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Thread: A Better Transmatch for an Amateur Radio Operator! PALSTAR AT2K(BALUN VERSION!)!

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  1. #1
    Join Date
    Jul 2009
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    JEFF-N3IFD/AECW The Keyed Kite! 1/3 mile east of Oxford Circle, Philadelphia, PA, USA, Earth, FN20la
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    Lightbulb A Better Transmatch for an Amateur Radio Operator! PALSTAR AT2K(BALUN VERSION!)!

    --------------------

    http://forums.qrz.com/showthread.php...ve-a-high-SWR&

    http://forums.qrz.com/showthread.php...igh-SWR/page2&




    ______http://en.classicinternational.eu/_c.../450mfj969.jpg____________http://en.classicinternational.eu/_c...j969binnen.jpg


    This Transmatch(MFJ-969) has it's sensing circuitry too close to other circuits.

    I would prefer to use a Transmatch that kept the sensing circuits somewhat "isolated" from other circuits.

    Try using a Transmatch with no extras inside and an external Wattmeter / V.S.W.R. meter combination.


    The following Transmatch(MFJ-901B) has no sensing circuitry. It can't interfere them. It's also well proportioned inside.
    Circuits are direct. Less of an opportunity to induce stray R.F. inside. It's a step-inductor, but at least it's an air-
    core inductor.


    _________________________http://aero-smith.net/cart/images/MFJ-901B%5B1%5d.jpg_______________________________http://en.classicinternational.eu/_c...901bbinnen.jpg


    JEFF-N3IFD/AECW


    --------------------

    I found a MUCH BETTER Transmatch!


    http://www.palstar.com/dealers/at2k%20front.jpg


    http://www.palstar.com/dealers/at2k%20rear.jpg


    http://www.palstar.com/dealers/at2k%20inside.jpg


    --------------------

    There seem to be 2(two) versions of this transmatch. I think the one with the internal balun is the better one.


    http://www.palstar.com/dealer_images.php

    http://blog.kotarak.net/2009/02/palstar-at2k.html


    JEFF-N3IFD/AECW


    P.S.: Sorry about the size of the pictures. They were the only ones I could find that were still relevant! I usually
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    P.P.S.: Joe(JOE-KB3ZGV), please take note! This would be a better instrument for you to utilize!
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  2. #2

    Default

    so what
    you compare two bargain MFJ tuners
    with a high end Palstar

    why don't you compare the Palstar
    with a real balanced no balun

    Johnson KW Matchbox

    heck

    the little Johnson Matchbox can handle legal limit
    the big Johnson Matchbox can handle 3 KW

  3. #3
    Join Date
    Feb 2006
    Location
    Metairie, LA
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    3,622

    Default

    MFJ-989D (updated version of 969): around $300

    Palstar AT-2K with balun: around $500.

    And, as Mac mentioned, neither is really designed to handle open-wire line.

    For that, you should use a double-L network tuner such as the Palstar BT-1500 (around $650).

    Or, better yet, homebrew your own (not that difficult): http://www.somis.org/bbat.html
    Fred

  4. #4
    Join Date
    Jan 2006
    Location
    Wonder Lake, IL
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    Default

    I am shocked! You think a $500 Palstar is better than an MFJ $300 transmatch? Who would have expected that?

    73,

    Bill N9DSJ

  5. #5
    Join Date
    Jan 2006
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    Wonder Lake, IL
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    Default

    Quote Originally Posted by K5FH View Post
    MFJ-989D (updated version of 969): around $300

    Palstar AT-2K with balun: around $500.

    And, as Mac mentioned, neither is really designed to handle open-wire line.

    For that, you should use a double-L network tuner such as the Palstar BT-1500 (around $650).

    Or, better yet, homebrew your own (not that difficult): http://www.somis.org/bbat.html
    Actually, to divert a bit, making one yourself is one of the more cost effective solutions out there; especially if one has a decent junk box. Not sure how many other items fit into that category; certainly a sound card interface is one of the top candidates as are wire antennas.

    73,

    Bill N9DSJ

  6. #6
    Join Date
    Feb 2002
    Location
    Right here
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    13,007

    Default

    Quote Originally Posted by N9DSJ View Post
    I am shocked! You think a $500 Palstar is better than an MFJ $300 transmatch? Who would have expected that?

    73,

    Bill N9DSJ
    It is? I'm absolutely shocked.





    I agree with Mac except I think the KW matchbox can handle 4KW PEP.
    I'm sorry you don't have the experience or understanding to realize that others possess a skill set that you seem to dismiss as fantastical.

  7. #7
    Join Date
    Jul 2001
    Location
    New Castle County, Delaware
    Posts
    7,292

    Default

    Quote Originally Posted by N9DSJ View Post
    I am shocked! You think a $500 Palstar is better than an MFJ $300 transmatch? Who would have expected that?
    Captain Obvious?

  8. #8

    Default

    No ATU needed here on 80/40/20/15/10m.

  9. #9
    Join Date
    Feb 2004
    Location
    Bakersfield, CA
    Posts
    4,869

    Default

    Quote Originally Posted by N9DSJ View Post
    I am shocked! You think a $500 Palstar is better than an MFJ $300 transmatch? Who would have expected that?

    73,

    Bill N9DSJ
    That's a surprise, I'm going to die from not surprise.
    There are some that advocate other tuners and don't like the Palstar offerings.
    Glad you're happy
    73
    Gary

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