Do they work?
I recently purchased a Hitachi C32W40DTN.
I get a superb reception 99% of the time with an indoor ariel the only time i get interference is when the odd car out of all the passing traffic will cause the signal to screw up for a couple of seconds. Its very annoying when i'am recording a film
Would a ferrite ring sort this out if so how many would i need?
I also have a access to a shared ariel its fine during the day but during the evening the signal deteriorates (I guess this is due to more people using the ariel) Hence i use my indoor one but would rather use the outdoor as it has to sit on top of the telly

Would a booster combined with ferrite rings solve this, although i've heard reports of boosters not working to well with onDigital receivers.
ta,
__________________