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1. LF: MF activity from Uto lighthouse next weekend (score: 1)
Date: Sun, 10 Aug 2014 08:41:17 +0000
Hello The international lighthouse and lightship weekend is next weekend, August 16-17. The Top Radio Club OH1AH will be travelling to Utö island (KO09QS) to activate the lighthouse there and like la
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-08/msg00050.html (12,580 bytes)

2. LF: OH1AH/LH report and comments (score: 1)
Date: Tue, 26 Aug 2014 12:10:23 +0000
Hello, LF I'm back after the trip to Utö and other vacation travelling. First our thanks to all that participated in the band activity or sent reports. Our apologies to those that tried hard but that
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-08/msg00183.html (10,820 bytes)

3. Re: LF: 474 KHz RTTY (score: 1)
Date: Wed, 15 Apr 2015 18:51:05 +0000
Hello Fausto, LF You have most likely heard RMP / Kaliningrad naval base, they run RTTY on 474 kHz from time to time. Messages usually end with "RMP" sent in CW (or maybe actually keying the RTTY ton
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-04/msg00113.html (12,747 bytes)

4. Re: LF: 474 KHz RTTY (score: 1)
Date: Wed, 15 Apr 2015 18:58:43 +0000
Confirming very monotonous RTTY right now on 474 kHz. Good signal here using a low horizontal dipole cut for 9 MHz into IC-R75 = strong ;-) BR Paul-Henrik, OH1LSQ Vaasa, KP03SD Quoting
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-04/msg00114.html (13,384 bytes)

5. Re: LF: 474 KHz RTTY (score: 1)
Date: Wed, 15 Apr 2015 19:33:13 +0000
Hello again Fausto, I have been listening to 473.3 kHz for a while but can only hear BIA. I don't have my MF TX set up and there is a 10 GHz omni slot antenna with downconverter (modified PLL-locked
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-04/msg00116.html (14,728 bytes)

6. Re: LF: Re: USB stereo soundcard, CHEAP!? (score: 1)
Date: Fri, 05 Jun 2015 06:53:50 +0000
Hallo Stefan, Have a look at this specific product ("3D Sound" in transparent blue plastic case), there are plenty sellers on the "bay" in DE:
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-06/msg00063.html (14,896 bytes)

7. Re: LF: Re: USB stereo soundcard, CHEAP!? (score: 1)
Date: Fri, 05 Jun 2015 08:49:30 +0000
Hello Mauro, Thanks for pointing out the missing stereo-capability of the MIC input. I had overlooked this completely since my application does not require stereo and I only feed a mono signal to the
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-06/msg00065.html (15,953 bytes)

8. Re: LF: Re: USB stereo soundcard, CHEAP!? (score: 1)
Date: Fri, 05 Jun 2015 09:04:40 +0000
Replying to myself... I tried using "line-in" as a search parameter, since line-in should be stereo by default. This product promises "mic/stereo line-in" in the specifications, and is small+ reasona
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-06/msg00066.html (17,212 bytes)

9. Re: LF: Gamma spectroscopy (off topic) (score: 1)
Date: Fri, 05 Jun 2015 22:11:45 +0000
Hello Markus, and others interested. Briefly, my PC / soundcard -based gamma spectroscopy setup is as follows: - Two self-constructed scintillation detector heads, one using a Russian/USSR 18 x 40 mm
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-06/msg00074.html (18,679 bytes)

10. Re: LF: Active E field antenna versus T antenna for LF/MF reception (score: 1)
Date: Fri, 18 Sep 2015 18:02:45 +0000
Same here... I get the attack page warning. Using latest Firefox 40.0.3 Paul-Henrik OH1LSQ DJ8WXs page referred to below is reported by my system to be an attack page. John F5VLF On 18 Sep 2015, at 1
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-09/msg00076.html (12,761 bytes)

11. Re: Re[2]: LF: Do mains toroidal transformer cores have any use at LF / MF? (score: 1)
Date: Sat, 03 Oct 2015 15:51:11 +0000
Hello, 18 V + 18 V = 36 V Just use two transformers with series secondaries to get close to the "magic" 40 V Paul-Henrik, OH1LSQ Hello Stefan and Hugh, OK, thanks Stefan and Hugh, I don't think they
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-10/msg00026.html (10,924 bytes)

12. Re: LF: Good propagation on MF (score: 1)
Date: Sun, 04 Oct 2015 17:01:52 +0000
Hello Fausto, Happy to see the spot was noted. RX conditions here are quite noisy (man made QRM) but you were easily readable. I used a Mini-Whip 10 m AGL into my old JRC NRD-91 RX. The TX setup is s
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-10/msg00034.html (13,695 bytes)

13. Re: LF: Windows compaible QRSS TX software? (score: 1)
Date: Sat, 17 Oct 2015 13:30:11 +0000
Hello, "Run as Administrator" seems to be needed to get it running under Windows 7. Could not try if it handles the serial port correctly since I have none on my Win 7 machine. I have used the same s
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-10/msg00191.html (11,262 bytes)

14. Re: LF: TX Toroid Material (score: 1)
Date: Sat, 17 Oct 2015 18:50:05 +0000
Hello Ken, For transformers I have used Amidon -77 ferrite material successfully on 136 and 472 kHz. Same goes for Ferroxcube 3F3 ferrite material. For inductors in filters or chokes the Amidon -2 ir
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-10/msg00218.html (12,619 bytes)

15. Re: LF: Random Grimeton question (score: 1)
Date: Sat, 14 Nov 2015 13:58:38 +0000
Hello Chris, LF Yes, there is an amateur radio station at the same premises. The callsign is SK6SAQ. I did not pay too much attention to this fact when I visited SAQ some years ago so I lack better d
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-11/msg00316.html (9,428 bytes)

16. Re: LF: GM4SLV? (score: 1)
Date: Fri, 08 Jan 2016 09:09:50 +0000
Hello Roger, LF Did you try the address on this page? BR Paul-Henrik, OH1LSQ Quoting Roger Lapthorn <>: Anyone know what has h
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-01/msg00134.html (9,181 bytes)

17. Re: LF: 33 Hz QRM (score: 1)
Date: Thu, 17 Mar 2016 14:59:11 +0000
Hello John, Johan, LF 16 2/3 Hz should probably be 16 1/3 Hz, one third of 50 Hz as John pointed out. Here in OH-land we use 50 Hz for the railways but during my EE studies, the SM-land railway QRG w
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-03/msg00245.html (13,278 bytes)

18. LF: Email for DJ6CB (score: 1)
Date: Mon, 08 Aug 2016 23:30:55 +0000
Hello LF I had a very pleasant CW QSO tonight on 472.2 kHz with Dix / DJ6CB near Bremen. I'd like to share some more info with him than was possible given the static and signal levels we were facing.
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-08/msg00039.html (9,302 bytes)

19. Re: LF: AW: Email for DJ6CB (score: 1)
Date: Tue, 09 Aug 2016 08:17:19 +0000
Thanks Uwe! I will give this a try. The conditions (OH-SP and OH-DL) last night appeared pretty good for the time of year. Less static and stronger signals than usual. BIA-474 and SA-474,5 had a very
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-08/msg00042.html (11,152 bytes)

20. Re: LF: AW: Email for DJ6CB (score: 1)
Date: Tue, 09 Aug 2016 08:59:24 +0000
LF It seems that is bouncing as "alias does not exist". More suggestions are welcome, or we have to wait for better MF condx :-D BR Paul-Henrik, OH1LSQ Quoting : Thanks Uw
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-08/msg00044.html (11,751 bytes)

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