40 meter rotatable dipole

Discussion in 'Antennas, Feedlines, Towers & Rotors' started by HK2LS, Jul 26, 2011.

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  1. HK2LS

    HK2LS Ham Member QRZ Page

    I'm looking for a 40 meter rotatable dipole for my new tower at the new QTH. This will be 13 meters AGL which I know isn't the ideal height but I need to do with what the HOA will allow (grin).

    Any suggestions as to the best 40 meter rotatable dipole out there (without spending more than 500 bucks)?

    73s --

    KJ4YZF/HK2
     
  2. WB2WIK

    WB2WIK Premium Subscriber QRZ Page

    Not sure about "best," but I have a Cushcraft D40 which is a single band rotatable 40m dipole. It's loaded so it's only about 43' long, but it seems pretty efficient, can easily take legal limit power, and has a nice and very obvious pattern with very deep nulls off the ends.

    http://www.cushcraftamateur.com/Product.php?productid=D40

    I think it's under $400.
     
  3. KM1H

    KM1H Ham Member QRZ Page

    I'll second the Cushcraft

    Carl
     
  4. N5MDT

    N5MDT Premium Subscriber QRZ Page

    Not to try and second guess what you want, but do you as yet have *anything* on the tower? Maybe a Cushcraft A3S with a 40m add on kit would suit you as well... and give you 10, 15, and 20 as well.
     
  5. HK2LS

    HK2LS Ham Member QRZ Page

    yes, sorry - a Tennadyne T6 on the bottom and a dual band fiberglass 2 meter / 440 antenna on the very top. The tower is 10 meters and there is a 5 meter pole on the tower (only 4 usuable as 1 meter goes into the top of the tower and into the rotor).

    Larry
     
  6. WB2WIK

    WB2WIK Premium Subscriber QRZ Page

    I'd put the 40m rotary dipole at the top of the mast as far above the T6 as possible, with the vertical 2m/70cm immediately above that.
     
  7. WD9IDV

    WD9IDV Ham Member QRZ Page

    I just got the Mosley S-401 40M rotatable dipole. Have not had a chance to put up, but seems pretty solid. I will mount under my Mosley TA-63N Yagi.
     
  8. NA7U

    NA7U Ham Member QRZ Page

    Be very careful about wind load on that 4' of mast. That will be the weakest point and will greatly increase the loading on the tower. I'd multiply by about 4 the wind load factor on any antenna near the end of that mast.
     
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