I've had an issue with my HF radio wreaking havoc on some household electronics ever since getting my ticket. Furnace fan coming on, electronics freezing up or going wild. It was a hoot...
Changed antennas, added chokes, the usual. I ended up building a mega-grounding system out of 2" copper strap, several new ground rods all tied back to the main panel, and that solved all kinds of problems. Except the 55" LCD TV.
All I had to do was tune up on 10m and if the TV was on, it would go off. If it was off, it would come on with the volume full blast, it wouldn't see the remote control, etc... All you could do was yank the plug out of the wall.
Rather than attempt to do battle with the manufacturer "LG" over their lack of filtering, I decided to cover the cord in ferrite beads from one end to the other. That helped, but didn't solve the problem 100% of the time. Then I decided to wind some 14ga wire around a ferrite choke, then splice it in to the positive side of a power cord.
Problem solved! For about 20 minutes...
The choke started to buzz and danced around on the shelf until the children ran out of the room screaming.
I basically couldn't do HF if anyone wanted to watch TV because I had to unplug the TV if I wanted to talk. Since someone's ALWAYS watching TV, I pretty much gave up on HF.
Then Moleculo found some power cords that were lined with ferrite and had built in blocking capacitors. I got one from him last week and it solved the problem 100%. I've been on 10m for days now without a single hiccup.
The cords are available here --> Emc Eupen The only downside is the $100 minimum order. That will get you five of the #NA-201 cords. I think Mole still has a couple left from his order that he might be willing to part with. Beyond that, a couple of you could get together and do a group buy unless you NEED five.
I wish I had found this years ago. I guess I did at least get a hell of a ground system out of the whole process.
:blink:
Changed antennas, added chokes, the usual. I ended up building a mega-grounding system out of 2" copper strap, several new ground rods all tied back to the main panel, and that solved all kinds of problems. Except the 55" LCD TV.
All I had to do was tune up on 10m and if the TV was on, it would go off. If it was off, it would come on with the volume full blast, it wouldn't see the remote control, etc... All you could do was yank the plug out of the wall.
Rather than attempt to do battle with the manufacturer "LG" over their lack of filtering, I decided to cover the cord in ferrite beads from one end to the other. That helped, but didn't solve the problem 100% of the time. Then I decided to wind some 14ga wire around a ferrite choke, then splice it in to the positive side of a power cord.
Problem solved! For about 20 minutes...
The choke started to buzz and danced around on the shelf until the children ran out of the room screaming.
I basically couldn't do HF if anyone wanted to watch TV because I had to unplug the TV if I wanted to talk. Since someone's ALWAYS watching TV, I pretty much gave up on HF.
Then Moleculo found some power cords that were lined with ferrite and had built in blocking capacitors. I got one from him last week and it solved the problem 100%. I've been on 10m for days now without a single hiccup.
The cords are available here --> Emc Eupen The only downside is the $100 minimum order. That will get you five of the #NA-201 cords. I think Mole still has a couple left from his order that he might be willing to part with. Beyond that, a couple of you could get together and do a group buy unless you NEED five.
I wish I had found this years ago. I guess I did at least get a hell of a ground system out of the whole process.
:blink:
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