In article , John
Rumm writes
Andy Hall wrote:

Requirements vary quite a bit within a given locality depending on the
immediate surroundings. A store is only going to be aboe to say
which they generally sell.

This will show you:

http://www.megalithia.com/elect/terrain.html

Good old program writ by Andy Talbot but very simple and doesn't take
into account the losses involved. For those of a technical bent and who
wouldn't be, and for the waydio hamsters here this prog by Roger Coude
is the dogs doodahs for this sort of thing

http://www.cplus.org/rmw/english1.html


For digital TV there is a usefull reception predictor he

http://www.wolfbane.com/cgi-bin/tvd.exe

(you can get your OS grid reference from www.streetmap.co.uk)

CT100 cable is certainly recommended for DTTV because the signal
levels are substantially lower than the analogue channels. Cheap TV
coax is not appropriate for DTTV for this reason, because it has poor
loss characteristics with frequency and is susceptible to
interference.

Good advice, also make sure you use a few joins as possible as well. Use
F-Connectors on everything you can rather than the old Belling-Lee style
TV Co-Ax plugs,

Well do yer know I haven't yet seen a telly or a DTV box with an F
connector on, do they exist?...


--
Tony Sayer