Does your lease agreement not have a first in clause?  Something
to make the radio station liable for taking care of the interference
they create?



------- Original Message -------
>From    : Rick Harnish[mailto:[EMAIL PROTECTED]
Sent    : 3/31/2007 10:26:54 AM
To      : [email protected]
Cc      : 
Subject : RE: [WISPA] fm towers

 We had a 7000 watt radio station move onto one of our colo cell tower sites.
They turned up the transmitter and we lost Ethernet connectivity to our
radios immediately.  We replaced the outdoor non-shielded Ethernet cable
with shielded and even ran it in conduit (metal).  That still didn't fix the
problems.  We then replaced the shielded with fiber and a better RF
resistant box and have seen the connectivity issues disappear.  The FM
signal still seems to wear on the longevity of our wireless cards over time.
I think it tends to deafen the receive sensitivity.  

This is just another example of what happens when small local radio stations
get gobbled up by national players who could care less about playing nice.
They are in it to build the station quickly and resell it.  Is it their
fault that we did not have our equipment designed properly to avoid these
types of issues?  No!  It became a learning experience for us and we are
much more careful in our infrastructure design depending on the
possibilities of tenants like this collocating on the same structure as us.

Rick Harnish
President
OnlyInternet Broadband & Wireless, Inc.
260-827-2482
Founding Member of WISPA

-----Original Message-----
From: [EMAIL PROTECTED] [ mailto:[EMAIL PROTECTED]  On
Behalf Of Edward J. Hatfield III
Sent: Saturday, March 31, 2007 12:06 PM
To: 'WISPA General List'
Subject: RE: [WISPA] fm towers

Yikes-my bad! Apparently the S/N number under discussion is being
calculated, not actually measured, and occurs after a CAT5 run down an FM
broadcast tower? Well, no wonder! Apologies for previous (well intentioned
but poorly predicated) advice .  Ted

 

-----Original Message-----
From: Wireless Internet Service Providers Assoc.
[ mailto:[EMAIL PROTECTED]  
Sent: Saturday, March 31, 2007 8:52 AM
To: WISPA General List
Subject: RE: [WISPA] fm towers

 

You could try replacing your CAT5 with shielded CAT5 cable and shielded
RJ-45 connectors.

 

Just my two cents worth....

 

Ty Carter

 

-----Original Message-----

From: [EMAIL PROTECTED] [ mailto:[EMAIL PROTECTED]  On

Behalf Of Jenco Wireless

Sent: Saturday, March 31, 2007 1:40 AM

To: WISPA General List

Subject: Re: [WISPA] fm towers

 

FM kills Ethernet.  Inductors - Period.  Set to 10 Mbps until then.

 

Brad H

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