Changelog

Elecraft firmware changelog

306 releases tracked, newest first.

  1. KX3 v0.89 v0.90 Multi-mode channel scanning added for SSB and CW bands.

  2. KX3 v0.88 v0.89 Adds AM transmit capability and refines power control with 0.1-watt increments below 1 watt.

  3. KX3 v0.87 v0.88 Fine power output adjustment with ALC off and increased microphone gain.

  4. KX3 v0.84 v0.87 Adds FM transmit with CTCSS tones, improves QSK CW, and introduces remote control mode.

  5. KX3 v0.83 v0.84 AM receive added; RF gain in FM mode set to -0 dB and controls squelch only.

  6. KX3 v0.82 v0.83 Adds DATA-A and AFSK-A modes, FM squelch, and TX noise gate; increases TX current to 3A with external power.

  7. KX3 v0.81 v0.82 FM receive capability added and CW text decode improved with threshold options.

  8. KX3 v0.80 v0.81 Adds CW audio feedback on switches, sets PA thermal limit to 64°C with 5W fallback, updates 4.5 MHz+ filters.

  9. KX3 v0.78 v0.80

  10. KX3 v0.78 first tracked PSK-D prosigns fixed, menu help access changed, no transmit below 1.7 MHz.

  11. K3S v4.47 v4.48 K3/0 units now skip self-tests for non-populated hardware, enabling faster power-up.

  12. K3S v4.46 v4.47 GT control command for AGC is now more robust against accidental disabling.

  13. K3S v4.43 v4.46 One K3 can now directly control another K3 as a remote front panel via RS232 or internet.

  14. K3S v4.42 v4.43 Power control command now works with transverters; preliminary REMOTE-RIG mode support added.

  15. K3S v4.40 v4.42 Automatic offset configuration for 2-meter module; K3EXREF auto-calibration features added.

  16. KPA500 v1.02 v1.11 Improved ALC threshold resolution, fixed 6m SWR jumping, and raised HV maximum to 90V

  17. K3S v4.39 v4.40 Error tones no longer automatically emitted on KPA500 switching events.

  18. K3S v4.38 v4.39

  19. K3S v4.37 v4.38 Improved SWR measurement sensitivity on 6 meters and enhanced bar graph remote control.

  20. KPA500 v1.01 v1.02 Added demo mode toggle and power-on operating mode selection as persistent menu options.

  21. KPA500 v1.01 first tracked

  22. K3S v4.36 v4.37 Adds antenna warnings and improved power error checking; RX antenna switching notifies devices; experimental S-meter.

  23. K3S v4.31 v4.36 KPA500 amplifier integration adds band switching, fault status display, and separate per-band power control.

  24. K3S v4.25 v4.31 Reverse for FM/repeat is now permanent, front panel mic preamp gain accessible, and QRQ CW auto-off added.

  25. K3S v4.22 v4.25 P3 gains fixed-tune mode for constant display range; fixes A/B switch issue with filter setups.

  26. K3S v4.15 v4.22 Adds Audio Peaking Filter for weak signals, fixes SSB power and AutoNotch bugs.

  27. K3S v4.14 v4.15

  28. K3S v4.13 v4.14

  29. K3S v4.12 v4.13 P3 now correctly tracks VFO after A/B and REV switch presses; band changes faster

  30. K3S v4.06 v4.12 Fixes K3-to-P3 serial communication for VFO tuning, eliminates 6-meter power gap, adds independent DVR monitoring.

  31. K3S v4.05 v4.06

  32. K3S v4.03 v4.05

  33. K3S v3.97 v4.03 Supports 100 WPM QRQ CW mode and 75-baud RTTY, improves AF balance control, fixes stuck sidetone.

  34. K3S v3.94 v3.97 TX inhibit mutes audio tones for audible feedback, DSP noise blanker improved, CW keying artifacts eliminated.

  35. K3S v3.84 v3.94 Adds K3 Memory Editor for frequency memory management, separate CW receive EQ and SSB transmit EQ, and P3 Panadapter support.

  36. K3S v3.79 v3.84 European repeater operation improved with new VFO steps and enhanced 1750-Hz PL tone features

  37. K3S v3.78 v3.79 RX antenna can now be switched during transmission; eliminated spurious error messages on startup.

  38. K3S v3.77 v3.78 Fixes VFO B text display, AM 9 kHz tuning errors, and audio artifacts in BIN effect.

  39. K3S v3.76 v3.77 Fixes frequency offset in diversity mode, sub-receiver band-pass filter selection, and audio artifacts in BIN mode.

  40. K3S v3.68 v3.76 Improved FM reception, 40-m TX range extended, and repeater reverse feature added

  41. K3S v3.66 v3.68 AF output protection enhanced and AF LIM menu made accessible; 6m synthesizer stability improved.

  42. K3S v3.63 v3.66 Automatic AF output protection prevents speaker clipping; improved VCO settling and SPI timing.

  43. K3S v3.59 v3.63 PTT behavior with DVR clarified; new RX command cancels DVR playback; CONFIG:DIGOUT1 accessible via command.

  44. K3S v3.57 v3.59 Adds SWR indicator tones after ATU tuning, improves AM sync tracking, and fixes FSK-D mode switching.

  45. K3S v3.52 v3.57 Synchronous AM receive with automatic VFO tracking added; NR double beep and DATA A power loss fixed.

  46. K3S v3.44 v3.52 Adds switch macros and main/sub audio mixing; fixes audio artifacts and CW interruption.

  47. K3S v3.42 v3.44 TUNE/ATU TUNE fixed for DATA A split; squelch and noise reduction improvements.

  48. K3S v3.41 v3.42 Fixes squelch control at maximum rotation and HRD polling timeout.

  49. K3S v3.30 v3.41 Enhanced RX bass response in voice modes; live memory recall; extended 6-meter tuning to 44 MHz.

  50. K3S v3.27 v3.30 Expanded NR to 32 settings, fixed BSET noise blanker control, eliminated NR+autonotch audio artifact