What is this called?

Discussion in 'Tuners' started by ghbrian, Oct 22, 2018.

  1. ghbrian

    ghbrian AK Subscriber Subscriber

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    I have a couple of Kenwood tuners, and more then one uses this 75 oHm coupler. I only have one of the reducers and would like to get two more, but I do not know their name of the part that unscrews from the 75 oHm mount. So please if you know where to purchase them and their name that would help me out greatly.

    75 1.jpg 75 2.jpg 75 3.jpg 75 4.jpg
     

     

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  2. Hyperion

    Hyperion Roobarb & Custard Subscriber

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    That's an SO-239 connector - with a PL-259 adapter on top of the case. ;)

    SO = Socket & PL = Plug.
     
    Last edited: Oct 22, 2018
  3. ghbrian

    ghbrian AK Subscriber Subscriber

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    Very good, thank you.
     
  4. Big Harry

    Big Harry Active Member

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    I would think that the connector would be called a PL259 to F connector. If you can't find the adaptor, you can use a PL259 connector with a reducer bushing for the size of coax you are using. If you go that way, there will be soldering involved to make the connections in the PL259.
     
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  5. avionic

    avionic " Black Knights " F-15 Eagle Keeper Subscriber

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  6. Punker X

    Punker X Moderator Moderator Subscriber

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  7. rcs16

    rcs16 AK Subscriber Subscriber

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    Funny thing about the old Motorola PL259/UHF connector, is that it is not very good for RF/UHF frequencies since it is not a controlled Z type of connector. In other words it is not a very good 50 ohm RF conn.
    Motorola used it because a proper "N" connector was a lot more expensive.
    An "F' is crap as well, but it is a standard of the cable TV industry, so cheap to make as well.
    Both are good enough for this application, since you are not too worried about impedance mismatches.
     

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