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1. LF: Re: Technical details of CFH (137kHz) (score: 1): Author: "Dave Sergeant" <[email protected]>; Date: Sat, 23 Oct 1999 19:44:29 +0100; From Dave G3YMC Many thanks for the information on CFH obtained from VE1FTL by Alan. Now at least we know a little more about it. As Jon says it seems off the air at the moment (it would now be quite; /rsgb_lf_group-archives/html/rsgb_lf_group/1999-10/msg00166.html (9,746 bytes)
2. LF: Re: Technical details of CFH (137kHz) (score: 1): Author: [email protected]; Date: Sun, 24 Oct 1999 20:25:54 EDT; << I have done a quick calculation on a 200m loaded vertical using G4FGQ's program and this shows that such an antenna, assuming 50 ohms earth resistance, would have a radiation resistance of 13 ohms; /rsgb_lf_group-archives/html/rsgb_lf_group/1999-10/msg00171.html (10,007 bytes)
3. Re: LF: Re: Technical details of CFH (137kHz) (score: 1): Author: "Jean-Marc Huneault" <[email protected]>; Date: Mon, 25 Oct 1999 06:59:11 -0300 (ADT); Jon says the TX uses FSK. I remember noting earlier this year that at one time it was transmitting FAX (clearly identifiable as such to anyone who has heard FAX). Perhaps Jon has some information on; /rsgb_lf_group-archives/html/rsgb_lf_group/1999-10/msg00176.html (9,211 bytes)
4. LF: Re: Technical details of CFH (137kHz) (score: 1): Author: "Soegiono, Gamal" <[email protected]>; Date: Tue, 26 Oct 1999 09:59:06 +0100; Many thanks to Alan Melia G3NYK and John VE1FTL for the valuable details on canadian station CFH. Antenna systems designed for the frequency range around 150 kHz, composed of vertical mast 200-360m i; /rsgb_lf_group-archives/html/rsgb_lf_group/1999-10/msg00179.html (9,243 bytes)

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