QRP Labs QCX+ firmware v1.00b

QRP Labs · Released Sep 6, 2017 · First seen Sep 7, 2026

Source: qrp-labs.com

v1.00b is not the latest firmware for the QRP Labs QCX+: the current version is v1.09a (April 28, 2022). Go to v1.09a

In short — summary by updatemystuff.com

Mode B keyer improvements and fixes for loud noise, stored message, and CW decoder issues.

  • Mode B keyer improvements
  • Loud noise and sidetone prevention
  • Stored message and CW decoder fixes

Written from QRP Labs's release notes, which are printed in full below.

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What's in this update

  • Several keyer improvements particularly to Mode B
  • Bug fix: transmit decode did not work well in Straight mode (​bug introduced in 1.00a)
  • Bug fix: prevent horrible loud noise sometimes if you enter menu while key is pressed
  • Bug fix: prevent right key very long press sometimes causing loud sidetone & low power out
  • Bug fix: stored message sending always sent the first message, regardless of se​lection
  • Bug fix: CW decoder did not work properly while editing menu items
  • Bug fix: When sending a stored message, the first character could be corrupted

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Other versions for this product

See the full firmware history for the QCX+