From: "David Scheidt" <[email protected]>
> David Scheidt wrote:
>>
>> For communication between fixed points, cables will always be cheaper
>> than radio links in the the long run. They're also faster and more
>> reliable.
>>
>
> I'm not sure I can agree with you unless you specify the distance between
> the fixed points and whether you can rig masts for additional range due to
> LOS issues.
>
> If you have LOS, then point to point wireless communications is much less
> expensive, both in the short run (setup costs) and long run (maintenance
> costs). If you're looking at distances of several hundred miles and can use
> solar/battery powered relays, then you're still going to be less expensive
> over running cable between the two fixed points.
There's a reason there are no long-distance microwave links anymore:
They're expensive to run (radios consume lots of power), they're
expensive to maintain, they're unreliable, they're weather sensitive,
I think you're overlooking advances in DSP and other fields. A kitbashed
cantenna will push an off-the-shelf wifi connection to 10+ miles, and
all the larger public schools here in Texas' 8th region are connected
via dish and mast to regional HQ in Mt. Pleasant (50 mile radius; though
the weather here is very mild during the school year, I will admit).
--
Jeff Wilson - [email protected]
< http://www.io.com/~jwilson >
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