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Thread: A3S TRAPS ID

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  1. #1
    Beach Bum
    Join Date
    Oct 2008
    Location
    DONALSONVILLE, GEORGIA USA
    Posts
    65

    A3S TRAPS ID

    Well I bought a CushCraft A3S a couple of years ago and I am wanting to put it up and use it. The problem is that when the ham took it down he didn't mark any of the traps as to which they were or where they went. I called MFJ/CUSHCRAFT and didn't get much help. I sent an email this morning requesting more help. I have tried to use my Heath GD-1B and I am not having any luck finding the resonant frequency of the traps. I am assuming that the longest traps are for 15M and the shorter are for 10M but I have been known to be WRONG.

    I can't figure out why CUSHCRAFT didn't mark these traps with some type of marking that would last. The book says that they have a arrow on them and I guess CC just stuck a paper tape on and run it on out the door.

    Does anybody out there have a idea of what frequency that the traps will resonate at or an idea of how to ID the traps for sure?

    You can bet on 2 things, The Sun will come up in the morning and if and when I ID these traps they will be engraved with the trap model and the arrow.
    __________________
    73's


    Bill W4BD
    Donalsonville, Ga.
    73's


    Bill W4BD
    Donalsonville, Ga.

    EX W4BPK
    SPAR # 529
    Member ARRL

    IF IT'S POLITICALLY CORRECT THEN IT'S A LIE

    THE ONLY GOOD GUN CONTROL IS HITTING WHAT YOU ARE AIMING AT

    I DO EQSL OR DIRECT OR NO QSL DUE TO THE FACT THAT I CHASE NO AWARDS

  2. #2
    Lurker
    Join Date
    Feb 2013
    Location
    Springfield, La.
    Posts
    1
    Bill, did you ever get a reply to your post. the cushcraft traps are fairly straightforward on what goes where!! The traps withthe taper on one end go on the outside and the traps with the same size ends goe to the inside with the end with th screw terminal under the black cap on the boom side. Below is the turns cheat sheet for their traps!

    Cushcraft p/n designator
    TA...............................10m trap has 18 turns
    TB...............................15m trap has 31 turns
    TC...............................15m trap has 31 turns

    TA traps go on the inside (boom side) on all three elements.
    TB traps go on the outside on the front (director) element.
    TC traps go on the outside on the driven and reflector elements.

    Good luck with your project if you are still doing it!!!

    Tyrone - N5XES

  3. #3
    N5XES

    My hat off to you!
    I am building a two element 3 band beam from traps from a A3S
    There are no director traps and wight is an issue because I got a ship for MSWE 2013

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