nanog mailing list archives
RE: Wireless bridge
From: Lyndon Nerenberg <lyndon () orthanc ca>
Date: Thu, 18 Jun 2009 10:11:02 -0600
On Thu, 2009-06-18 at 11:54 -0400, Peter Boone wrote:
Oh I know. Luckily it's located in an industrial area just on the outskirts of the city. There isn't a lot of other WiFi (in my opinion); 3-5 total SSIDs spread across 2 of the 3 physical channels (1,6,11) depending on which rooftop you measure from.
2.4 and 5GHz license-free Wifi is license free because the frequencies are shared with the ISM (Industrial/Scientific/Medical) services. In an industrial area, competing WiFi is the least of your worries. These frequencies are also used by industrial grade heating units. Got anyone in the neighbourhood running a large plastic shrink wrap machine, for example? You can't directly detect these other users with a Wifi transceiver. Depending on the nature of the interference you *might* be able to hear it directly on a scanner (if you can find one that covers those frequencies), but you really need a good spectrum analyzer to tell what's going on. Anyway, don't assume the competition for spectrum is only other Wifi units. --lyndon
Current thread:
- Wireless bridge Peter Boone (Jun 18)
- Re: Wireless bridge Jared Mauch (Jun 18)
- Re: Wireless bridge Joe Tyson (Jun 18)
- Re: Wireless bridge Chuck Anderson (Jun 18)
- Re: Wireless bridge Roy (Jun 18)
- Re: Wireless bridge Curtis Maurand (Jun 18)
- Re: Wireless bridge Joel Jaeggli (Jun 18)
- Re: Wireless bridge Charles Wyble (Jun 18)
- Re: Wireless bridge Michael Dillon (Jun 18)
- RE: Wireless bridge Peter Boone (Jun 18)
- RE: Wireless bridge Lyndon Nerenberg (Jun 18)
- RE: Wireless bridge Peter Boone (Jun 18)
- RE: Wireless bridge Peter Boone (Jun 18)
- Re: Wireless bridge Joel Jaeggli (Jun 18)
- RE: Wireless bridge Peter Boone (Jun 18)
- Re: Wireless bridge Curtis Maurand (Jun 18)
- Re: Wireless bridge Charles Wyble (Jun 18)
- Re: Wireless bridge Jared Mauch (Jun 18)
- RE: Wireless bridge Tim Huffman (Jun 18)
- RE: Wireless bridge John van Oppen (Jun 18)
- RE: Wireless bridge Bret Clark (Jun 18)
- Re: Wireless bridge Neil Harris (Jun 18)
- Re: Wireless bridge Chris Adams (Jun 18)