In a message on 03-02-18 Tony Langdon said to Jeff Smith:

Hi Tony,

 JS> Me either. It only seems to be an issue on 10m. As transmitting on any
 JS> other HF bands doesn't appear to bother that TV at all.

TL> Obviously something really picks up 10m.  Years ago, home alarms had
TL> a similar problem, most commonly triggered by 40m, but no other
TL> band.

We had a similar problem. The TV-sets manufactured in the 1950-1960's
had an IF-frequency of 21 MHz. Obviously we had to avoid working on the
15m, and to some extent 40m bands, since 7 MHz * 3 = 21 MHz.

Luckily, in those early TV days, they were not transmitting programs
24h/day, so we could operate ham radio outside TV-hours.


73 de Sam, OH0NC

aka Holger


.. No Phone?  No Internet?  No Problem!  Ham Radio
-- MR/2 2.30


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