MMX Multi-band Morse Code Transceiver
MMX Multi-band Morse Code Transceiver
MMX Multi-band Morse Code Transceiver
MMX Multi-band Morse Code Transceiver
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The DMX-40 Evolves!  Introducing the MMX Multi-Band Morse Code Transceiver!

Introduced on March 12, 13 at the QSO Today Virtual Ham Expo

The MMX Multi-band Morse Code Transceiver is the evolution of the DMX-40+ Morse Code Transceiver.  It has the same industry-leading decoder, the same high sensitive SDR receiver, and the other powerful features found in the DMX-40+, including 10 frequency memories per band, as well as all of the other great and unique features of the DMX-40.  However, what is added is a band board plug-in system that supports up to 3 bands.  Currently, the supported bands include 80, 40, and 20 meters.  You can purchase a single band MMX, and add other bands later, purchase a dual band MMX, and add the third band later, or even get all three bands on your initial order!

Specifications are similar to the DMX-40+, such as receiver sensitivity of -119 dBm.  Power output is highest on 40 meter, and slightly lower on 80 and 20 meter bands.

The MMX Multi-band Morse Code Transceiver eliminates the need for an external transceiver to get additional bands - you can pack just the MMX in your travel bag, and forget the other transceiver you needed to operate on 20 or 80 meters in the past.




The MMX Morse Code Transceiver is a hit, and we continue to receive orders at a rate exceeding our expectations.  Thus, our delivery times do not comply with our delivery policy, and are running around 2-3 weeks late.  We apologize for that, and are working diligently to reduce the time from order to ship.  Thank you for your orders, and we recommend not waiting to place an order, as new orders continue to come in.  The most popular configuration is the 80/40/20.

MMX Multi-band Morse Code Transceiver

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The MMX Morse Code Transceiver is a new product, so we do not have any user comments yet.
  • Finally, the true power of the DMX-40 GUI and programming released by a multi-band, card caged transceiver motherboard!
  • Same amazing feature set as DMX-40, but now with multiple bands!
  • Simple GUI for multi-band operation.  The Frequency Button is also the Band button!
  • Unparalleled Decoder Capability in Noisy Environments:  With its unique signal processing algorithms, the Morse Code decoder outperforms all others.
  • Type and Read in English:  Use the included QWERTY keyboard to type, while hearing outgoing and in incoming Morse Code, aiding in learning the code subconsciously.
  • (Optional) Learn Morse Code:  The included Morse Code Key-In capability with built-in decoder testing aids in learning the Code.
  • Automated Send/Receive Protocols:  Enter your call sign and other information for station setup.  Remote station call sign captures automatically.  All call and answer protocols are automatic – you only type your message.  Or change the protocol via built-in micro-program editor.
  • Set your maximum comfortable typing speed:  While the MMX can send very fast, it’s best to limit speed so you don’t starve the transmitter.  A unique feature that maximizes the use of the type-ahead buffer in transmit mode calculates your comfortable typing speed automatically.
  • Super Power Micro-programming System:  Besides simple automating common text segments, the micro-programming system allows control over the transmitter, enabling many advanced features.  12 micro-programs up to 60 characters each.


Click Here for a Complete Features List

  • Multi-band:  up to three bands supported via a three-slot card cage on the motherboard.  Auto-sensing and auto-selecting via sense/select hardware on the motherboard  - any slot for any plug-in band board.  Use the Frequency button on the Main screen to select which band card to use.  Currently available bands are detected automatically and offered via the Frequency button.  80, 40, and 20 meter band boards are currently available.
  • Advanced Direct Conversion SDR Receiver: with custom filter, balanced mixer, and low-noise preamp giving sensitivity 0.3µV, -118 dBm or better
  • GUI: 3.5″ color touchscreen LCD
  • Weight: 11 oz with protective lid
  • Size: 3.8″ x 5.2″ x (1.3″ w/o lid, 2.25″ w/lid)
  • Power Consumption, receive:  1.4/0.96 watt, LCD backlight ON/OFF
  • 80 meter band:  3.5 MHz - 4.0 MHz. SWL range: 2.45 - 5.6 MHz
  • 40 meter band:  7.0 MHz - 7.3 MHz. SWL range: 4.9 MHz - 10.22 MHz
  • 20 meter band:  14 MHz - 14.35 MHz.  SWL range: 9.8 MHz - 20.09 MHz
  • 80M Power Output @ 13.8V:  approx. 2 W, 350 ma (key down)
  • 40M Power Output @ 13.8V:  approx. 3 W, 500 ma (key down)
  • 20M Power Output @ 13.8V: approx. 1.5W, 350 ma (key down)
  • Key up power @ 13.8V: approx. 110 ma, 1.5 watts (LCD ON)


The MMX Morse Code Transceiver combines a state-of-the-art decoder, a color touchscreen graphical user interface (GUI), a Software-Defined Receiver (SDR) and a QRP (Low Power) transmitter, all powered off of a 12V power source, packed into a small, lightweight and very portable package. The decoder uses innovative digital and analog signal processing circuitry and algorithms to overcome the typical noise found in most real band operating conditions.GUI for countless features

The GUI includes a full menu system, and 28 unique graphic screens to accomplish an amazing set of features, some not found in transceivers at any price.  SDR receiver sensitivity is -118 dBm.


Automated functioning

Computer automation simplifies the process of calling and interacting with automated station ID’s and remote station call sign capture. The built-in automation can be user-modified using the powerful microprogramming language RPL (Rig Programming Language), with unique capabilities.


Multi-Band via Plug-in Band Boards

The MMX includes three plug-in slots for band boards.  From 1 to 3 bands can be directly supported.  Currently available:  80, 40, and 20 meter band cards.


Operate on any band

Operating modes include normal transceiver mode and the unique External Mode, which allows operation with an external transceiver. Using this feature, operation an any band with the full decode and encode function, including automation, is possible.

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