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qmx-modifications-extension

QMX+ modifications and extension DRAFT (release 2026)

QMX+ is 160-6m multi-mode transceiver from QRP Labs

  • The basic modification is to replace the original aluminum box with a 3D printed Waterproof rugged box
    • This modification allows you to use the internal GPS antenna as an extension and the expandable bottom box as a storage for parts needed for use in one common storage. For example, a modem, a telegraph key, an antenna, and so on.
  • Three extensions are also available
    1. Internal GPS antenna of maximum built-in size for greater gain
    2. Board expanding the functionality of
      • USB-C power delivery power input
      • battery power supply using three 18650 LiPol cells
      • BMS
      • battery charger
      • 12V default 9V optional (available only when powered externally from USB-PD or 13.8V, the internal battery is not used, nor is it charged)
      • power filtering
      • audio amplifier for internal speaker
    3. Rear panel plate accessing new connectors and internal speaker mounting
qmx-modifications-extension.txt · Last modified: by ok1hra