Quote:
Originally Posted by Hornet
3rd time lucky Saturday?
So how often does picture freeze when watching freeview, I presume its not 100% perfect?
I'm beginning to think there maybe electrical interferance in my walls where cables are next to each other or is this not possible?
Freezing has decreased though but still 2 or 3 times an hour.
BBC2 analogue 100% fine since this am, no idea why as haven't retuned or touched anything...transmitter issue yesterday?
Is it very likely given 25DB amp and high gain aerial that I am too powerful?
One more thing I've rememberred is sometines on the analogue channels I'm getting white spark type flashes over the picture for a few minutes!
Cheers
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Done properly there shouldn't be any pixellation at all. It sounds to me like you've got a problem with electrical inteference possibly an earth loop problem. The white sparks on analogue is a dead giveaway.
If you can, turn off the central heating system for a few hours and the problem will probably disappear.
Presumably there is no power socket in your loft, hence the use of a 12v masthead.
You could try moving the PSU to another room, though you might need to swap a few cables on the amplfier if it only allows remote powering via one specific output.
What else is in your loft, nearish to the amplifier? Central heating / electrical stuff?
Now it could well be that this problem isn't with the aerial / amplifier and is down to the poorly screened cables in the walls picking up the inteference. If this is the case though they should say so and explain it properly.
The 25db masthead amplifier is a 2 stage amplifier and much more prone to picking up unwanted signals than a single stage although this isn't usually a problem.
Good luck on Saturday.