[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 All have been replaced by yes I did find quiet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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