Woody wrote:
You say that Ken has line of sight to Crosspool but from which
direction? Crosspool has directional signals to avoid
interference from other sites. Maybe he should be using a
different transmitter?

Without giving away personal details, his flat is on the south
side of his block with a line of sight west-south-west straight
up Upperthorpe (not Upperthorpe Road, the road called Upperthorpe)
towards Crosspool, 1.5m Google Walking distance.

Failing that, a trip to the local MP surgery may invoke a letter

People keep coming to me with these things because I used to be
the local councillor and "Jonathan knows TV things" having been
a Channel 5 retuner doing the jobs too complicated for the
swathes of electricians and decorators that made up the majority
of the retuners back then.

JGH