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Search results

  1. J

    Coil Loaded Dipole build - photo diary

    Hello All: Ok I posted this yesterday but the computer out smarted me again, and it didn't get posted! The Alpha Delta Dipole Antenna has a real great performance on the 40 meter band. That is, it has a wider that normal bandwidth and works well. I believe the 40 meter wider bandwidth is...
  2. J

    Coil Loaded Dipole build - photo diary

    Yo Mole: Yeah ok good deal, great info there. I have built a 80, 40 20, 15, and 10 meter dipole all with seperate lengths for the bands, but haven't had the time to put it up, and tune it. I am also thinking of a remote automatic tuner in the Barn to tune a long dipole antenna having the...
  3. J

    Coil Loaded Dipole build - photo diary

    Hello Mole: I have one of those Alpha Delta Dipole Antennas; it covers 80, 40, 20, 15 and 10 meters, or better put it’s supposed to cover those bands. I made a 1 to 1 Current Balun to feed the Alpha Delta Antenna, 8 or 9 turns or paired 12 gauge wire around a 2.4 inch Toroid Core from...
  4. J

    Info on Model M-117 Super Magnum antenna

    Hello All: I use to have one of those Super mag type 1/2 wavelength antennas, many years ago. I won it at the local CB Break. I had in a box for some time and then I put it up and worked reasonable well. I did not measure the antennas gain, but I think it worked better than most none ground...
  5. J

    avanti av-190 saturn

    Hello Bob 85: Please post photos and a performance test tesults on this AV190 Antenna. I hear thru the grape vine that the Horz performance was not all that hot. Jay in the Mojave
  6. J

    HF Baluns - How to pick the right one for the job

    Baluns Hello All: Good call Moleculo: I have seen beams work way down in frequency and have a really bad SWR on the wanted band. All because the coax feed line was apart of the antenna, as the outside of the coax shield wire was not isolated from being apart of the antenna. This is usually...
  7. J

    Very Impressed Z 180

    Hello Bobby: I have heard of this antenna I think, does it have a very thick base assembly???? Are you the UIndertaker that has the Hurst that I meet at all the breaks??? Jay in the Mojave
  8. J

    To new Op's on 10 meters from an "Elmer"

    What a bunch of chicken shit complants. How about the older experienced so called Elmers not being such a bunch of tight asses. I would think the stations you talk to having a good conversation is much more important. This is a good example of why ham radio gets its unfriendly reputation, QSL...
  9. J

    VErtical Antenna

    Hello HH: That was a good antenna to see, for the guys who are tied down to CCR's and incoming busy bodies. The design problem is that in some way your going to pay for the antena performance. That is there is no one antenna for the lower HF Bands that will do it all. I have considered a...
  10. J

    VErtical Antenna

    Hello BJ Radionut: Jay in the Mojave Ok the 20 meter vertical I used was a full 5/8 wavelength at 41 feet tall. The 1/2 wavelength ground plane antenna you want to build may have to have its ground plane radials adjusted from a 45 degree down position to flat and level, as a 1/4 wavelength...
  11. J

    VErtical Antenna

    Hello HH: Please send photos of this flag pole antenna installed at your place. Don't forget the ground plane radials wires. And Tuner. Jay in the Mojave
  12. J

    VErtical Antenna

    Hello KC: The 41 feet tall 20 Meter Interceptor 10K Antenna uses two heavy walled lengths of Aluminum Tubing, 12 feet long. (It is a prototype antenna using left over and new materials.) This is done to insure the mechnical resilance of the vertical element. Light weight .058 wall thickness...
  13. J

    VErtical Antenna

    Hello HH: Yeah those look like the Maco V 5/8 base assembly, with a big time insulator. I don't know how they would work, but my 20 meter I-10K 5/8 vertical, that was 41 feet tall kicked some major a$$ on 20 meters. I was such a big strap on 20 that talking to eveyone was like shooting...
  14. J

    RF shutting my truck down

    Hello Hitman: The RF Energy is somehow getting into your vehicles ignition system or computer and causing the ignition to stop working. Causing the engine to miss and stop running. I know in the older models there is a pick up coil in the distrubitor and this coil or wiring maybe picking...
  15. J

    Need More Advice Please

    Hello CLP: Yes the LMR 400 coax has a better shield and slightly lower loss than other coaxes, like RG8. Some customers report back that installing LMR400 was a help in interference problems. Interference problems are hard to predict as every radio installation and every neighbor...
  16. J

    astrobeam

    Hello Bob85: I have seen the Austro beams work, they have the ball park same gain as the 3 element yagi beam antennas. But they do have a very good rejection front to back ratio, like 40 dB or something close. These antennas have the director and reflector elements insulated from the boom...
  17. J

    Maco Alpha V5/8 Groundplane Question

    Hello SK: I don't know of anyone who can see the energy being radiated from the antennas. So we are forced to measure the antennas values and patterns. And make a decision on many things no body knows. The developement process is full of trail and error. I am not sure I know how it works...
  18. J

    Maco Alpha V5/8 Groundplane Question

    Hello Switch Kit: Great photo! Jay in the Mojave
  19. J

    Maco Alpha V5/8 Groundplane Question

    Hello Lazy: The MaCo V5/8 uses what is called a double inductive (I think thats it) matching network to match the 50 Ohms Coax to the ground plane antenna. Yes one inductor is in series to the antenna and the other is in parallell, which goes to ground. It doesn't look right at first, but...
  20. J

    I-10K tuning

    Hello BD: Ok your are ok, you have it tuned ok. Adjust T2 first for the lowest SWR, T1 is the frequency adjusts. Then back and forth for fine tuning. When using shorter coax lengths you will see a narrower bandwidth on the I-10K Antenna or any antenna, this is a electromagnetic property...