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 -- WISPA Wireless List: [email protected] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- WISPA Wireless List: [email protected] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
