QRP Labs QMX firmware v1_03_002

QRP Labs · Released Feb 7, 2026 · First seen Sep 7, 2026

Source: qrp-labs.com

v1_03_002 is not the latest firmware for the QRP Labs QMX: the current version is v1_04_015 (September 24, 2026). Go to v1_04_015

What's in this update

CAT programming manual

  1. Bug fix: DTR keying would only wor​k on USB 1, not on 2 or 3
  2. USB audio monitor during SSB transmit, volume adjustable in SSB menu
  3. Remove spurious 1.00000 on terminal bottom left, on releasing PTT in SSB ​TX
  4. Bug fix: PTT_P was ON by default at power-up, until first TX occurred
  5. Bug fix: Removed loud pop when changing bands

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Other versions for this product

See the full firmware history for the QMX