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1. LF: Merry Christmas (score: 1)
Author: David Bowman <[email protected]>
Date: Mon, 25 Dec 2017 13:21:49 +0000
Merry Christmas all. FYI     AA1A - G0MRF   JT9 QSO on 475kHz  at 00:40  23/12/17  (-26 both ways) 73 David G0MRF
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-12/msg00364.html (8,950 bytes)

2. LF: 630m - Goodbye 2017 (score: 1)
Author: David Bowman <[email protected]>
Date: Wed, 27 Dec 2017 23:50:10 +0000
Hi everyone. Should we all make an effort to have some QSOs on 630m before the end of the year? Saturday 30th December seems like a good date. A weekend but not new years eve. Perhaps we could try to
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-12/msg00409.html (8,307 bytes)

3. Re: LF: RE: 630m - Goodbye 2017 (score: 1)
Author: David Bowman <[email protected]>
Date: Thu, 28 Dec 2017 18:18:54 +0000
Excellent idea, given me the incentive to sort out my MF station   with best regards     Jim   Dr. Jim Cowburn G7NKS     IO92ub   Biggleswade  UK   Details on QRZ.com   From: owner-rsgb_lf_group@bla
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-12/msg00434.html (14,160 bytes)

4. Re: LF: RE: 630m - Goodbye 2017 - G7NKS experience and kit (score: 1)
Author: David Bowman <[email protected]>
Date: Fri, 29 Dec 2017 17:21:10 +0000
Hi David   Chris G3XIZ can always copy me as can Dennis M0JXM.   I might get down to the wilds of Hitchin with MOFMT too!   Looking at the weather its a bit blowy today, but I may venture out and re
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-12/msg00471.html (35,728 bytes)

5. LF: 630m band activity. (score: 1)
Author: David Bowman <[email protected]>
Date: Fri, 29 Dec 2017 17:30:32 +0000
It was a nice surprise to work 7 stations on 630m last night.  Thanks to DF8UO   JT9 DL6RCN  FT8 G0VQH   FT8 OR7T      FT8 LA3EQ    FT8 DG3LV    JT9 DF6SM   JT9 I hope anyone with a transmitter can m
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-12/msg00472.html (8,476 bytes)

6. LF: JT9 CQ (score: 1)
Author: David Bowman <[email protected]>
Date: Sat, 30 Dec 2017 21:23:38 +0000
4 stations calling CQ in JT9 on 475kHz Including EA1FBU 73 David
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-12/msg00503.html (8,266 bytes)

7. LF: Goodbye 2017 (score: 1)
Author: David Bowman <[email protected]>
Date: Sat, 30 Dec 2017 22:58:14 +0000
Despite mislaying about 6dB of  ERP due to overnight heavy rain and wind, I managed to complete QSOs with: OR7T   G3KEV  DL6TY  DK6XY  G4GIR  GM3YXM     all on FT8 DF6UO  DL6RCN   EA1FBU   DF6SM  and
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-12/msg00506.html (8,760 bytes)

8. Re: LF: Great conditions and first QSO (score: 1)
Author: David Bowman <[email protected]>
Date: Mon, 8 Jan 2018 16:27:26 +0000
Hi Paul. Idea number ????      If your amplifier is oscillating above MF, then you may be able to tame it by using a series capacitor and resistor between drain and gate. This will apply frequency de
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-01/msg00124.html (10,609 bytes)

9. Re: LF: 630m Beacon WSPR G0MRF ! (score: 1)
Author: David Bowman <[email protected]>
Date: Wed, 10 Jan 2018 23:56:15 +0000
Thanks. Looks like Dimension 4 stopped running. Regards David On Wed, Jan 10, 2018 at 12:10 PM, F1AFJ <[email protected]> wrote: Hello Dave , Clock of your beacon are fault ! 73 Jean-Pierre f1afj  jn06
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-01/msg00156.html (13,095 bytes)

10. Re: LF: Softrock RX divider IC problem, unexpected frequency out (score: 1)
Author: David Bowman <[email protected]>
Date: Fri, 26 Jan 2018 15:06:07 +0000
Hi Chris. It may be worth going back to the oscillator and making sure the frequency there is what you expect. Could be that the divider is working fine, but the input to it is shifting around. 73 Da
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-01/msg00353.html (12,923 bytes)

