Custom Products from Masters Communications
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Model RA-42
For Two-Way Radio Applications

    Pricing:
  • Unassembled Kit - NO Case - $47.00 each.
  • Unassembled Kit with Plastic Case * - $62.00 each.
  • RA-42M Unassembled Kit with Metal Case (Blue or Black) ## - $77.00 each.
  • Assembled and Tested - NO Case - $77.00 each.
  • Assembled and Tested with Plastic Case * - $92.00 each.
  • RA-42M Assembled and Tested with Metal Case (Blue or Black) ## - $107.00 each.

  • * A Plastic RA-Case is available optionally in several colors - $15.00 each.
    ## The RA-42M comes with a blue or black metal case.

    Article on the differences between the RA-42 and RA-42M

    Shipping and handling is calculated at checkout for US and International orders.
    First-Class shipping available to most locations worldwide, calculated at checkout.
    PayPal accepted - order below.

    Looking for radio adapters for digital applications? See our new DRA-Series.



    RA-42 top photo - shown larger than actual size.
    (Click image to see bottom)

    TX CTCSS Logic Control:
    The RA-42 is a reconfigured RA-40 to include an additional open collector buffer transistor and Yellow LED status indicator. Here are instructions for the TX CTCSS option of HamVoIP. (offsite link)

    COS Activity Indication:
    By asserting a change of one of the GPIO on the CM119A, the Yellow LED can indicate receiver activity by following the software status of the COS. Some code is necessary to make this work and is different for HamVoIP and AllStarLink.

    In HamVoIP this code is necessary to make the COS LED option work.

    In AllStarLink this code is necessary to make the COS LED option work.


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    RA-42 Unassembled Kit (NO Case)


    RA-42 Unassembled Kit (With Plastic Case)

    Case Color - Use down arrow to choose.


    RA-42M Unassembled Kit with Black or Blue Metal Case

    Case (box) Color - Use down arrow to choose:


    RA-42 Assembled & Tested (NO Case)


    RA-42 Assembled & Tested (With Plastic Case)

    Case Color - Use down arrow to choose.


    RA-42M Assembled & Tested with Black or Blue Metal Case

    Case (box) Color - Use down arrow to choose:


    Shipping amount is calculated at checkout for shipping to most locations Worldwide.



    Support Documentation:
    Support Documentation - Schematic, Parts List, installation and set-up instructions for the RA-42.
    RA-42 Construction Article
    Summary Features List
    Detailed Description
    Plastic case for the RA-42
    RA-42M

    Custom cables available from URI Cables. They can build a custom cable for the RA-42 for many radios.

    Third Party Compatible Projects:
    MABEL is an interface and software that allows analog control of the Yaesu DR-1X repeater and access to the AllStar VOIP network with the Raspberry Pi3 and AllStar Asterisk. (Offsite Link)

    Email Kevin Custer for ordering information, ordering by check, and/or support of this product.

    Product of Masters Communications, all rights reserved.
    Specifications may change without notice.
    Images are property of Kevin Custer - W3KKC
    Board layout by Kevin Custer - W3KKC
    HTML March 10, 2018, W3KKC All Rights Reserved!