Tom,
You don't tell us your location (City, State), which could help
determine the nature of the problem. For example, you may know that the
UHF channels have now been allocated to Digital TV and are being
populated with DTV transmissions this fall -- ie NOW.
The FCC website has the list of DTV channels/city and a quick glance at
that list might confirm that the signal your neighbor is seeing is the
testing of the new transmitter allocated to CH 39 in your area.
Go to www.fcc.gov and click on "digital televison".
73
Bill, N3RR
> k6ct wrote:
>
> Need some help here with interference. Local came by and thought I was
> interferring with his TV reception on Ch39. Good trick since I was
> not even at home during the period in question. In the interest of
> good PR, decided to give the OM a hand. We exchanged phone numbers
> with instructions to him to call me when he experienced it again.
> Well, about 5pm he called with the following observations. Modulation
> bars across ch 39; no interference on any other channels. He uses
> external antenna, ch 39 is about 60 miles S, SE of qth. His house is
> about 1/2 mile south of me. What is puzzling is that sometimes the
> modulation stops but there is interference on his screen that looks
> like a steady carrier. He has tried Radio Shack filters, etc.
> What freq is ch 39? Harmonic of which ham freq, if any?
> Could this be common mode via ac line?
> Tnx for any suggestions
> 73
> Tom
>
> "If money were no object, would you still be in your profession?
> Would you like to have more time to spend with your family and
> friends?"
> If so, check out our web site:
> http://www.bodywise.com/consultants/morton
>
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