Rodgers,
We use the omni-directional yagi antenna. Perhaps the directional antenna
may help.
The configuration worked pretty well until around a month ago when the
interference began. Prior to that signal strength and quality were high.
I don't believe normal cellular transmissions interfere with the bridge
however, it appears that interference occurs only during testing periods of
the cellular tower. This is largely my guess since I am not up for a spread
spectrum analysis of something I couldn't correct. Voicestream itself
wasn't responsive to queries regarding their cell tests, but the FCC
informed us that indeed the cell carrier is capable of interfering with the
bridge since our frequency is unlicensed.
Matthew
-----Original Message-----
From: Rodgers Moore [mailto:[EMAIL PROTECTED]]
Sent: Thursday, March 29, 2001 5:54 PM
To: [EMAIL PROTECTED]
Subject: Re: Cisco Aironet 340
Do you have the omni-directional antenna, or directional? The directional
is polarized and shouldn't interfere or be interfered with other RF sources.
The first time I used directionals, they wouldn't get a strong signal, that
is until we had both in the same orientation. I had them 90 degrees out of
phase, anyway they work rather well.
Rodgers Moore
<[EMAIL PROTECTED]> wrote in message
52D26B7F4FB6D411A34800E018025FA303758D@MAIL-SK1">news:52D26B7F4FB6D411A34800E018025FA303758D@MAIL-SK1...
> Dennis,
>
> I've worked with the Aironet 340 wireless bridge, and my experience hasn't
> been a joyous one. The wireless bridge is usually used to connect
> buildings using an 11mbps spread spectrum radio connection. For around
> four months, the airbridge worked nearly flawlessly except for some
> excessive broadcast traffic. (my fault - didn't bother to segment into
> broadcast domains) Around a month ago, we started to experience
> tremendous amounts of interference, which would bring the airbridge down
for
> hours at a time. For two weeks I moved the antenna, modified the
> configuration on the airbridge to a lower speed, and ultimately called
Cisco
> to try to solve, what appeared to be a complete enigma. Turns out it
wasn't
> a hardware issue or a configuration issue. A voicestream cellular tower
on
> one of our buildings was causing the interference. Our airbridge was
> apparently interfering with their cell tower, and as a result, their high
> power testing of the tower caused interference on our airbridge.
> While you're using the roaming aironet 340, I thought you could still use
> the info. BTW, we use a 3com wireless inside our buildings for laptops
and
> it works pretty well.
>
> Matthew
>
> -----Original Message-----
> From: Adekola, Dennis D [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, March 27, 2001 8:55 AM
> To: cisco
> Subject: Cisco Aironet 340
>
> Hi Guys,
>
> I just heard that we shall be dealing in Cisco Aironet 340 roaming
>
> Has anyone had experience with this ?
>
> I have had a look on the cisco website and i can see it has something to
do
> with wireless laptops/PC's
>
> just wondered if anyone out there could give me a brief summary of the
whole
> idea
>
> Thanks
>
> Dennis
> MCSE,CCNA,CCNP
>
>
>
> --------------------------------------------------------------------------
--
> ---------------------
> 21st century air travel http://www.britishairways.com
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