Re: GB3MCB on 23 cms [3 Attachments]

John E. Beech

Tnx fer the info Ralph,
I can't normally hear the beacons from home ( Coventry) but found them useful when in
Scillies. On my way home now; stopped off in Devon to visit my sister.

de John G8SEQ

-------Original Message-------
From: Ralph Bird <>
Subject: Re: [ukmicrowaves] GB3MCB on 23 cms [3 Attachments]
Sent: Jul 13 '13 16:20

[Attachment(s) from Ralph Bird included below]

Hello John,

As far as I know, they do not use common frequency reference.
Each beacon is a completely seperate unit.

Couple of photos taken at the site in 2010

Ralph G4ALY

----- Original Message -----
SENT: Saturday, July 13, 2013 9:14 AM
SUBJECT: Re: [ukmicrowaves] GB3MCB on 23 cms

I haven't made an accurate measurement but the 6m beacon seemed slightly
off frequency last night. Do they all use the
same frequency reference? G8SEQ/P lsles of Scilly.

> -------Original Message-------
> From: Lawrence <[LINK:]>
> To: [LINK:]
> Subject: [ukmicrowaves] GB3MCB on 23 cms
> Sent: Jul 12 '13 14:40
> Has anyone checked the frequency of GB3MCB on 23 cms recently?
> For some time I have been looking for it without any luck. I assumed it
> was
> because it beams NE, which is sideways on to me, and that I use a
> low
> gain log periodic antenna. This morning I found it but it was not where
> thought it would be. The web sites that list it give the frequency as
> 1296.860
> MHz but my radio indicated 1296.845 MHz which was much lower than I had
> anticipated.
> My radio is the IC-910X and earlier this year I had replaced the
> oscillator with the optional high stability CR-293 (photos of this and
> the
> antenna are on my QRZ entry). I have not calibrated it yet but hope to
> able
> to do soon. I have acquired a Jupiter T GPS receiver and could use the
> ratio
> function on my counter to compare the 30.2 MHz with 10 kHz until I
build a
> circuit to give me 10 MHz.
> When I have compared my indicated frequency on 23 cms with others it is
> usually
> similar and within 1 kHz so I assume I am not too far out. The CR-293
> greatly improved the stability and so got rid of the drift which had
> annoying. That was the most important improvement that I had been
> for.
> 73, Lawrence GJ3RAX

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