[Elecraft] Dish/Direct TV RFI?

John K9UWA john at johnjeanantiqueradio.com
Wed Mar 14 15:04:04 EDT 2018


A little clarification is due. Sorry I missed a couple parts in my original response 
this morning to Reed's question about DirecTV rcvrs.

My first omission. I do not use DirecTV for internet. Only for TV-reception. It would 
be horrible for internet. No Satellite Internet would work for anyone depending on 
internet to operate your own ham station remotely due to latency and or packet 
loss. My internet is provided through a CATV company. 

I have never had a problem with ingress of my Ham Station into the DirecTV 
system so I never considered that as an issue. I do run 1500W on 160-10m. 

Next part. Those who claim that the direcTV receivers don't make any noise into 
their Amateur Radio stations probablly have not listened to their DirecTV receivers 
with a Noise Sniffer, AM-transistor radio tuned off station; Small loop attached to 
your Ham Radio receiver that can be placed close to this receiver and other 
devices in your home. Sniffer receiver used is an old Sony 2001-ICF It doesn't 
have ANL. It can be tuned to most any frequency of interest, It has both internal 
an directional loop antenna and a nice long extendable whip that you can reach 
easily close to your Wall Warts, DirecTV receivers, TV sets, Computers Modems 
Routers fluorescent Lights LED lights. Try a walkabout your homes with such 
noise listening devices. 

You just might be surprised at how much noise you are getting into your ham 
radio antennas. Once you eliminate the top tier of noise generators in your home 
then you begin to hear the next level down noise generators. There are zero 
fluorescent ballasts in my home. All have been replaced by yes I did find quiet 
direct wire LED bulbs for replacements. Zero Variable speed motors, Fans or light 
dimmers. Many other devices as well as the wall wart switchers are gone or 
choked to stop the noise. 

Additional excellent information of noise location and cures at 
http://audiosystemsgroup.com/KillingReceiveNoise.pdf

John k9uwa
DXCC 160m 320
John Goller, K9UWA & Jean Goller, N9PXF 
Antique Radio Restorations
k9uwa at arrl.net
Visit our Web Site at:
http://www.JohnJeanAntiqueRadio.com
4836 Ranch Road
Leo, IN 46765
USA
1-260-637-6426



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