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  1. M

    Imax GP Kit

    What do the Antenna experts here think of this? I pulled it off another forum and thought to bring it here. I was able to understand this. Imax 2000 Ground Plane Kit Reviewed What difference does the ground plane kit make on the Imax 2000 antenna? After dissecting the Antron 99 and Imax 2000...
  2. M

    Astroplane, what is it? 1/4, 1/2, 5/8 ??

    There must be something about this antenna. I've been into CB since the early 70s and the buzz about how good or better the AP performs compared to other alleged better antennas is almost universal. It is an endless debate in almost any radio forum you can find. It was a debate on the CB radio...
  3. M

    Astroplane, what is it? 1/4, 1/2, 5/8 ??

    I'm not schooled in how to read these models. Is there a web site you could direct me to that would assist in helping me to at least understand the basics and some of the technical metrics?
  4. M

    Astroplane, what is it? 1/4, 1/2, 5/8 ??

    Thanks for the advice. Still kicking around my options. I've always been intrigued by this odd looking little antenna. I've been into CB since the early 70's and the buzz about the AP has never gone away as long as I can remember. I may just pick one up.
  5. M

    Astroplane, what is it? 1/4, 1/2, 5/8 ??

    Thanks for both replies Marconi.
  6. M

    Astroplane, what is it? 1/4, 1/2, 5/8 ??

    Does anyone know if gamma fed in this antenna application is better than the original AP version?
  7. M

    Astroplane, what is it? 1/4, 1/2, 5/8 ??

    I think what I've been reading on the AP and later clones is they are not all built the same. Avanti claimed the AP was a 5/8 wave. I see Sirio calls their version a 1/4. Not sure about Tegra. Was the Avanti claim false?
  8. M

    A99 and IMax Wind Load#

    Perhaps but since its not my focus I'm not validating.
  9. M

    A99 and IMax Wind Load#

    Thanks. That's a wind survival rating, not a wind load factor.
  10. M

    A99 and IMax Wind Load#

    I've looked and cant find the wind load numbers for these 2 Solarcon models. Anyone have a clue where I can find that? I've tried the manufactures web site and Google searched like crazy. Cant find it. Thanks
  11. M

    A99 and IMax Wind Load#

    A99=17.5 feet tall. I-Max 24 feet tall. The I-Max has at minimum, 27% more surface area than the A99. If the IMax has a wider profile than the A99, then the surface area will be yet greater. The difference is significant and that's why I'm trying to find the wind load figures. There will be no...
  12. M

    A99 and IMax Wind Load#

    Thanks. My focus here is trying to measure wind load difference between these 2 antennas. The mounting has its limitations so I'm trying to see if going from an A99 to the Imax and how much additional load that will apply to the mounting. I'm not concerned with wind survival ratings.
  13. M

    A99 and IMax Wind Load#

    I've looked and cant find the wind load numbers for these 2 Solarcon models. Anyone have a clue where I can find that? I've tried the manufactures web site and Google searched like crazy. Cant find it. Thanks
  14. M

    Base Coax Question

    I'll be mounting an A99 to my chimney. Bottom of the 99 will be in the 23 to 36 foot range. I'll be using a 10 foot galvanized mast that will be sunk into the mounts about 3 feet. That will leave about 7 feet of mast above the top mounting bracket. For coax I have a 100ft run of LMR 400UF. My...
  15. M

    Astroplane, what is it? 1/4, 1/2, 5/8 ??

    Sorry, obviously I've unearthed some old wounds here. Certainly did not mean to do that.
  16. M

    Astroplane, what is it? 1/4, 1/2, 5/8 ??

    Found this interesting read on the Astroplane done a few years back. So, really what was the Avanti AS? What about the the Siro TO. Is it the same principle of how the Avanti used the 9 ft mast below the basket as part of the antenna? http://www.cb27.com/tecnica/astroplane
  17. M

    considering an M400 starduster. whats the deal?

    So is this modeling telling us that with earth ground a standard 1/4 wave GP with same GP radials at 0 degrees should outperform the SD with all things being equal?
  18. M

    A99

    Yes, thanks for that.
  19. M

    A99

    Does the A99 radiate from the top section?
  20. M

    A99

    Question, does the A99 and similar multi piece antennas like the Imax radiate from the top section?