To Dr. Harvey of Chippenham,The issue of adjacent channels is no longer relevant because the mechanism used for Freeview to transmit a multiplex uses thousands of low bandwidth carriers tightly packed together. This means that its use of the spectrum is almost rectangular with no leakage so no problem in packing in another one in right next door.I am also of the Chippenham area and get consistent 100% quality and ~45% strength on cha 48 and 49, something else must be wrong.If you still have the aerial from times when analogue TV existed you may want to change it for a wideband "log periodic" one combined with a masthead amp, this will future proof you for when the signals really leave the original band in 2019 and overall will give you better reception characteristics.Tim.
Saturday 14 May 2016 11:26PM
To Dr. Harvey of Chippenham,The issue of adjacent channels is no longer relevant because the mechanism used for Freeview to transmit a multiplex uses thousands of low bandwidth carriers tightly packed together. This means that its use of the spectrum is almost rectangular with no leakage so no problem in packing in another one in right next door.I am also of the Chippenham area and get consistent 100% quality and ~45% strength on cha 48 and 49, something else must be wrong.If you still have the aerial from times when analogue TV existed you may want to change it for a wideband "log periodic" one combined with a masthead amp, this will future proof you for when the signals really leave the original band in 2019 and overall will give you better reception characteristics.Tim.