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Total 20 documents matching your query.

1. Re: LF: Noise from phone lines (score: 1)
Author: "Simon Lloyd-Hughes" <>
Date: Wed, 23 Jun 1999 15:30:56 +0100
Did you mention this to the EMC Commmittee? Although we are aware of many technologies that can cause problems if we do not know of specific ones we can not help. In many cases the developers of thes
/rsgb_lf_group-archives/html/rsgb_lf_group/1999-06/msg00128.html (11,530 bytes)

2. Re: LF: Bandplanning: QRS frequencies .... (score: 1)
Author: "Simon Lloyd-Hughes" <>
Date: Mon, 12 Jul 1999 16:07:52 +0100
What ever happens please keep it simple. I am answering your request to suggest a band plan for our small longwave band throught the reflector, since I believe that a discussion would help to come to
/rsgb_lf_group-archives/html/rsgb_lf_group/1999-07/msg00053.html (11,848 bytes)

3. Re: LF: Re: Class E RF amplifiers (score: 1)
Author: "Simon Lloyd-Hughes" <>
Date: Mon, 02 Aug 1999 15:55:31 +0100
There was a Class E 7MHz amplifier design in QST in early 1997. It was in two parts with practical design information. Hi all, I dug out a copy of an article by Nathan Sokal (Pres. of Design Automati
/rsgb_lf_group-archives/html/rsgb_lf_group/1999-08/msg00023.html (11,173 bytes)

4. Re: LF: Multiple tuned vertical (score: 1)
Author: "Simon Lloyd-Hughes" <>
Date: Tue, 24 Aug 1999 16:50:23 +0100
Is there an ISBN number for this? At 09:32 21/08/99 -0400, you wrote: Hello Chris, A mathematical (and practical) treatment of Multiple Tuning for vertical antennas can be found in: Radio Antenna Eng
/rsgb_lf_group-archives/html/rsgb_lf_group/1999-08/msg00154.html (12,151 bytes)

5. Re: LF: 73 kHz band, beacon test. (score: 1)
Author: "Simon Lloyd-Hughes" <>
Date: Mon, 06 Sep 1999 13:18:58 +0100
Roger. When will you be testing on Tuesday? At 15:03 03/09/99 -0400, you wrote: I shall be testing my beacon on 72.0 kHz (plus or minus about 100 Hz) between about 0700 Z and 0830 Z this Saturday and
/rsgb_lf_group-archives/html/rsgb_lf_group/1999-09/msg00015.html (8,797 bytes)

6. Re: Re: LF: re Toni's comments on the 7030 and filters (score: 1)
Author: "Simon Lloyd-Hughes" <>
Date: Sun, 03 Oct 1999 23:43:28 +0100
There is a simple circuit in this months Practical Wireless. if I understand well,you are receiving CW by ear, not by Spectrogram. For receiving CW by ears I found very useful a stereo processor, lik
/rsgb_lf_group-archives/html/rsgb_lf_group/1999-10/msg00021.html (9,436 bytes)

7. LF: Interference on 73 KHz and 136 KHz (score: 1)
Author: "Simon Lloyd-Hughes" <>
Date: Fri, 15 Oct 1999 10:10:50 +0100
It was nice to see so many enthusiasts at Windsor. Following the meeting I am interested in the possible interference that has been noted on the reflector especially in the UK.
/rsgb_lf_group-archives/html/rsgb_lf_group/1999-10/msg00119.html (7,783 bytes)

8. Re: LF: Receivers and power-line noise (score: 1)
Author: "Simon Lloyd-Hughes" <>
Date: Fri, 19 Nov 1999 18:22:01 +0000
The Elektor magazine always carries details at the back on emc measures to be taken on psu's. This may well have been mentioned before on this reflector, so apologies to those concerned if it's going
/rsgb_lf_group-archives/html/rsgb_lf_group/1999-11/msg00156.html (10,820 bytes)

9. LF: Generator (score: 1)
Author: "Simon Lloyd-Hughes" <>
Date: Wed, 15 Dec 1999 23:39:34 +0000
Has anyone any information on a Schomondl ND30M-B. I am trying to use one for 73KHz and 137 KHz.
/rsgb_lf_group-archives/html/rsgb_lf_group/1999-12/msg00071.html (7,493 bytes)

