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Carrier at 36mhz on return spectrum

Kind of a long shot but hopefully someone here can help with this question. I have been dealing with a commercial business that has been dealing with problem on their VOIP service for a couple of days, crackling and break up on calls. I have checked the node using a spectrum analyzer when they are having a problem, no noise or carriers. When we move the QAM to a different frequency (from 36 mhz to 30 mhz) the problem goes away. However we can not find a carrier or noise signature at 36mhz. I am thinking there is a device at their business or the nearby motel causing interference at 36mhz....any ideas? Thanks.
This is CABL.com posting #339835. Tiny Link: cabl.co/mbAzn
There are 6 replies to this message
Re: Carrier at 36mhz on return spectrum Joe50 2/19/2012 1:42:30 PM
Re: Carrier at 36mhz on return spectrum Cert Nazi 2/19/2012 11:54:47 AM
Re: Carrier at 36mhz on return spectrum Airband 2/19/2012 11:25:59 AM
Re: Carrier at 36mhz on return spectrum olyteddy 2/18/2012 1:50:23 PM
Re: Carrier at 36mhz on return spectrum stevens2866 2/18/2012 10:36:35 AM
Re: Carrier at 36mhz on return spectrum Scott9710 2/18/2012 6:43:43 AM