You could check you are using the right transmitter at http://www.wolfbane.com/cgi-bin/tvd.exe?
Check you are getting all the other channels.
Digital TV is broadcast on specifc channels, like analogue TV, but instead of each channel being aoocated to one station, it is driven by a multiplexer, which divides the channel up between six or more stations.
Check out the stations in the list at http://www.unsatisfactorysoftware.co.uk/dtt/dtt.cgi
s the multiplexer.
If all the stations you are missing are on the same mutiplexer, you could be having problems with an analogue transmitter on the same channel adjusting the aerial may help
Check out analogue transmitters in your area using http://www.wolfbane.com/cgi-bin/tvd.exe?
Another useful site is http://www.ukfree.tv/starthere.php
Finally, keep your eye on Freesat (That's NOT Freesat from Sky) as this is due to start in the spring. Ultimately it'll give you free to air satellite TV without having to use a Sky box and you won't have to wait for the analogue TV switchoff before you get a better signal.
John
March 2008
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix dtt receivers.