Hillsborough
Sheffield
S6 2LL
All Rights reserved
Main Page List
Tel : 0114 285 4254
Chesterfield / Unstone transmitter at dusk.
Chesterfield TV transmitter “Up Close”.
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 XB10K XB16K
Note that the “original A group curve” is that for post 1995 aerials, when the A group was extended up to CH37 from CH34. Thus the response curve for aerials fitted prior to this date would be about 3 channels down. 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.
For Chesterfield we recommend the DM log for strong signal areas, the Log 40 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 can be found on the relevant tables.
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 “high gain” 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.
Chesterfield Transmitter OS Grid Ref SK 383 764
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 TV / set top box (do it manually if possible), but if this fails to work check on transmitter work or call the reception advice phone numbers. Also see basic digital fault finding.
DSO occurred at Chesterfield between the 10 and the 24 of Aug 2011.
Chesterfield (sometimes called Unstone) television transmitter was built in 1971. It is vertically polarised and is a repeater off Emley Moor. The transmitter was originally an A group but with the advent of Digital TV Chesterfield is now a K group (or wideband). See Chesterfield`s graph.
The tower 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-
Ofcom quote Chesterfield`s maximum population coverage as being about 145 thousand, but that includes households which may well be on another transmitter with overlapping coverage.
Chesterfield transmitter is attenuated in a North Western direction.
Full output is to the SW with good signals in an arc
from SE to NW.
Radiation pattern of Chesterfield (post DSO), graphic courtesy of Mike Dimmick
Chesterfield`s 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 alternative transmitters etc. The Channel Allocation
Guides can be very useful in the diagnosis of co-
DSO occurred in 2011 (between the 10 and the 24 of Aug).
Chesterfield`s transmission power is 400W on all MUXES apart from MUX 4 (the HD MUX), which is 800W. Pre switchover it was only 40W.
Although the transmitter is now a K group the three PSBs are still available off an original A group aerial (see Chesterfield`s graph).
Chesterfield has no interleaved spectrum channels allocated to it but there is a possibility of 2 or 3 more MUXES being transmitted between CHs 31 and 37, all of which can be picked up by a K group (or wideband) aerial
External links
Chesterfield transmitter page on MB21
Chesterfield Transmitter page on Wikipedia
Digital UK Chesterfield transmitter
Chesterfield TV transmitters frequencies/channel allocations.
Note the co-
Some post switchover MUX allocations (particularly CHs 61/62 and 49/50) may well be changed due to the 800MHz clearance.
We are more than willing to give advice to those actually purchasing from us. Could those only seeking information please just find the answer somewhere on this site, or ring an aerial installer local to them, or call the reception advice phone numbers.
If you`ve found this site informative and, hopefully, interesting as well,
please help us increase the number of people reading it.
