anolog interferance

[handyman 44]

hi been to look at three tvs today all in different locations all with the same symtoms horizontal lines from top to bottom not tram lines . it looks like the resolution is poor . a bit like looking at one of those toy tvs that u had to wind up that kind of effect but horizontal. mostly on bbc1 ch 62 on tacolnstone norfolk. any ideas anyone.

 

[Llew]

It's that time of the year - tropo interference (out- of - area channel cross- modulation).

Llew

 

[rolfw]

These are most of the common ones.

But certainly sounds like atmospherics as Llew suggests.

 

[handyman 44]

is there any thing that can be done to prevent it

 

[Llew]

Not if the interference is co-channel.

Eastern and Southern areas of the UK are more prone to this problem, being near to the usual source of interference - continental transmissions using similar frequencies in the UHF/VHF bands.

Llew

 

[handyman 44]

ok thanks i tried a higher gain aerial and no amplification and there was a improvment many thanks