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1. Re: 500 LF: RADCOM (score: 1)
Author: "Hugh_m0wye" <>
Date: Thu, 25 Oct 2007 17:00:30 +0100
It's probably worth pointing out that the archive CD's of RadCom seem to be available to Non-members from the RSGB shop, (on-line store) so you can get hold of past issues of RadCom even if you are n
/rsgb_lf_group-archives/html/rsgb_lf_group/2007-10/msg00003.html (15,854 bytes)

2. LF: Re: RADCOM (score: 1)
Author: "Hugh_m0wye" <>
Date: Thu, 25 Oct 2007 10:24:43 +0100
Hi Mal, I share your frustration at the lack of Component adverts - but I think the series of "Homebrew" articles by Eamon Skelton EI9GQ has been brilliant. If you look at a magazine like Dubus, the
/rsgb_lf_group-archives/html/rsgb_lf_group/2007-10/msg00376.html (12,463 bytes)

3. LF: Re: A bit of light reading (score: 1)
Author: "Hugh_m0wye" <>
Date: Thu, 15 Nov 2007 12:10:12 +0100
Careful ... the legislators may take you seriously ! But certainly the available bandwidth at lower frequencies needs to be widened to allow widespread use of phone on the 136kHz band. Hugh M0WYE htt
/rsgb_lf_group-archives/html/rsgb_lf_group/2007-11/msg00198.html (9,305 bytes)

4. Re: LF: Usefull BBC document , low frequency Ae design (score: 1)
Author: "Hugh_m0wye" <>
Date: Wed, 19 Nov 2008 11:06:31 +0100
Graham, Andy et al. Thankyou for bringing these to our attention. What a rich seam of technical information. Hugh M0WYE Looking at the list of BBC Publications ( http://www.bbc.co.uk/rd/pubs/whp/inde
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-11/msg00598.html (11,440 bytes)

5. LF: Re: TDA2003, TDA2030 for PA? (score: 1)
Author: "Hugh_m0wye" <>
Date: Wed, 25 Mar 2009 16:02:43 +0100
I successfully made a TDA2030 amplifier which i used for all my intial experimenting on 137kHz Photo http://www.m0wye.radiouk.com/lfamp.jpg The data sheet for this IC claims a bandwidth of 140kHz so
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-03/msg00121.html (10,152 bytes)

6. LF: Re: Re: energy saving bulbs (score: 1)
Author: "Hugh_m0wye" <>
Date: Mon, 09 Mar 2009 13:57:47 +0100
Peter and group, I don't know if this contributes to the original discussion, but I found this table which shows the relative efficencies of different types of lamp: The original is here: http://en.w
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-03/msg00456.html (15,674 bytes)

7. Re: LF: Siemens D2155 (score: 1)
Author: "Hugh_m0wye" <>
Date: Fri, 26 Jun 2009 11:44:48 +0100
Hi Mal, If your Microsoft Windows is the same as mine (XP or Vista) then when the mouse pointer is hovered over the small picture it will turn into a little magnifying glass and when you click it, it
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-06/msg00186.html (13,222 bytes)

8. LF: Re: WHITE PLAINS (score: 1)
Author: "Hugh M0WYE" <>
Date: Sun, 28 Jun 2009 00:36:40 +0100
I've got a record by them, it was in the charts about 1973. Hugh M0WYE -- Original Message -- From: mal hamilton To: rsgb Sent: Saturday, June 27, 2
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-06/msg00209.html (10,585 bytes)

9. Re: LF: Siemens D2155 (score: 1)
Author: "Hugh M0WYE" <>
Date: Thu, 25 Jun 2009 21:50:54 +0100
Hi Roelof and Nicolas, I have a manual, and your E-mail has spurred me on to finish scanning it and put it on my web site. you will find it here: http://www.qsl.net/m0wye/D2155/k2155man.htm It is a c
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-06/msg00251.html (11,893 bytes)

10. LF: Re: AF Amps at 136 (score: 1)
Author: "Hugh M0WYE" <>
Date: Sun, 18 Oct 2009 21:58:26 +0100
Hi Chris, I used an OMP 100W amp for my brief sortie onto 136kHz. I never blew up any FETs, but never managed to get more than 50W out of it either. Unless you want a linear mode go for the switching
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-10/msg00230.html (11,303 bytes)

