Sheffield / Crosspool Transmitter

Note, due to the new phenomenon of MUXICAL chairs you may experience problems with certain MUXES disappearing. First try rescanning your TV / set top box, do it manually if possible. If this fails to sort it check on transmitter work or call the reception advice phone numbers.
Also see basic digital fault finding

700MHz clearance is due at Crosspool on the 5th Feb 2020, but there will be no change (excl MUXES 7 & 8 which are actually due to be switched off ! ), and the “Local” channel moving from 55 to 35.

Sheffield transmitter (Crosspool) thumbnail 250H L5 L5 kB

Sheffield television transmitter (sometimes known as Crosspool) was opened in 1967 and is possibly the one used by most people around Sheffield. Unsurprisingly the tower 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". Its exact location is off Lydgate lane and it is next to a Police TX mast. The height is 52m and the RSJ spaceframe construction it is similar to many others all over the country, which is unsurprising because it was a standardised design, a BICC type 152 to be precise. It was built by British Insulated Callender’s Cables (or B.I.C.C) who were responsible for much of the infrastructure built in this country from 1945 up to the 1980s. The company is still going but now but called Balfour Beatty.
Ofcom quote Sheffield’s maximum population coverage as being nearly three quarters of a million, but that includes households which may well be on another transmitter with overlapping coverage.

Crosspool is vertically polarised and is a repeater (or relay) off Emley Moor, that is to say it receives its signal from the latter then rebroadcasts it. Since digital switchover in 2011 Sheffield has been - effectively - a K group, or wideband. When (just) analogue was being transmitted it was originally an A group. Those in weak signal areas are better off with a K group (e.g. our XB10K) as it will work better than a wideband, see Sheffield’s graph. Note that the main three PSB MUXES are receivable on an original A group aerial.
Digital switchover occurred at Sheffield in Aug 2011.

For Sheffield we recommend the DM log for strong signal areas, the Log36 for medium signal areas, and the Yagi18K or XB10K for poor signal areas, the latter aerial being particularly well suited to loft mounting. The XB16K is for those with the most marginal signals. The dimensions and test performance of the aerials are on the relevant buy pages.

Sheffield transmitter's channels

For the most up to date MUX to channel allocations etc put this postcode S10 5GL into the Freeview checker.
Also see Yorkshire region Freeview transmitters.

Sheffield transmitter's power and channels Feb 2020 on 697W L10

From the start of digital (in 1998) then up to 2004 Sheffield transmitted all 6 MUXES at 50W.
The first 4 MUXES were increased to 100W between 2004 and the 2011 switchover

There is one ”Local” MUX allocated to Sheffield, on CH35, which is in the K group. It has been used for the “Sheffield Live TV” (a local station) since the 23 Sept 2014. This channel is also transmitted from Grenoside transmitter (since the 5 Feb 2020) on CH31.

Crosspool radiation pattern post DSO 500 Sq L5 64kB

Sheffield transmitter’s post DSO radiation pattern. Note how the transmitter puts out more power to the east, and how the pre DSO restriction to the SSW is no longer present. [link]

Radiation pattern graphic courtesy of Mike Dimmick.

For Sheffield’s frequencies see its channel allocation guide. This also includes the same information for other transmitters receivable within Sheffield’s coverage area and this can be very useful for identifying alternative transmitters. The Channel Allocation Guides can be very useful in the diagnosis of co-channel interference problems and 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.

External Links

Sheffield / Crosspool Transmitter Page on MB21
Sheffield / Crosspool Transmitter Page on Wikipedia

Sheffield transmitter (Crosspool) 501H L5 L10 42kB

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Sheffield / Crosspool transmitter. Apparently it’s also known as Tapton Hill transmitter, but I’ve never heard anyone in the aerial trade refer to it by this moniker.

Incidentally the TX isn’t really in someone’s back garden, not quite anyway !

Sheffield transmitter (Crosspool) from Ringinglow 531W L5 kB

View of Crosspool transmitter looking NE from Ringinglow. The television TX is one the right of the two masts on Tapton Hill. 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 : graph of its transmissions against the gain curves of the aerials we recommend for it
[link]

Sheffield transmitter channels v aerial gain curves 530H L5 PNG

The dotted lines are MUXES 7 & 8 (Both only have a small audience and are due to be switched of between 2020 & 2022)

Sheffield’s channels in relation to the UHF TV band and the gain curves of the aerials we recommend for it.

DM Log     Log36     Yagi 18K     XB10K      XB16K

It can be seen from the graph that the three PSB MUXES can still be received on an A group aerial.

Also see other relevant K group curves.

Sheffield transmitter's channel allocations

For the most up to date MUX to channel allocations etc put this postcode S10 5GL into the Freeview checker.
Also see Yorkshire region Freeview transmitters.

The frequencies given are for (most) digital MUXES, for analogue channels deduct 3MHz.

[link]
Sheffield and co-receivable transmitters Freeview channels Mar 20 on 90% L20 630W