Installing an Ariel -? Does it make any difference (apart from self harder to drill) if...
Does it make any difference (apart from self harder to drill) if the walls are brick or breeze block. Is there any pretext why ariel cables should not be feed through cavity walls.
Answers: No problems, drill from the inside outwards, and form a drip loop on the outside, so that water can't acquire in, and trademark with silicone.
(PS Ariel is wash powder, an aerial is for a TV!!)
As long as you use a sealant (available from DIY store) on the outside hole, you should own no difficulties