Grantham / Waltham

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Grantham / Waltham

Postby deiraq » Tue Jan 10, 2017 7:26 pm

Hi Does anyone know what ATC frequencies are retransmitted from Grantham in Lincolnshire - presumably from the Waltham on the Wolds TV transmitter mast five miles south west of Grantham. Thanks. :smiles:
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Re: Grantham / Waltham

Postby milly » Tue Jan 10, 2017 8:30 pm

There are several TX sites local to there and the NATS site is not the same one as the idiot-box one.

May or may not be accurate*: http://www.air.radiouk.com/page38.html

*spelling certainly not too good
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Re: Grantham / Waltham

Postby Minus1 » Tue Jan 10, 2017 10:47 pm

Definitely:
123.95 Shanwick
124.6 London Info East
131.125 London Control
133.8 Scottish Control
I didn't have time to stop long when I passed by in 2014, so may be more.

It's near Waltham on the Wolds, on the A607; the "Grantham" label is a misnomer.
It's not the TV mast, NATS have their own mast.
52°49'28.56"N 0°47'54.84"W
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Re: Grantham / Waltham

Postby milly » Wed Jan 11, 2017 1:23 am

As an aside, for anyone wanting to know the locations of the transmitter sites NATS produced gis and kml output which shows the 'protected' area (the area they will automatically object to things like wind turbines being built) around each site. The sites aren't shown as a 'point' but put a pin at the centre of the circle....

http://www.nats.aero/services/informati ... ment-maps/
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Re: Grantham / Waltham

Postby Minus1 » Wed Jan 11, 2017 9:28 am

Very interesting for all kinds of reasons.

The High Buston site in Northumberland isn't shown at all. Is it no longer used for civil ATC?

The reported site at Rhu Stafnish on the Kintyre peninsula isn't shown. Explains why I couldn't detect any signals there some years ago.

There is more than just a VOR at St Abbs, Lands End, and Midhurst.

There is more than just a radar tower at Eaglescott in Devon.

The reported site on Anglesey is at Mona, not Valley, which explains why I never detected any strong ATC signals at Valley!

Some sites have just one circle centred on the transmitter site, some have a second or third circle which is offset somewhat. I wonder if this indicates some directional transmission/reception?
The most offset is Preston, and indicates some direction towards Dublin, which seems understandable.
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