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Elevation 1800ft Linksys WRT54g OpenWRT |
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Elevation 260ft Linksys WRT54g OpenWRT |
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Elevation variable Linksys WRT54g OpenWRT |
Keep in mind this not a point-to-point system. The main antenna is an omni.
I was able to communicate among the S, I, and H points (5 mile hops), using I as an AP, quite reliably.
The basic setup was
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This is a topographic map of some of the contacts I and
an associate made while wondering around with antennas.
The closer group is around 5 miles. And I could generally use the link reasonably reliably. The further link was highly unreliable. The "I" is the main antenna. |
Here are some excerpts from data I collected over 6 months on a 5 mile link:
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Generally as long as the packet less rate was below 30% TCP would operate fine over the connection.
Generally I was running 1 to 6mpbs as the physical link rate.
An interesting fact, which shows more clearly if you have all the data, is that people's microwaves definitely radiate all over the 2.4GHz band around lunch and dinner time.