Jim is 100% correct. The Direct TV receivers are HORRIBLE for noise generation. Maybe you can't hear it if your Ham Antenna is far enough away but it is there for sure. I bought a Sony model ICF-2001 to use looking for various noises about the house. You don't want the later models as they have auto noise blankers in them. The radio covers AM/SW/FM and does AM or SSB.
Jim is exactly correct regarding the Wall Wart type switcher supply on these Direct TV receivers. They are 12.6 vdc so easy for us Hams to pick up a nice small linear transformer powered regulated supply. I also hooked up the Modem and Router to this same linear supply. Yes every one of them made noise. Next the HDMI cable from the Direct TV receiver to the TV set also mades lots of racket. I use TWO of the FT-240 mix 31 cores and managed to get about 5 turns through both chokes. That killed the HDMI cable noise. John k9uwa > On Tue,5/17/2016 8:26 PM, Edward R Cole wrote: > > I suppose some ferrites and shielding the separate switcher would > > solve this. > > Or replace the switcher with a linear supply. > > 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
