[c-nsp] High-power 802.11b/g repeaters

[Ken Chipps]

It depends on the radio in the repeater, assuming by repeater you mean a
consumer grade wireless access point. Some have 100mW, some 200mW, and some
400mW radios. For these unlicensed frequencies the EIRP is the limiting
factor, which is the combination of the radio power output and the antenna
gain. In the US this is in the FCC Part 15.247 regulations. I would have to
look it up for other countries. When running 802.11b/g the distance over
which the signal travels is not so much a question of physics as it is a
limitation of the timing specifications in the standard. In general 15 to 20
miles is said to be possible. If you mean the radios are set to bridge mode,
then that is another matter. More details would help in answering this
question.

Ken Chipps

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Howard C. Berkowitz
Sent: Sunday, January 08, 2006 3:52 PM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] High-power 802.11b/g repeaters

I have an application where a WLAN repeater will be in a high outdoor 
location (e.g., a tethered balloon), and, as I understand, there is a 
way to make certain repeaters run higher power than is advisable 
indoors. Can anyone point me to a document on the settings and range 
assumptions (of course, the latter is antenna-dependent).
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