I do i tune my tv to improve signal strength

Signal strength... not all tuners are created equal. Improve signal strength or try an LG.

Hi,

You need to find the channel again via tuning.

Check the orientation of the antenna. Try to rotate it, and see whether the signal strength varies. If the signal strength is too weak, digital channels will show many problems. Try a signal booster. Contact any service technician. http://electronicshelponline.blogspot.com/

You might have more than one transmitter. Some TV's etc only store a certain number of channels and have a max amount!. When weaker transmitters are present sometimes the memory of the TV will only store the stronger signals first from these weaker sites, with the two BBC channels being too weak to be detected.
The solution is to do a manual search on the transmitters you know are very strong. For example if channel 43 has strong signal you would search on that. The auto search will start at 21 and work it's way to 69. But if your area transmitter with the strongest signals is high up the scale the weaker transmitters will be selected first!

Test the signal strength using analogue tv mode and teletext page 284. If this shows no issue open up the TV tuning menu and use 'Manual Tume' until the missing channel shows on the screen and then Save.

Usually, with this problem, it's due to low signal strength. Digital TV needs a good quality DTV antenna. GOOD QUALITY cables and connectors are also a good idea. If you live in a low signal strength area, u may also need an amplified antenna.

Fisrt check that the aerial connector going into the TV is OK.
The UK is in the process of switching off the analogue channels and reassigning to digital TV. This means that the signal strengths of various transmitters are getting stronger and channels are moving around to different frequencies. Try retuning the digital TV stations. If this does not work then try an external DTV box to see if the TV is at fault or it is a bad signal on the aerial.

When you are auto tuning the system will not store a channel which is week by its standard ( at least 60% signal strength ) This done to avoid grainy picture and hissy sound.
You can go into manual tuning and store it.

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