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Differences between the Model RL-20 and RL-20M.
What's different and what's not.


Quick Explanation:
The RL-20M radio interface is made specifically for our smallest extruded & anodized Metal Case. This "M" Series radio interface has the same high-performance as our RL-20, but is not really intended for radio less applications. Some of the radio less board connections were eliminated, as it would be impossible to connect anything to them because of the metal case. The RL-20M is not available in a board only version. Please choose the RL-20 for radio-less applications.

The RL-20M is mechanically refined - the circuit board is a slightly smaller, and all LEDs are on the front panel. As such - it's not possible to put a RL-20 circuit board into the metal case for the RL-20M.

   
RL-20 circuit board compared to a RL-20M




We currently make the following M Series products:

  • DRA-30M
  • DRA-36M
  • DRA-39M
  • DRA-45M
  • DRA-50M
  • RA-25M
  • RA-33M
  • RA-35M
  • RA-38M
  • RA-40M
  • RA-42M
  • RA-47M
  • RA-DR1XM
  • RL-20M

    Email Kevin Custer for ordering information, ordering by check, and/or support of this exciting 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 July 12, 2025 - W3KKC All Rights Reserved!