• You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
  • Click here to find out how to win free radios from Retevis!

Search results

  1. T

    Solarcon MAX OPTIMZER The Ultimate 10-11 Meter Base Antenna

    The context of my post had nothing to do with how useful or not the ground plane kit was, it was commenting on weather or not the antenna met the advertised claim of being a "balanced antenna". Therefore, at best your reply is out of context. Speaking to it anyway... As you have a rather...
  2. T

    Mobile 102 Inch Whip w/spring

    I hadn't really considered the voltage on a capacitor changing with the changes in dielectric thickness. When it comes to the effect of inductance and capacitance, my knowledge comes more from studying their effects on the antenna directly rather than working with the devices themselves. As...
  3. T

    Mobile 102 Inch Whip w/spring

    A few notes on brandon7861 and SuperLid's conversation. Starting with Brandon's side, I just looked up his numbers for the capacitance of a triple magnet mount, and assuming the triple magnet mount has three inch magnets, they are close to accurate (if anything I would say he rounded the...
  4. T

    New Sirio astroplane

    I'm not familiar with a new Astoroplane from then, unless you are referring to their current model Top One which they conveniently advertise as an Astroplane on their web site, which is very different from the old Astroplane antennas. IMHO this version of the antenna is closer to a Starduster...
  5. T

    2m ground plane kit on automobile

    For a given magnet size, the higher the frequency the better magnet mounts of the same size functions. At CB frequencies, a 5 inch magnet is barely able to do the job. At 2 meter frequencies, even a three inch magnet is far more effective than a 5 inch magnet at CB frequencies. Also, just...
  6. T

    Antenna Specialist StarDuster II M 800

    That looks to me like a phasing stub, not a coil like on the radials. Those are typically used when making collinear antennas, to keep adjacent electrical 1/2 wavelength sections in phase, and are thus electrically 1/2 wavelength themselves. I'm not sure that is what it is doing here though...
  7. T

    New Sirio 1/2 wave Gain Master

    DC grounded antennas tend to have less static, and thus are said to be quieter. This is essentially because the cause of the static has someplace else to go rather than build up on the antenna itself. This isn't the only technique of lessening how much static you hear, nor does it work on all...
  8. T

    Mobile False swr readings

    Do you by chance have a magnet mount antenna? The DB
  9. T

    My End-Fed Half Square Antenna

    The first thing I thought of when I saw the half square antenna design is bobtail curtain, which, offhand, I think would likely get you a little more gain. After playing with the half square, if you have the room, you might try one of these as well. The DB
  10. T

    Response to Alabama Buckeye from another thread

    I must have missed this back in time. I'm going to answer this with a little different twist, I am going to mention the antennas I think are the most interesting instead of best performing. That being said, two of them are the best performing in specific circumstances, so I guess that is...
  11. T

    Predator 10K

    You have it backwards here. The limiting factor on the Predator's power handling is the loading coil. The 102" whip on the other hand doesn't have such a limitation and is instead limited to whatever power level the whip itself can handle, which is much higher than even a Predator 30k, much...
  12. T

    A look at the MFJ-1790 Portable 10 Meter Vertical Antenna

    I was asked in a PM about my thoughts on this antenna, I decided to post them here in case anyone else was interested. As Captain Kilowatt noted, this antenna has similarities to the Carolina Windom, which is essentially an off center fed dipole. While such antennas clearly are intended for...
  13. T

    Off Center Fed vertical 5/8 wave??? hows that work

    I haven't worked with this specific antenna. As long as each leg is electrically shorter than an electrical half wavelength, it will act just like a monopole vertical antenna. The DB
  14. T

    Top Load power handling

    14 AWG is .0641 inch diameter 15 AWG is .0571 inch diameter and 16 AWG is .0508 inch diameter. Odd number AWG is a thing, but most companies don't bother as the differences in diameters is small enough that its not worth it. Some places do sell 15 AWG wire as well, its just not nearly as...
  15. T

    Shipping costs are out of hand!

    I never through I would see anyone referring to the mho in the hobby space... The mho is the inverse of ohm, as conductance is the inverse of resistance. Mho is literally ohm spelled backwards, but is also referred to as the siemans. There are two symbols used, when referring to it as the mho...
  16. T

    Field Strength Meter

    In a way I would say that this is true, as even though there is an s-meter standard, no radio manufacturer seems to follow said standard. I would also have to say, in my experience, an actual field strength meter, even a cheap one, is more sensitive than a typical s-meter, showing changes on...
  17. T

    Antenna difference

    It is finicky enough to set up two identical antennas that have virtually identical characteristics (aka twin). The bigger the difference in the antennas (or perhaps the less twin like is a better way of saying it?) the more difficult it will be, and the more skewed the output will end up being...
  18. T

    Beyond confused

    As stated above, many on the CB side swear by the 1/2 wavelength, although based on your posts on this and other forums in the past I am sure you are aware of that and simply mistyped. What happens to the tune if you use a barrel connector and add a two or three foot jumper? Optionally you can...
  19. T

    Response to Alabama Buckeye from another thread

    Yep, thats the world we live in, unfortunately. You could also say that a lie spreads half way around the world before the truth straps on its boots. The problem with this is, people also tend to believe whatever they hear first and disregard the rest. I don't think its necessarily an...
  20. T

    Response to Alabama Buckeye from another thread

    Thank you. Yes, he is trying to help others, or at least that is how it appears to me, which is mostly why I am spending so much time trying to explain things to him. I don't think he understands how wrong some of the things he is putting out actually are, and I don't blame him. As sad as it...