sexton" <[email protected]>
Date: Wed, 23 Jan 2002 08:17:29 -0800 (PST)
Hi Jim, I too saw your signal with Jason v0.92 last night. Of course it was perfect at this range so there didn't seem much point in giving a report. Like you I saw nothing of IK2DED, but that might
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-01/msg00137.html (11,004 bytes)

60. Re: LF: Digital Sine Generators (score: 1)
Author: "John Sexton" <[email protected]>
Date: Tue, 22 Jan 2002 08:28:41 -0800 (PST)
Hi Klaus, I have been trying to understand your scheme and find that: 1) The Chinese Remainder Theorem is not necessary, since the scheme will work even if the divisions are not co-prime. What you ar
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-01/msg00172.html (15,020 bytes)


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