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Re: LF: WOLF - U.K./EU Help Needed

To: [email protected]
Subject: Re: LF: WOLF - U.K./EU Help Needed
From: Bill de Carle <[email protected]>
Date: Mon, 27 Dec 2004 14:11:12 -0500
In-reply-to: <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
At 06:56 PM 12/27/2004 -0000, John, WD2XES wrote:
At some point in the next week, I'd like to try a WOLF beaconing session,
with the hope that it could be copied across the pond. This can't be done in
the 137.78 kHz "watering hole" due to the bandwidth required. If anyone is
interested in trying to receive it, I'll need some guidance about the choice
of frequency. Ideally, there should be a couple of Hz clear of Loran (or
other constant-frequency signals)on each side.

To date, only Jim Moritz (with a much better transmitting setup than mine)
has made the crossing with WOLF. This was in March, 2001, and there has been
no follow-up. This is the only text-based mode thus far with weak signal
capability similar to QRSS60.

Any volunteers or advice would be appreciated.
WOLF uses BPSK at MS100, so any carriers which are at exact multiples
of 10 Hz away from the nominal frequency will be orthogonal, hence
notched out.  Conversely, any signals at odd multiples of 5 Hz from
the nominal carrier frequency will interfere most severely and should
be avoided.

Bill VE2IQ



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