Custom Products for the Digital Radio Amateur Enthusiast
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Model DRA-3M (active mixer)
A Mixer - Multiplexer in a Metal Case
For mixing together Sound Cards, Pactor Modems, TNCs or other Modems.

      Limited Time - Introductory Pricing:    
        Only available Assembled & Tested
  • DRA-3M-DIN6 - $95.00 each.
  • DRA-3M-RJ45 - $95.00 each.
  • Balanced Transformer Option - for RJ45 Model Only - $25.00.
  • Optional AC Power Adapter - $15.00 each.
  • Optional DC Power Cord - $7.50 each.
  • Optional Cables - $10.00 - $12.00 each.

  • SHARES Stations - START HERE
    Download and read this document.

    PDF Help Document

    With SHARES recommendations & example diagrams.
    by Scott Currie NS7C



    Jump to the ordering section:   Mixers     Powering Options     Cable Options     DRAs


    Please do not substitute the DRA MIX-MUX for SHARES deployments.
    The MIX-MUX may not work properly with all radios and input devices and has NO case.


    Click any photo to make it larger.

    DRA-3M - Power End
    DRA-3M - Power End
    DRA-3M-DIN6 - Radio End
    DRA-3M-DIN6 - Radio End
    DRA-3M-RJ45 - Radio End
    DRA-3M-RJ45 - Radio End

    Brief Description - What is it, and why do I need it?
    These Mixers allows DRAs, SignaLink™ USBs or other sound cards and Pactor Modems (or other modems) to be connected to one radio - at the same time.

    The Mixers are the same with one exception - the radio port connector.
    The DIN6 model has a female Mini-DIN-6 Radio Connector.
    The RJ45 model has a female RJ45 Jack.
    Both Mixers have Mini-DIN-6 female input connectors (SC-1 & SC-2).
    A balanced TX audio transformer option is available for the RJ45 model. Please email for availability and special ordering instructions.

    The DIN6 model is great for radios with a matching Mini-DIN-6 Data port.
    The RJ45 model uses radio cables and configuration modules made for the Tigertronics SignaLink™. (Available directly from Tigertronics or an Authorized SignaLink™ Dealer), and works with virtually hundreds of radios.

    Support Documentation:
    Detailed description and other support documentation

    This is an active mixer and requires a clean source of power.

    An optional AC power adapter is available below. This power adapter has been tested for RF emissions and is nice and clean - both from an RF interference standpoint and a DC power standpoint. The DC Power Jack is a standard coaxial DC socket 2.1mm X 5.5mm. A DC Pigtail Power Cable for connecting to a conventional 12V DC power supply or battery is also available.

    The center pin is positive - sleeve is negative.

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


    Mixers
    All - Assembled & Tested with Metal Case (Black, Blue or Red)

    DRA-3M-DIN6 Mixer

    Case Color

    With DIN-6 Output Connector



    DRA-3M-RJ45 Mixer

    Case Color

    With RJ45 Output Connector


    Powering
    DRA-3M AC Power Adapter - 120VAC US Plug - 12V @ 1A DC


    DRA-3M DC Power Cord - Pigtail 3-Foot Length


    Cables   Quantity can be changed in the Cart

    Add a 6 foot DRAC-12 Radio Cable


    Add a 3 foot DIN6-Shortie Radio Cable


    View Cart

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


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

    Product of Masters Communications, all rights reserved.
    SignaLink™ and SignaLink USB™ are trademarks of Tigertronics.
    The use of the name SignaLink and/or SignaLink USB is only in reference to this product.
    No infringement for such use is intended.
    Specifications may change without notice.
    Images are property of Masters Communications.
    Photos by Scott Currie - NS7C
    Concept inspired by Walter Kaelin - KB6BT
    Board layout and final design by Kevin Custer - Masters Communications
    HTML January 14, 2023, W3KKC - All Rights Reserved!