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A.T.V   (Aerials and Television) est. 1994
419 Langsett Rd
Hillsborough
Sheffield
S6 2LL
Tel : 0114 285 4254
© 2008 Justin Smith A.T.V
All Rights reserved
Free P&P for orders over £100, Online or by Phone
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Sheffield / Crosspool Transmitter              OS Grid Ref SK 324 870

Note As work takes place on various digital transmitters (to prepare for the DSO)
 you may experience problems, e.g. with certain MUXES disappearing.
First try rescanning your set top box and if this fails to work check on Transmitter work  
or phone reception advice on 08700 100 123 (BBC) or 0844 881 4150 (ITV).

Sheffield television transmitter (sometimes known as Crosspool) was opened in 1967
and is possibly the one used by most customers in this area. Unsurprisingly the TX can
be seen from much of the City as it was erected where it could (re)broadcast to the greatest area on "line of sight". It`s exact location is off Lydgate lane and it is next to a Police TX mast. With a height of around 50m and an RSJ spaceframe construction it is similar to many others all over the country.
If a site had similar signals from both Crosspool and Emley Moor we would tend to use
the latter because Crosspool is Vertically polarised which can make it more prone to ghosting in poor signal areas. Furthermore in order to receive C5 and Digital / Freeview it
is necessary to use a wideband aerial, see Sheffield transmitter`s graph
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Sheffield / Crosspool transmitter.

Apparently It`s also known as Tapton Hill, but I`ve never heard anyone “in the trade” refer to it by this moniker.

 

Incidentally the TX isn`t really in someone`s back garden,

not quite anyway !

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“That`s a tight fit missus”,

but not really..... It`s just a trick of the perspective.

 

What`s particularly interesting about this shot is that a house right next to the transmitter is actually on Emley Moor !

Nothing could give a more perfect demonstration that distance to the TX is often

a relatively unimportant consideration !

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View of Crosspool transmitter looking NE from Ringinglow. Close examination of the picture will reveal Drax power station on the horizon (to the left of the TX) and that`s nearly forty miles away !

Sheffield`s channels in relation to the UHF TV band and the gain curves of the aerials

we recommend for it.   DM Log    Log40    XB10WB    XB16WB

Note the channels out of the original A group of the transmitter, but the fact that MUX1 should be receivable, see Channel Allocations Guides.

The graph below illustrates Sheffield`s channels in relation to a Yagi18K which is an alternative aerial. The K will work a bit better than most widebands but will not pickup analogue Channel Five, though of course C5 is available on Freeview anyway.

Post DSO all channels will be within the compass of our K groups aerials.

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Sheffield`s Pre DSO Channel Allocations (above)

 

Sheffield`s Post DSO Channel Allocations (below), apart from its other uses this guide shows clearly that Sheffield will remain a wideband / K group after DSO.

Note the gaps in the table below for channels 31 to 35, 37, 39 to 40 and 63 to 68, they`re reserved for “other uses”....

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We recommend the DM log for strong signal areas, the Log 40 for medium signal areas,

the XB10WB for poor signal areas and the XB16WB for those with the most marginal signals. An alternative is the Yagi 18K. The dimensions and test performance of the antennas can be found on the relevant tables.

The prices of the aerials are on the Sales page.

It should be remembered that the local news on Calendar (i.e. Calendar South) is only available off Crosspool. Belmont transmits Calendar East and Emley Moor the Leeds

based local news. This fact can be used to confirm which transmitter (TX) you are on.  

Crosspool is a repeater (or relay) off Emley Moor, that is to say it receives its signal from

the latter then rebroadcasts it. The TX was originally an A group broadcasting the four analogue channels at 5kW. In 1997 C5 was added out of band and at half power.

Finally, Digital is broadcast at 50W per MUX. It should be bourne in mind that 50W

Digital power is equivalent to far more than 50W output on analogue. Many people with an

A group aerial may find they can pick up MUX1 (the main BBC channels) because it`s on channel 39 which is only just out of band, the others will require a new aerial, see graph.

The TX puts out more signal in an Easterly direction than towards the West and C5 and Digital are attenuated in a S / SW direction so as not to interfere with the local Totley repeater, the latter can cause co-channel interference to the Crosspool digital signal to some unlucky people in the Bradway area though a rather more common problem involves two of the MUXES off Belmont.

For Sheffield`s frequencies see its Channel Allocations Guides at the foot of the page

for before and after the DSO. These also include the same information for other transmitters receivable within Sheffield`s coverage area and this can be very useful for identifying causes of co-channel interference and also alternative transmitters.

The Channel Allocation Guides can also be invaluable if you are trying to find

a spare channel for a modulated output (e.g. for a Sky box or CCTV system) to be added

to your TV setup/distribution system without suffering from co-channel.

DSO is due to occur in May 2011 and it has been confirmed by Ofcom that

Sheffield will  stay a wideband (or K group), but the main 1st three PSB MUXES

will be receivable on an A group aerial. Post DSO those in weak signal areas will

have the opportunity to use a K group (e.g. our Yagi 18K) which will work better than a wideband even on MUX6 (on CH49), despite this is not technically being within the K

group.