Envelope-to: dave@picks.force9.co.uk
Delivery-date: Tue, 12 Jul 2005 19:44:06 +0100
Message-ID: <000701c58711$7d113280$c54d8351@w4o8m9>
From: "James Moritz" <james.moritz@btopenworld.com>
To: rsgb_lf_group@blacksheep.org
References: <E1DsNqW-00029M-KW@post.thorcom.com> <3.0.6.32.20050712143614.00a42e18@magma.ca>
Date: Tue, 12 Jul 2005 19:42:42 +0100
MIME-Version: 1.0
Subject: Re: LF:Rugby lines
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Dear Bill, LF Group,

Yes, the 63710 should be 67310 - the 32 digit result is courtesy of the
Windows calculator, but fortunately I used the right GRI for that....

Cheers, Jim Moritz
73 de M0BMU

----- Original Message -----
From: Bill de Carle <ve2iq@magma.ca>
To: <rsgb_lf_group@blacksheep.org>
Sent: Tuesday, July 12, 2005 7:36 PM
Subject: Re: LF:Rugby lines


> At 06:13 PM 7/12/2005 +0100, Jim Moritz wrote:
> [..]
> >Dear Dave, LF Group,
> >
> >The Rugby Loran lines are at frequencies of n x 1 / (2 x 63710us), or n x
> >7.4283167434259396820680433813698Hz (give or take), where n is an
integer,
> >and 63710us is the GRI of the Lessay chain. For this one, n is 18548, the
> >frequency is 137780.418957 to the nearest micro-hertz :-)
>
> When I did the above division on my inexpensive solar-powered calculator,
> I got 7.8480615 Hz, not 7.4283167 etc Hz.  Is this another case of can't
> see the forest for the trees or should the GRI be 6731 instead of 6371?
> I bet you took so much care to make sure you typed in the 32-digit number
> correctly you shifted the typo to the other number (2 places!), right?
>
> Bill VE2IQ
> now watch me have to eat crow :-)
>
>
>