[CTSARA] Marine Radio Interference Problem - Followup

[Jonathan Solomon]

Jon and Tom-

Does this happen with the newer black cablevision boxes?  I am reaching out
to some people in the TV business to see what they say.  My initial thought
is a harmonic of the CH3/4 RF output.


On Thu, Jul 25, 2013 at 10:44 AM, Jon Perelstein
<jon.perelstein at gmail.com>wrote:

> 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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