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Re: LF:Rugby lines

To: [email protected]
Subject: Re: LF:Rugby lines
From: "James Moritz" <[email protected]>
Date: Tue, 12 Jul 2005 19:42:42 +0100
Delivery-date: Tue, 12 Jul 2005 19:44:06 +0100
Envelope-to: [email protected]
References: <[email protected]> <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
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 <[email protected]>
To: <[email protected]>
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 :-)





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