What kind of antennas? Have you tried coax surge protector(s) like Polyphasers inline between antenna and radio? I only do this on omnis, but I’ve had several omnis blasted to smithereens while the radios survived.
http://www.streakwave.com/itemdesc.asp?ic=AL%2DLSXM%2DMA&eq=&Tp=&o1=0 Do you think the tower is getting hit, or is the surge coming in another way, like via power? I don’t personally believe surge suppressors at the bottom of the tower do anything to protect the radios at the top, rather they protect the router, switch, POE. If anything they may make things worse for the radio, due to ground potential difference. I had one tower struck and lost 6 radios, the only one that survived was temporarily hooked up without a surge suppressor. If these are high value radios, you could try putting a surge protector at the top close to the radio. You might still have to climb to replace the surge protector after a lighting strike though. The only radios where I’ve done this are some Exalt licensed backhauls, because that’s what Exalt said to do. From: Gino Villarini Sent: Sunday, October 25, 2015 10:57 AM To: af@afmug.com Subject: [AFMUG] Site Grounding - what we are doing wrong? So we are loosing radios left and right due to lightning! Typical site setup: Radios on tower grounded to tower Shielded cable Shielded patch panel - grounded Regular cat5 jumpers Wbmfg SS - grounded Regular cat5 jumpers Poe device What's wrong?
