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Antenna issues- loss of signal with a DIY antenna

Recently, I have made an HDTV antenna using a video from youtube (http://www.youtube.com/watch?v=EWQhlmJTMzw) and some inspiration from Instructables that I have read. The issue i'm having is that I am slowly losing my signal. I noticed the rust build-up on the end of the fins of it and I have cleaned them up, but it didn't help.
Another issue is that I can't seem to pick up a local channel, yet on clear nights I pick up channels from 100 miles away. ( I live in Winchester, Ky and I pick up Cincinatti channels) Anyone have any ideas? Maybe re-work the metal parts with a different type of metal? Maybe a few ideas on different designs?

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Like re-design said about the rust. Double check the connections if there is rust clean it off then reconnect and seal it. Depending on what type of antenna you made and what you made it out off would determin how I would seal it. as for not getting local channels but getting others from farther away, check your direction you got it pointed. The farther stations could be pumping out more power and over riding the local stations, or you could just be jetting atmospheric bounce. Since you DIY your own I assume you know of TVfool.com go back there and check if anything has changed it might help. I'm not a pro at this at all, I've just researched same as you.
PapaHex (author)  RedneckEngineer6 years ago
Actually, it seems that you have researched this more than I have. That site seems wonderful so far. I re-worked all of the metal I was using (coathangers) and it seems to be getting a better signal. I have also decided to put it back inside to help against the elements until I can figure out sealants that would be useful to prevent the rust build up.

On another note, I noticed the coaxial cable I was using was being bent to heck and back by the door being opened and closed. There were a few spots where I could see the internals of the cable. I went ahead and replaced the cable.

Thanks for the advice and that awesome website. Next time, I should probably do a lot more research before I go ahead with a project like this.
LOL I'm glad you liked the site. I just figured everyone doing DIY antennas found and used it. It is a great tool to help locate things. Did it explain why you were getting the other channels? I also made a coathanger antenna and have been useing it for quite a while. When I made mine I used hot glue over top of the connections before I stuck it up outside. It keeps the weather from gettin in and causeing problems. Right now I need to move mine because all the trees now have leaves that wern't there when I set up for testing (it worked so I got lazy and left it there lol) and have been getting less reception as time goes by. One of these days I'll get off my but and fix it, till then ......Netflix!
PapaHex (author)  RedneckEngineer6 years ago
According to the website, I should be getting the channel. I think the issue is that I live across the street from a sub-station that probably emits some pretty big interference. The idea of the hot glue on the connections is wonderful ^^ As soon as I get a chance to grab a hot glue gun, I will definitely do that. I'm pretty much stuck with keeping mine on the lowest floor of my apartment, due to the fact that they don't take kindly to people jumping on the roof to attach an antenna lol. Thanks again for the awesome comment and yes, Netflix is pretty awesome. I need to run it through my Xbox360 as soon as I get my internet setup in the apartment. Thank the gods for open wifi signals ^_^
Yea the substation could very well be giving you problems. Is it in the direction you need to point it in? If not directly you could put some type of directional block behind it, just a thought. Since you were getting it before it makes me wonder about it being the problem though. Even if you don't have hot glue there are other things you could experiment with, silicon bath caulking, even old elmers glue, you never know till you try it. Is there a window you could stick it out of on a pole to maybe gain some hieght? The main things that help are hight and direction, anything you can do to help these should help. Even some type of a reflective surface behind it in the right direction should help. Keep searching I'm sure you'll find ideas that you can do to help.
andy707076 years ago
I would just buy an antenna, they are only about £20 (~$32). All I know is that for a TV antenna, the metal has to be exactly the right length, exactly the right shape, and have good conductivity to work. The cable should also be shielded with a grounded sheath and have a ferrite at each end to eliminate EMI. It also needs to be positioned correctly to receive a good signal.
PapaHex (author)  andy707076 years ago
I've bought a few antennae in the past three months. Since I bought this Hdtv, none of them have compared to the antenna I made, at first. As time passed, that's when I started to have these issues. We've also had a heavy rainy season this year, so I figured it was just the rust interfering.

I really should be doing more research on this and finding which antenna I should build to get a better signal. Thanks for the advice ^^
Re-design6 years ago
If the connections to your antenna are not corroding then the corrosion on the outside is doing nothing to hurt your reception.

A few weeks ago there were some events on the sun that will make radio and tv reception variable for a while.
PapaHex (author)  Re-design6 years ago
I didn't know about that. That's right about the time it was starting to lose a couple of my local channels, but gaining the further channels. That might be something worth researching as well. Thanks for the advice.