600VDC and 802.11?

James Smith jsmith at PRESIDIO.com
Fri Apr 11 20:55:02 UTC 2003


That would be more of a propagation problem. 

I'm assuming what he wants is near-field problems, like having the gear in the EM field of the of the wiring, and not the path between the antennas...

600VDC/300A? Running Frankenstiens Lab?

James H. Smith II NNCSE NNCDS
Senior Systems Engineer
First Call Response Center
The Presidio Corporation


-----Original Message-----
From: Jack Bates [mailto:jbates at brightok.net]
Sent: Friday, April 11, 2003 8:39 AM
To: Stephen Sprunk
Cc: North American Noise and Off-topic Gripes
Subject: Re: 600VDC and 802.11?



Stephen Sprunk wrote:
> Anyone know about the compatibility of high-voltage DC systems and 802.11b?
> The gear itself will be running on 120VAC via an inverter, but 600VDC/300A
> creates a strong EM field that messes with a lot of off-the-shelf RF gear
> and even some non-RF electronics.
> 

To give you a vague idea, we had an issue with a 5 mile 802.11b run 
early on. It turns out that the signal was crossing a power line at less 
than 5 degrees. Cutting sharply across the power line fixed our problem. 
In general, it's best to just try it and see what happens.

-Jack




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