11. LF: Re: Ferrite characteristics (score: 1)
Author: "Hugh_m0wye" <>
Date: Wed, 11 Nov 2009 13:57:32 +0100
Hi Peter, In the past I have wound a few turns aound the core and measured the Inductance. From this you can calculate the AL value, or "Inductance Factor" in nH per turns squared. I measured the Ind
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-11/msg00354.html (12,442 bytes)

12. LF: Inductor datasheets (score: 1)
Author: "Hugh_m0wye" <>
Date: Thu, 12 Nov 2009 10:22:29 +0100
While on the subject of ferrites and identifying them, Anglia have published a 176 page data book bringing together datasheets from various inductor manufacturers. It's free to download, as is their
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-11/msg00420.html (8,030 bytes)

13. LF: RE: Gas pipe (score: 1)
Author: "Hugh_m0wye" <>
Date: Wed, 30 Jun 2010 08:59:31 +0100
C-Scope International also make pipe and cable locating equipment - their website is here: http://www.cslocators.com/products/ 73 Hugh M0WYE Thank you Ed. This was not it but I'll have a look at it a
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-06/msg00170.html (9,774 bytes)

14. Re: LF: QRO / QRP (score: 1)
Author: "Hugh_m0wye" <>
Date: Tue, 1 Jun 2010 17:23:32 +0100
Thankyou Chris, and Simon, It was kind of you to take time out of your marking schedule to calculate that. If I was transmitting a signal I wouldn't consciously decide how often to transmit photons,
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-06/msg00195.html (13,439 bytes)

15. LF: Re: COIL WINDING THOUGHT (score: 1)
Author: "Hugh_m0wye" <>
Date: Tue, 8 Jun 2010 14:57:47 +0100
This method of winding increases the interwinding capacitance, and also lowers the breakdown voltage of the overall coil, because adjascent turns have a higher potential between them. When I wound my
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-06/msg00228.html (9,964 bytes)

16. LF: Re: RE: a cautionary tale..... (score: 1)
Author: "Hugh_m0wye" <>
Date: Wed, 2 Jun 2010 11:05:50 +0100
I agree with Jim, I've been following this reflector for the last eight years and the standard of discussion is far better than many other forums. 73 Hugh M0WYE -- Original Message -- From: "James Co
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-06/msg00376.html (9,920 bytes)

17. Re: LF: QRO / QRP (score: 1)
Author: "Hugh_m0wye" <>
Date: Tue, 1 Jun 2010 15:36:21 +0100
Chris and group, What an intriguing thought - building a village inside a photon. It reminded me about the article on Toroidal Antennas that Jim M0BMU drrew our attention to on 1st March. It containe
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-06/msg00762.html (11,464 bytes)

18. LF: Photovoltaic Installation (score: 1)
Author: "Hugh_m0wye" <>
Date: Fri, 24 Sep 2010 08:53:56 +0100
Greetings to the LF group, My neighbour informs me that she is intending to have photovoltaic panels installed on her roof, in a scheme where she gets free electricity (all subsidised by the governme
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-09/msg00209.html (10,938 bytes)

19. LF: Re: What has VLF to do with Toads & Earth Quakes ? (score: 1)
Author: "Hugh M0WYE" <>
Date: Sat, 15 Jan 2011 16:22:58 +0100
Dear Bufo Bufo and group, There are indeed some strange scientific papers about. It seems to me that it would be best to study links between VLF propagation and earthquakes, and between VLF propagati
/rsgb_lf_group-archives/html/rsgb_lf_group/2011-01/msg00716.html (11,785 bytes)

20. LF: Re: Advisory / Warning (score: 1)
Author: "Hugh_m0wye" <>
Date: Thu, 27 Jan 2011 16:31:27 +0100
If you had a few spare fluorescent tubes lying around you probably wouldn't have needed the torch - I understand Nicola Tesla illuminated his workshop in this way :-) 73 Hugh M0WYE Thought I'd better
/rsgb_lf_group-archives/html/rsgb_lf_group/2011-01/msg00723.html (11,008 bytes)


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