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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: RE: zzzzzzzzzz posted by gusser on August 23, 2016 at 13:14:26:
The noise these switchers produce both dirties AC and puts out a ton of RFI. I'm an extra class ham and these things kill the HF bands. I don't care about TV very much but have seen what they do these days and its love hate. I have a 32 inch LED in my room here at the nursing/rehab that can do 1080p, consumes only 9 watts of AC and cost a paltry $139. Pretty amazing, thanks China.I helped a guy setup his first ham station in a culdesac in the suburbs and the noise on 80m starting about dinner time to 11PM made that band unusable. As the night went on and people turned off their TVs the bands became quiet and usable. Standing atop his roof there were easily 25 houses within a hundred fifty feet.
The noise today's TVs produce affect things like audio systems and radio and have little impact on TV itself. Pollution is pollution though. Take a pocket transistor set to the low end of the dial and use it as a noise sniffer. There are so many noise sources in the modern home.
Even in very rural WV where I live with only about ten houses within a mile of mine there is lots of noise. I made a nice battery rig for my Icom and looked forward to those times when the power went out because it got so quiet. The grid is VERY polluted these days.
Electronics wise I learned from my dad as a kid and worked as a bench tech repairing and calibrating test equipment. I can solder very small SMD with a small tip Weller and a heat gun. I've been in some form of electronics almost all my life from sales and management to install and repair.
I love to restore old tube radios and built four ham antennas and installed them on my property. I'm more the jack of all trades master of none type.
ET
"If at first you don't succeed, keep on sucking till you do suck seed" - Curly Howard 1936
Edits: 08/24/16
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- RE: zzzzzzzzzz - Awe-d-o-file 21:26:08 08/23/16 (0)
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