QRP Labs QCX+
firmware v1.01
QRP Labs · Released Oct 7, 2019 · First seen Sep 7, 2026
Source:
qrp-labs.com
v1.01 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
Transmission allowed during RIT/keyer adjustment, improved keyer responsiveness, added VFO copy shortcuts, and fixed bugs.
- Transmission enabled while adjusting RIT and keyer speed
- Improved keyer responsiveness by disabling DSP on transmit
- Fixed tuning during transmission causing noise in headphones
Written from QRP Labs's release notes, which are printed in full below.
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What's in this update
- Allow transmission while RIT adjustment is active
- Allow transmission while keyer speed adjustment is active
- Copy VFO A to B by Right button long press then Right button short press (within 1 second)
- Copy VFO B to A by Right button long press then Right button double press (within 1 second)
- Switch off DSP during transmit, improves responsiveness of keyer (DSP is not used during transmit)
- Break character -...- changed from | to = on display
- Dynamic calculation of Si5351A divisor rather than from a table based on band; enables changing band by preset freq
- Remove menu 3.9 (Band) - no longer relevant
- When in practice mode, 'P' is now displayed to the right of the frequency on the top row
- New menu 4.10 "Strght mode", choice of Both/Tip/Ring (so mono jacks can work)
- New menu 7.8 "Custom splsh", enables message 11 & 12 to be used as splash screen on power up (Factory reset is now 7.9)
- Automatic protection against GPS keying the transmit; when GPS detected, automatically enters practice mode
- WSPR encoding now re-encodes WSPR one transmit cycle sooner, in cases where the Maidenhead grid changed
- Bug fix: IAMBIC A mode keyer bug
- Bug fix: Disappearing S-meter after changing some unrelated parameters in the menu
- Bug fix: When CW decoder and S-meter both enabled, some digits of frequency display could get corrupted
- Bug fix: Tuning while keying resulted in loud tone in headphones. Tuning during key-down is now disabled
- Bug fix: Incorrect built-in bias caused CW decoder to track sending speed faster than it really was. Fix improves decoder
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