In article , Andrew Chesters
m wrote:

It sounds to me like you are suffering from "impulse" interference.
Caused by other appliances switching. Worst offenders in my house are
CH pump and the little man in the fridge who switches the light on. No
idea why these cause more problems than others though...

Usually two causes.

1) The use of an aerial that has no balun.

2) The use of non approved cable or connectors.




--
AJL Electronics (G6FGO) Ltd : Satellite and TV aerial systems
http://www.classicmicrocars.co.uk : http://www.ajlelectronics.co.uk