They would be measuring signal strength.
If you are in line of sight to the towers, anywhere should be fine. If not,
hunting around for the best signal strength is a good enough idea. Also,
look at your neighbours. If you see a pattern as to where they are located
on their houses, a good idea to maybe follow suit. I've installed about 6
antennas at various places I've lived at in my life with good results, and
never had a signal meter. The TV is a good signal meter

Good quality cabling (like quad coax and crimp rj connectors) help too.
"(Pete Cresswell)" <> wrote in message
news:...
> Rabbit ears aren't doing the job anymore and I'd like to get a rooftop
> antenna
> installed.
>
> My daughter had one put on and the guy walked around on the roof with some
> sort
> of meter, selecting what he said was the best location.
>
> Went down to the local Radio Shack, and they took issue with that story -
> saying
> that location on the roof should be irrelevant as long as there is
> line-of-sight
> to the transmission towers.
>
> After a number of years fooling around with rabbit ears, I know for sure
> that
> the location of those antennae definately matters: good signal in one
> place,
> poor signal five feet away.
>
> So what's the real answere for rooftop antennas: Just fasten it to the
> nearest
> chimney, or use some device to select the best spot?
> --
> PeteCresswell