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281. Re: LF: CW 477.7 kHz (score: 1)
Author: "Roelof Bakker" <[email protected]>
Date: Tue, 10 Oct 2017 21:46:57 +0200
Hello Joe, Excellent once more. 73, Roelof, pa0rdt The following section of this message contains a file attachment prepared for transmission using the Internet MIME message format. If you are using
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-10/msg00092.html (9,888 bytes)

282. Re: LF: CW 477.7 kHz (score: 1)
Author: "Roelof Bakker" <[email protected]>
Date: Wed, 11 Oct 2017 18:15:30 +0200
Hello Joe, The Kyoto Dst dropped overnight and propagation went down the drain. Still excellent aural copy your signal. On an other note, MF propagation from Japan to Europe has been good the last we
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-10/msg00111.html (10,382 bytes)

283. Re: LF: CW 477.7 kHz (score: 1)
Author: "Roelof Bakker" <[email protected]>
Date: Thu, 12 Oct 2017 21:57:32 +0200
Hello Joe, Propagation deteriorates further, it seems. 73, Roelof, pa0rdt The following section of this message contains a file attachment prepared for transmission using the Internet MIME message fo
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-10/msg00121.html (9,878 bytes)

284. Re: LF: CW 477.7 kHz (score: 1)
Author: "Roelof Bakker" <[email protected]>
Date: Fri, 13 Oct 2017 16:16:44 +0200
Hello Joe, Good signals early in the night, followed by an extended fading period and then a nice pre-dawn enhancement. The signal was 8 dB above the (quiet) band noise and aural copy was no problem.
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-10/msg00124.html (10,016 bytes)

285. Re: LF: CW 477.7 kHz (score: 1)
Author: "Roelof Bakker" <[email protected]>
Date: Sat, 14 Oct 2017 17:26:11 +0200
Hello Joe, The sun keeps playing havoc, the west to east path is heavily effected as is the path from the north. However, on 518 kHz, NAVTEX Penang, Malesia, over 10k km was received yesterday evenin
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-10/msg00132.html (10,624 bytes)

286. Re: LF: Monitoring 2190m WSPR (score: 1)
Author: "Roelof Bakker" <[email protected]>
Date: Thu, 26 Oct 2017 22:05:29 +0200
Paul, However I have no idea how that would compare to the powdered iron T50-2 normally used in this circuit. <<< I have sucessfully used T50-1 and T68-1 powdered iron toroids. The optimum frequency
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-10/msg00285.html (10,600 bytes)

287. LF: AA1A (score: 1)
Author: "Roelof Bakker" <[email protected]>
Date: Tue, 31 Oct 2017 13:03:27 +0100
Hello all, It has been a while since I looked at reception of WSPR 630m spots received here. I noted that since October 20 I have received AA1A a few hundred times and last night alone the figure was
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-10/msg00313.html (9,612 bytes)

288. Re: LF: RE: AA1A (score: 1)
Author: "Roelof Bakker" <[email protected]>
Date: Tue, 31 Oct 2017 16:51:55 +0100
Hello Nicolas, Thanks, that makes sense. 73, Roelof, pa0rdt
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-10/msg00316.html (9,626 bytes)

289. LF: Re: [rsgb_lf_group] - Funcube on 630M (score: 1)
Author: "Roelof Bakker" <[email protected]>
Date: Tue, 31 Oct 2017 16:58:07 +0100
Hello Joe, I guess you are plagued with intermod products caused by strong MW broadcast stations. The simplest solution is to use a low pass filter with a cutt off frequency of 520 kHz. This way, I h
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-10/msg00317.html (8,910 bytes)

290. LF: Re: [rsgb_lf_group] 477 OP8 VO1NA PA0RDT 600m OPERA 3994 km 07:15:02 (score: 1)
Author: "Roelof Bakker" <[email protected]>
Date: Sun, 19 Nov 2017 17:17:10 +0100
Hello Graham, Regarding the 10 dB signal strength difference, this are normal fading figures that can often be noticed on T/A signals. All night stable propagation is rare. See the attached overnight
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-11/msg00134.html (8,801 bytes)

