I have written a page that finds the best local TV transmitters (this
uses Google Maps v2, I am currently trying to adapt it to v3) ...
http://www.macfh.co.uk/JavaJive/AudioVisualTV/TerrestrialTV/TerrestrialCalculator.html
It works as follows
1: Create a list of all transmitters within 100km sorted by distance.
2: Choose up to the five nearest relays (sub-transmitters) and the
five nearest main transmitters.
3: For each look up the transmission powers from my server and
attenuate them for distance.
4: Discard any whose signals are too weak to reach the site.
5: For the remaining, get the path elevation.
6: Attenuate the signal powers further according to the terrain.
7: List any remaining above the minimum required level.
The currently published version uses a UK-only private elevation
service, but I'm trying to get the v3 compatible version to use the
Google Elevation Service, using getElevationAlongPath().
As can be seen from the above procedure, the absolute maximum number
of paths that will be requested in quick succession is 10, though
usually it will be about half that. Nevertheless, despite this small
number, I'm getting OVER_QUERY_LIMIT responses.
I wasn't able to find any documentation on the actual limits to using
this service. What exactly are they, and what can be done to overcome
this problem?
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