[CTSARA] Marine Radio Interference Problem - Followup

Jon Perelstein jon.perelstein at gmail.com
Thu Jul 25 10:44:40 EDT 2013


I think I forgot to tell everyone of the resolution on this problem.

Tom KD1UL of Stamford CERT (and SARA) identified the source of the noise --
the Scientific Atlanta cable boxes that Cablevision uses.  Many of them put
out a signal on about 162.000 MHz (+/- 5 KHz).  That's why there was so
much trouble localizing the source - it's all over.  It does explain why
the problem was much louder in certain marinas/boat basins/boat launches
than in others, and why it wasn't a problem in mid-Sound.

Those of you using Dish or whatever, don't go patting yourselves on the
back.  It appears that there's a lot of cable/satellite/whatever comm
equipment containing something that puts out signals near 162.000 MHz (say
+/- 5 MHz).

Thanks Tom

73s
Jon, WB2RYV


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