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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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Chesterfield / Unstone Transmitter               OS Grid Ref SK 383 764

Note As work takes place on various digital transmitters (to prepare for the DSO)
 you may experience reception  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).

Chesterfield television transmitter is one of those which broadcast Digital but not C5. Originally an A group the addition of Digital TV has unfortunately made it a wideband.
Worse still it is Vertically polarised (it is a repeater off Emley Moor) which can contribute
to ghosting problems in poor signal areas. Significantly, MUX 1 (basically most of the
BBC1 programmes) is on channel 34 and therefore one should at least get that on an
A group antenna. In addition MUX 2 should be receivable in reasonable signal areas with many A group antennas. See Chesterfield`s graph.
Some sources classify Chesterfield as a wideband, but if you need all the signal you can
get and you really need a “high gain aerial” (which most people don`t....) the graph shows quite clearly that a Yagi18K or an XB16K is the way to go.
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Chesterfield TV transmitters frequencies/channel allocations.
Note how 5 of the 6 digital MUXES are on the same frequencies as Emley Moor and there are further co-channel issues with Sutton Coldfield.......

Back to the top of aerialsandtv.com Chesterfield transmitter.
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Chesterfield / Unstone transmitter at dusk.                               Picture Justin Smith (ATV)

Chesterfield TV transmitter “Up Close”                                     Picture Justin Smith (ATV)

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

we recommend for it.   DM Log    Log40    Yagi18K    XB16K

Note the channels out of the original A group of the transmitter, but also that MUX1 and MUX2 should be available to most people in reasonable signal areas.

(see Channel Allocation Guide below)

Some sources classify Chesterfield as a wideband, but if you need all the signal you can

get and you really need a “high gain aerial” (which most people don`t....) the above graph shows quite clearly that a Yagi18K or an XB16K is the way to go. It will be noted that for Chesterfield transmitters output both these aerials outperform wideband tribooms.

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We recommend the DM log for strong signal areas, the Log 40 for medium signal areas, the Yagi18K for poor signal areas and the XB16K for those with the most marginal signals. 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.

The TX is situated mid way between Dronfield and Chesterfield and is a steel RSJ spaceframe design. It can be seen on the hill top from the Dronfield By-Pass or from the

(ex Midland) Railway line which passes by in the valley. The former opened in 1975 and

the latter in 1870, doesn`t time fly......

Although it is of reasonable power for a repeater (at 2kW analogue and 40w Digital)

those living in Dronfield may find problems with it because the transmitter is attenuated in

a Northerly direction. Full output is to the SW with good signals in an arc from SE to NW. Worse still, 4 of the 5 Digital / Freeview MUXES are transmitted on the same channels as Emley Moor (see Chesterfield`s Channel Allocations) which can lead to co-channel interference problems as can the output of Sutton Coldfield..... The Channel Guide also includes the frequencies for most of the other transmitters receivable within Chesterfields coverage area, namely Emley Moor, Belmont, Waltham, Sutton Coldfield, Sheffield, Nottingham, Hasland and Brockwell. This information can be most useful for identifying the causes of co-channel interference or identifying alternative transmitters etc. The Channel Allocation Guide 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 September 2011. It has been confirmed by Ofcom that

Chesterfield will  stay a wideband at DSO, but the main 1st three PSB MUXES

will be receivable on an A group.

The BBC also puts out 400W of FM Radio Sheffield (at 94.7 MHz) from this TX.

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It should be remembered that because of Wideband antennas poor response at the

bottom of the band nobody should ever fit a “high gain” wideband on any K group

transmitter, e.g. Chesterfield.

If the site is in a poor spot a K group aerial should be used. On the other hand if the signal

is strong (or medium) then by definition it doesn`t need a “high gain” antenna anyway !

Under these circumstances a Log Periodic should be fitted instead.

See Chesterfield transmitter`s graph

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