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My Direct TV reciever & AM reception...

J

jras20

I had to get onto a new Direct TV reciever, now with it pluged in, I get a bad feedback noise on AM. Its not much noticable on strong stations, but on weaker ones you can hear a fast click sounds, the other reciever never did that. This one is a newer one we had to replace after the lightling strike. Is there any way I can clear it up? Both of my recievers am/fm can pick this noise up. I gues it might be something to do with the remote controles for the Direct TV?
 
It is most likely the processor in the receiver. The remote controls are an unlikely source when not in use. These new boxes have more in common with computers than anything else now, so the steps to reduce interference will be similar to what you would do for a desktop PC.

To isolate the problem, turn on the DirecTV rcvr. and an AM radio. Then start disconnecting one thing at a time (phone line, connection to TV, connection to dish, etc.) to see which cord is throwing the noise. If it's none of the above, then the interference is being sent thru the AC wiring (especially if the unit does this when it is turned 'off'). Also make sure all coax connections to the dish are tight, and that the dish is properly grounded. DirecTV boxes tend to be fairly well shielded, so I'd look at the phone line first, then the AC cord. This may not eliminate the noise 100%, but will cut it down. RatShack has snap-on RF chokes. Follow instructions for proper installation & number of windings.

Also, some surge protector plug-strips have RF filters built in. Look for one and use that too. Every little thing helps. (Surge protection is always a good idea for DBS boxes)
 
Thanks I'll lookinto it.
 
All new technologies work by pretending to be part 15 devices. They think that when you buy one of them, you will never need your AM radios again. They never test such devices to see if they cause a problem for AM radio. They know that the devices will interfere, but designing it the right way would cost more money. So, if you have a problem, you're on your own. And while it says "this device may not interfere with and must acccept interference from licensed services", they can't and won't do anything if you complain.
This started a long time ago with lamp dimmers, and has just gotten worse and worse.
 
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