We lost our satellite CATV feed because of noise from a pressure switch in an air conditioner once.
Took us a long time to find that one. From: Af [mailto:[email protected]] On Behalf Of Jaime Solorza Sent: Monday, February 23, 2015 6:05 PM To: Animal Farm Subject: Re: [AFMUG] 711Mhz carrier? Noise can come from most unexpected places. CQ rag had a story on spark plug caused noise on motorcycle knocking out a satellite system on bank building. Chucks advise is good And that would be my first step Jaime Solorza On Feb 23, 2015 3:08 PM, "Peter Kranz" <[email protected]> wrote: Had an AT&T contractor show up at one of our datacenter sites today and claim that one of our radio systems was emitting a carrier at 711Mhz and he pointed at where we have a Dragonwave Compact 18Ghz system and Redline AN-80i 5Ghz system mounted on the building. 711Mhz doesn’t sound like an IF of either of these systems to me, but I’ve got tickets in with the equipment manuf. It looks like they are some 3rd party AT&T has sweeping buildings downtown. Anyone dealt with these guys before? He told me he measured a -87 with his directional antenna 10 feet away from the equipment and acted like that was a really big deal, sounds like a pretty low level to me honestly. Anyone know what the legal limits for spurious emissions are in the 700-800Mhz band? Peter Kranz Founder/CEO - Unwired Ltd www.UnwiredLtd.com <http://www.unwiredltd.com/> Desk: 510-868-1614 x100 <tel:510-868-1614%20x100> Mobile: 510-207-0000 [email protected]
