Dtv Antennas I Have Tried or Will Try.





Introduction: Dtv Antennas I Have Tried or Will Try.

Some of the home made OTA DTV (over the air digital television) antennas I have tried (or going to try). I will add additional pictures as I test them.. Since your mileage may very I will not rate them. One was even just a telephone wire cable (not pictured yet). If you have any suggestions for antennas, please let me know.

More: Latest antennas here.

There are lots of things to test. Vertical or horizontal position, whether they were meant to be uni-directional or omnidirectional, how populated are the stations are in your area, whether the stations are all in on major direction or spread out in a circle from you, and lastly what kind of signal booster are you using or not using.

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    Link for finding tv signals is (no "s") and for FM signals, use the link in that home page as well.

    enjoy better reception

    Thanx for catching the typo. Have not looked at this instructable in forever. Generally, if you have a good non-drectional antenna and tuner. Getting the stations is not so critical. We get over 100 stations.

    The telephone wire antenna you made has an impedance of 125 ohms and is close enough to the 75 ohm cable impedance that mismatch is negligable.
    Both CAT5 and telephone wire have the same impedance of 125 ohsms.
    Lamp cord and Romax wire are 75 ohms on the other hand so a better match

    66tbird FYI- HOAs are no longer allowed to ban outdoor TV antennas, no matter how big or really freakin ugly

    At the start of this DTV thing I must of built a dozen of these types of antennas in all flavors. I'm an extra class ham so its second nature. Had ok results from most. On a whim I tried my very old regular TV antenna. wow, went from 17 channels to 38. I had been noticing lots of old antennas being toss out and waiting for large item garbage pickup. In a few days I had plenty of raw material to build from and a few really high-end virtually new units. After some more study on the actual freq used in dtv I realized the elements over 20'' or so were not necessary,(for my area). I trimmed back those to make another array equal to the smaller elements. Stuck it on a pole, pointed it at a city 150 miles away and bingo. I get all their stuff and my local channel plus some on the backside. 55 channels total at times, 44 normally and only 23 in my language which only 18 I watch. Boy, what a hobby.

    Anyways, Computohought, your little number is a great example of a good antenna. With a little math you can taper and space to fine tune the elements to catch the 450-650 Mhz using some harmonics really well, A quality amp well help if the signal is steady but low. If it's a drifting thing I've not had much luck on the amp side using an indoor antenna.

    Cool. and thanx for the suggestion. I get all the stations that I am told are around me without any wavering. Will probably leave well enough alone. I do get quite a few channels.

    Good, 'leave it alone' was what I finally had to do after working for that last few channels that I ended up now using or were dups.
    One more I've setup on a home where outdoor setups were permitted, (HOA thing). We turned the small element array on its side. Mounted two more identical ones also vertically but at different angles to point a different mountains or cities. With an amp he does really well pushing the signals from four major cities to four tv's. Over 70 channels with dups but different times.
    After it was all done I told him about Hulu,, haha

    I have built and are currently useing the first one. I would be really interested in your results on the others in comparison. The phone line one sounds interesting as I have thought along those lines but I never took it to anything more than idle thoughts. I'll be waiting to see what you got in the works. =)