291. Re: LF: Re: [rsgb_lf_group] 477 OP8 VO1NA PA0RDT 600m OPERA 3994 km 07:15:02 (score: 1)
Author: "Roelof Bakker" <[email protected]>
Date: Sun, 19 Nov 2017 22:17:54 +0100
Hello Joe, Your signal is already received here: 19:30    477 VO1NA Op8 1479,0 Hz -33 dB |-- 73, Roelof, pa0rdt
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-11/msg00136.html (9,979 bytes)

292. LF: Re: [rsgb_lf_group] Re:: 477 OP8 VO1NA PA0RDT 600m OPERA 3994 km 07:15:02 (score: 1)
Author: "Roelof Bakker" <[email protected]>
Date: Mon, 20 Nov 2017 09:51:34 +0100
Hello Graham, I am living in a sweet spot for T/A reception and am receiving Canadian NDB's every single day of the year. In fact propagation in July was much better than it is now. Some speak of the
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-11/msg00140.html (9,535 bytes)

293. Re: LF: Re: A robust session on 630-meters : K9FD (/KH6) -> LA2XPA and more... (score: 1)
Author: "Roelof Bakker" <[email protected]>
Date: Sun, 17 Dec 2017 11:39:49 +0100
Hello Rik, T/A propagtion from lower latitude NDB's is very poor at the moment, whilst reception from Nunavut is excellent. There was even a short opening around 10:00 UTC from Churchill at the other
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-12/msg00235.html (9,130 bytes)

294. Re: LF: 630m band activity. (score: 1)
Author: "Roelof Bakker" <[email protected]>
Date: Sun, 31 Dec 2017 21:24:22 +0100
Hello Joe, Excellent aural copy around 02:45 UTC and also a good read! graphic 73, Roelof Bakker, pa0rdt Middelburg, Netherlands JO11tm The following section of this message contains a file attachmen
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-12/msg00522.html (9,783 bytes)

295. Re: LF: 630m band activity. (score: 1)
Author: "Roelof Bakker" <[email protected]>
Date: Tue, 02 Jan 2018 17:32:43 +0100
Hello Joe, Last night was a little better and showed a short sunrise enhancement. 73, Roelof, pa0rdt The following section of this message contains a file attachment prepared for transmission using t
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-01/msg00030.html (9,306 bytes)

296. Re: LF: 630m band activity. (score: 1)
Author: "Roelof Bakker" <[email protected]>
Date: Tue, 02 Jan 2018 17:31:17 +0100
Hello Joe, New Year's night was static ridden. See the attachment. P.S. I am now using an ECO-Mini-Whip as reception antenna. Power consumption is a mere 35 mW (5V / 7mA) instead of 900 mW! Gain - 14
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-01/msg00031.html (9,578 bytes)

297. Re: LF: 630m band activity. WX in VO1 (score: 1)
Author: "Roelof Bakker" <[email protected]>
Date: Sun, 07 Jan 2018 11:45:24 +0100
Hello Joe, Last night was much better than the night before. 73, Roelof Bakker, pa0rdt The following section of this message contains a file attachment prepared for transmission using the Internet MI
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-01/msg00108.html (8,810 bytes)

298. LF: Re: : RE: [rsgb_lf_group] 477 op8 results for VO1NA last night (score: 1)
Author: "Roelof Bakker" <[email protected]>
Date: Sun, 14 Jan 2018 16:49:32 +0100
Hello Graham, Maybe, but propagation from that part of Canada collapsed after 05:00 UTC. See the attached plot of NDB QY-263, Sydney, CAN NS. 73, Roelof Bakker, pa0rdt The following section of this m
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-01/msg00199.html (9,674 bytes)

299. LF: Re: : RE: [rsgb_lf_group] 477 op8 results for VO1NA last night (score: 1)
Author: "Roelof Bakker" <[email protected]>
Date: Mon, 15 Jan 2018 11:08:35 +0100
Hello Graham, The answer to your question in regard to the difference in signal strength might be a new antenna that I am testing at the moment. It runs on a 6V gel cell battery and has a massive pow
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-01/msg00213.html (8,991 bytes)

300. Re: LF: excellent transatlantic propagagtion (score: 1)
Author: "Roelof Bakker" <[email protected]>
Date: Thu, 08 Feb 2018 19:37:09 +0100
Hello Joe, Your 12 WPM CW signal achieved good aural copy around 01:30 UTC. Propagation was a bit sketchy with deep fading. See attachment. 73, Roelof Bakker, pa0rdt The following section of this mes
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-02/msg00134.html (8,683 bytes)


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