[Lowfer] [600MRG] HDTV RFI, request recommendations for reduction of noise

Andy - KU4XR ku4xr at yahoo.com
Sat Jan 5 09:44:30 EST 2013


> While direct radiation does not propagate very far the
> common mode currents on external conductors can create havoc
> at radio frequencies. Those can travel a quarter mile or
> more and by their nature are vertically polarized.
> 
> 
> Carl
> KM1H
_______________________________________________________________

Thanks Carl:  I was planning to make an empirical experience
comment relating to comments in your post.. The new HDTV is a 
noise beast.. The radio station I work at is on 1220 KHz, and 
when I pull up in front of my home; I can see thru the window 
that the TV is on, BUT !! before seeing the screen luminesence 
on the wall, I can " Hear " the TV grunge about 75 feet from 
my home.. The TV sits on top of an entertainment center, at 
the window.. Sitting in my driveway, with my A.M. radio on, 
I can hear the noise change as the picture on screen changes.. 
I'm not going to " blast " a $ 700.00 TV, as with all the devices 
I have tackled in the past; " Eventually " I will track down, 
shield, and eliminate, or greatly reduce this un-tamed lion.. 
I will find a way to pull it's teeth, and quieten its growl... 

Andy - KU4XR


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