10. Re: LF: Sound cards/Spectrogram (score: 1)
Author: "Simon Lloyd-Hughes" <>
Date: Mon, 10 Jan 2000 12:33:51 +0000
Has anyone tried a Soundblaster 32AWE? 73! Petr, OK1FIG ____________________________________________________________________________ __________________________________________________________________
/rsgb_lf_group-archives/html/rsgb_lf_group/2000-01/msg00088.html (9,114 bytes)

11. LF: 73 KHz Closure (score: 1)
Author: "Simon Lloyd-Hughes" <>
Date: Wed, 03 May 2000 14:22:18 +0100
When is the band taken away? This e-mail, and any attachment, is confidential. If you have received it in error, please delete it from your system, do not use or disclose the information in any way,
/rsgb_lf_group-archives/html/rsgb_lf_group/2000-05/msg00033.html (8,671 bytes)

12. Re: LF: Visit in Boston, USA (score: 1)
Author: "Simon Lloyd-Hughes" <>
Date: Mon, 29 Jan 2001 09:18:13 +0000
There is an excellent store, Ham Radio Outlet in Salem New Hampshire approx 30km from Boston Centre just off Exit 1 of the I-93. They have an internet site There are a number of sh
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00087.html (9,387 bytes)

13. Re: LF: Visit in Boston, USA (score: 1)
Author: "Simon Lloyd-Hughes" <>
Date: Mon, 29 Jan 2001 09:18:02 +0000
There is an excellent store, Ham Radio Outlet in Salem New Hampshire approx 30km from Boston Centre just off Exit 1 of the I-93. They have an internet site There are a number of sh
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00088.html (9,223 bytes)

14. Re: LF: Need (score: 1)
Author: "Simon Lloyd-Hughes" <>
Date: Tue, 19 Jun 2001 15:49:36 +0100
If its the one with the unswitch preamp I believe I have. The main problem I had with mine was the bias transistor BD129 ( I think) going open circuit. This lead to distortion on the output. Only one
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-06/msg00125.html (8,964 bytes)

15. Re: LF: ZL-VE ERP? (score: 1)
Author: "Simon Lloyd-Hughes" <>
Date: Wed, 18 Jul 2001 08:38:54 +0100
Have you looked in the ARRL news sheet. There was some info in there but I suspect not enough. It is vital to have this sort of detail to make a useful comparison with what may be possible at 136kHz.
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-07/msg00084.html (9,809 bytes)

16. Re: LF: LF use in G Land (score: 1)
Author: "Simon Lloyd-Hughes" <>
Date: Thu, 20 Sep 2001 13:58:20 +0100
May I suggest that you contact the Radio Communications Agency. There is a trade magazine which appears here now and again. I Think its Called RFID. At the Rdaio Solutions 2001 6/11/2001-7/11/2001 (
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-09/msg00084.html (12,292 bytes)

17. Re: LF: Re: Carriers / TV QRM (score: 1)
Author: "Simon Lloyd-Hughes" <>
Date: Tue, 04 Sep 2001 12:01:45 +0100
Can I suggest that you get in contact with the RSGB EMC Committee. ( try their web site at RSGB.org.uk) There has been much information about interference from television switch mode supplies in the
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-09/msg00164.html (8,979 bytes)

18. Re: LF: Phone line RFI (score: 1)
Author: "Simon Lloyd-Hughes" <>
Date: Wed, 21 Nov 2001 10:36:21 +0000
May I suggest having a look on the rsgb emc web pages. They are linked from the site rsgb.org.uk At 20:59 20/11/01 -0000, you wrote: This is not probably much DX related and I really apologise for th
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-11/msg00245.html (8,723 bytes)

19. Re: LF: Request to any (relative) OTs out there ! (score: 1)
Author: "Simon Lloyd-Hughes" <>
Date: Fri, 04 Jan 2002 10:21:40 +0000
Andy, If you have the Technical Topics compendiums a number of circuits appear in them. There was also an article in Elektor I'm looking for the reference to the Huff-Puff stabilisation scheme, and i
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-01/msg00501.html (9,647 bytes)

20. Re: LF: RSGB Web site. - off topic (score: 1)
Author: "Simon Lloyd-Hughes" <>
Date: Tue, 12 Feb 2002 11:14:38 +0000
How about contacting the web master at RSGB HQ? Brandon the IT manager should be able to help.<br><br>At 10:19 11/02/02 EST, you wrote: <br>>>>><br><blockquote><?fontfamily><?paramarial><?smaller>Hel
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-02/msg00183.html (9,041 bytes)


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