


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 !

“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 !

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.


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”....

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-
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-
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-
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.