11. LF: 475kHz TA (score: 1)
Author: David Bowman <[email protected]>
Date: Mon, 29 Jan 2018 13:54:46 +0000
Hi. Saw a very nice peak in signals last night on 630m. One WSPR transmission at 05.32 was received by: N1BUG,  W1IR,  KA1R,  K3MF, N3FL  K4LY/P  W4BCX and ZF1EJ. Also nice to see LA3EQ calling CQ on
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-01/msg00415.html (8,381 bytes)

12. Re: LF: MF/630M (score: 1)
Author: David Bowman <[email protected]>
Date: Sun, 4 Feb 2018 23:46:39 +0000
Hi Paul I had a similar exchange with Bob WA1OJN a couple of weeks ago. Here's what I said about QRSS, but I agree, JT9 should be possible although I think you probably need -26. If you want to let m
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-02/msg00036.html (13,189 bytes)

13. Re: LF: VLF Transmissions from Spacecraft (score: 1)
Author: David Bowman <[email protected]>
Date: Tue, 6 Feb 2018 13:57:30 +0000
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-02/msg00087.html (24,491 bytes)

14. Re: LF: Re: [rsgb_lf_group] NO3M QSO MF/630 (score: 1)
Author: David Bowman <[email protected]>
Date: Thu, 8 Feb 2018 09:42:01 +0000
Hello Mal, congrats on both QSO's. I got one copy by AA1A around 23 UTC, but had to go QRT at midnight UTC (not retired yet, I had to get out of bed at 05:30 UTC). Tomorrow I have a day off, so if c
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-02/msg00116.html (15,836 bytes)

15. LF: Re: Website (score: 1)
Author: David Bowman <[email protected]>
Date: Thu, 22 Feb 2018 17:00:23 +0000
Service Unavailable HTTP Error 503. The service is unavailable. Just wanted to make sure you knew about this.  Let me know if the problem is on my end. 73 Tim KB2MFS
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-02/msg00442.html (10,635 bytes)

16. Re: LF: Re: Can an air cored LPF inductor have as high a "Q" as a toroidal wound one? (score: 1)
Author: David Bowman <[email protected]>
Date: Sun, 11 Mar 2018 12:41:23 +0000
Hi Chris. I had that problem too. - See: http://www.g0mrf.com/decca.htm Eventually I had to remove a T225-3 in the low pass and replace it with 2 stacked (superglued) T200-2. That should work well at
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-03/msg00074.html (13,484 bytes)

17. Re: LF: Important question on LF QSOs (score: 1)
Author: David Bowman <[email protected]>
Date: Fri, 23 Mar 2018 13:07:11 +0000
Hi Paul. I believe historically this has been acceptable. The first amateur signal to cross the Atlantic on 136kHz was on 10th Sept 2000.  That was high power at the EU end with an antenna about 200f
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-03/msg00246.html (11,931 bytes)

18. Re: LF: First MF transmission from Oscar LU1DOW (score: 1)
Author: David Bowman <[email protected]>
Date: Fri, 8 Jun 2018 08:55:38 +0000
Hi MF   While there is only residual activity in north hemisphere, we are aproaching winter solstice in south hemisphere   Oscar, LU1DOW, confirms his first QRSS transmissions were successfully rece
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-06/msg00024.html (12,803 bytes)

19. Re: LF: Transmitting on MF (score: 1)
Author: David Bowman <[email protected]>
Date: Sat, 9 Jun 2018 23:28:17 +0000
HI TO ALL ! Today saturday I will start transmitting from 20:00 to 04:00 UTC on 475,000 - QRSS30, posibily on sunday too, depending on the next rains. Thank you. 73 ! Oscar - LU1DOW
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-06/msg00055.html (11,539 bytes)

20. Re: LF: Is anyone else unable to log in to wspr.net?? (score: 1)
Author: David Bowman <[email protected]>
Date: Thu, 14 Jun 2018 12:22:18 +0000
Hi Chris. It's not just you.....I've not been able to get into it this morning either. Perhaps when the US is 'up and about'  it will come back to life. 73 David On Thu, Jun 14, 2018 at 12:06 PM, Chr
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-06/msg00102.html (11,063 bytes)


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