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I am a retired old geezer with way too much time on my hands for my own good.

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  • Simple CB Base Station Antenna

    Most likely a solder joint.Check all your solder joints and lengths while you are at it. Also look for nearby metal objects close to the antenna. I just ran the ground side down inside the pvc mast. If you used a metal mast that might make a problem.

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  • rbodell commented on rbodell's instructable Homemade TV Antenna
    Homemade TV Antenna

    I have no idea why it works so good. I originally built it to get tv on my sailboat when it was anchored and swinging in the wind. My guess is that by7 being omnidirectional, it gets stations normally rejected on the side of the beam type antenna that most tv sets use.

    I have no idea why it works so good. I originally built it to get tv on my sailboat when it was anchored and swinging in the wind. My guess is that by being omnidirectional, it gets weaker stations normally rejected on the side of the beam type antenna that most tv sets use.

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  • You are in an alternative energy group and you are not interested in something new (snicker) ????

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  • I experimented with running 100% H in a 7 hp engine. It was all the engine could do to produce enough H to run the engine but not enough to do any additional work. That doesn't mean it won't work, It just means I was not getting enough CFM of H for the amperage I was drawing. I think it is totally possible.

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  • Watch for aircraft LOL. You can put it as high as you want (within reason) but changing the length of the antenna changes the frequerncy. and can mess up your radio.

    The higher the frequency the shorter the antenna

    cb frequencies

    Just the length of the wire. The pvc has nothing to do with it but hold up the wire

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  • rbodell commented on rbodell's instructable Homemade TV Antenna

    RE READ the directions.. The diameter is approx 26 inches. Don't worry about bending the tab, It isn't high tech. Unless you are really bad guesser, you could probably build one without a tape measure LOL. Transmitting antennas are really fussy, but not receiving antennas.

    If it is directional one side probably doesn't have a good connection someplace. Also a weaker signal

    it will work better if built correctly

    That is a big frequency difference. The higher the frequency the shorter the antenna so it would be smaller diameter. TRY IT WITH YOUR FORMULA.

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  • rbodell commented on andytompkins's instructable Rocket Stove

    I would stick with stainless. My rocket stove will melt aluninum.

    heat raising up causes the draught that fans the fire. Ever blow on a campfire?

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  • rbodell commented on rbodell's instructable Homemade TV antenna

    OK let me make it simple. The length of an antenna is determined by the frequency of the signal you want to transmit or receive. The frequencies closes to those that the antenna is tuned to will come in strongest and those farther away from the frequency of the antenna will be weaker. By changing the lengths of the elements of the antenna, you change the frequency it receives. If you change it enough it will no longer receive in the television band.While there is a lot of leeway in the materials, the diameter of the antenna must remain about 26 inches.

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  • rbodell commented on rbodell's instructable Homemade TV antenna

    No television is in a different frequency range. Ask your dad to explain it.

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  • the center conductor of the so239 is soldered to the antenna wire going up. The outer connector of the so239 is where the ground/reflector wire and just passes through a hole to the inside of the mast and hangs down the inside of the mast.http://www.k4icy.com/dipole_connector_so239.jpg

    the center conductor of the so239 is soldered to the antenna wire going up. The outer connector of the so239 is the ground/reflector and just passes through a hole to the inside of the mast and hangs down the inside of the mast.http://www.k4icy.com/dipole_connector_so239.jpg

    200 watts on the cb bands is illegal. I prefer not to get involved in helping anybody do anything illegal. You are on your own on this one.

    It just hangs there

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