On 2/21/2014 10:43 AM, David.WE.Roberts wrote:
OpenSignal looks good - gives direction and strength of signal and rates
both voice and data.

Antennas seems to rely on a (possibly old) list of antennas rather than
direct detection.

RealSignal seems to be more of a signal strength and quality meter - good
for establishing if you have a poor signal and checking variation over
time. No mapping obvious - oh,hang on, found it.

Results - Antennas and RealSignal both show the same map and the same
location of masts (if I am reading the display correctly).

OpenSignal give me direction of signal and a location of the antenna on a
Google map which dies in with the direction pointer and is the local fire
station. So credible.

Of the three, I would try OpenSignal first.

Thanks - I'll check that out.