I am a local aerial installer and I am trying to find out if the mynyth machen transmitter may of been the problem I came across today at a customers house being that it is using the same frequency's as pontypool.(SFN). I had line of site to machen and line of site for pontypool. The aerial system is new and has been working perfectly with S/D but when a new H/D freeview tv was fitted there were no hd channels on mux29.. The mux looked fine using my promax explorer meter with a signal power reading of 55db but still no h/d. The only way I could get a h/d programme was to realign the aerial to wenvoe but it is a much weaker signal with only 43 db on mux 47 but it did work with stable pictures, but I am anticipating a call back in the summer to increase the pole size and maybe the aerial due to leaves growing on the trees which the aerial is now looking towards.
Hope you may shed some light on the problem, and has there been simular probs in other parts of the country with S.F.N transmitters.
Thursday 1 March 2012 8:12PM
Hi,
I am a local aerial installer and I am trying to find out if the mynyth machen transmitter may of been the problem I came across today at a customers house being that it is using the same frequency's as pontypool.(SFN). I had line of site to machen and line of site for pontypool. The aerial system is new and has been working perfectly with S/D but when a new H/D freeview tv was fitted there were no hd channels on mux29.. The mux looked fine using my promax explorer meter with a signal power reading of 55db but still no h/d. The only way I could get a h/d programme was to realign the aerial to wenvoe but it is a much weaker signal with only 43 db on mux 47 but it did work with stable pictures, but I am anticipating a call back in the summer to increase the pole size and maybe the aerial due to leaves growing on the trees which the aerial is now looking towards.
Hope you may shed some light on the problem, and has there been simular probs in other parts of the country with S.F.N transmitters.
Wayne