Elecraft firmware changelog

306 releases tracked, newest first.

  1. K4 vR38 first tracked Production release of beta version with known FSK RTTY limitation

  2. KPA1500 v3.06 first tracked

  3. KAT500 v2.15 v2.16 Fixes Kenwood memory channel IF response handler.

  4. KAT500 v2.14 v2.15

  5. KAT500 v2.13 v2.14

  6. KAT500 v2.10 v2.13 New ATU settings per bin feature limits stored settings per frequency segment; fixes band-change stutter.

  7. KAT500 v2.08 v2.10

  8. KAT500 v2.07 v2.08

  9. KX3 v2.98 v3.02 Extended CW mode operation at lower supply voltage and fixed ACC IO sidetone.

  10. KX2 v3.01 v3.02 CW mode now allows 10W with 9V supply minimum for extended battery operation

  11. KAT500 v2.05 v2.07

  12. KX2 v3.00 v3.01 Adds KXIBC2 battery charger support with voltage monitoring and automated charging

  13. KAT500 v1.79 v2.05 Adds support for multiple transceiver brands, improves frequency tracking, and realigns band boundaries.

  14. KX2 v2.97 v3.00 LPF relay control improved with longer pulses for temperature reliability; optional jumper workaround available.

  15. KX3 v2.95 v2.98

  16. KX2 v2.94 v2.97 Improved ATU tuning reliability at voltages as low as 8.5V.

  17. K3S v5.66 v5.67 Adds 6-meter attenuation configuration for KPA3A; improves transmit/receive timing.

  18. KX3 v2.90 v2.95 Added SWR read command and improved AM mode TX power control

  19. KX2 v2.89 v2.94 Added SWR command; improved AM mode TX power control.

  20. K3S v5.64 v5.66 Adds SWR read command to retrieve standing wave ratio data via remote control.

  21. KAT500 v1.75 v1.79 Added SWR protection to interrupt amplifier key line when threshold exceeded in all modes.

  22. K3S v5.63 v5.64 'HI CUR' threshold in receive mode increased to prevent false warnings and speaker disabling.

  23. KPA500 v1.52 v1.54 Internal factory settings added to optimize production.

  24. KX3 v2.85 v2.90

  25. KX2 v2.86 v2.89 FM mode added for repeater and transverter use (experimental); mic remote functions temporarily disabled.

  26. KX3 v2.83 v2.85

  27. KX2 v2.84 v2.86 Maximum power output increased to 12W on 80-20 meters for light-duty operation

  28. K3S v5.62 v5.63 KPA1500 can now control ATU TUNE with a single switch tap via ACC cable.

  29. KX2 v2.81 v2.84

  30. K3S v5.61 v5.62 New TM command lets you switch transmit metering between SWR/RF and CMP/ALC.

  31. KX3 v2.82 v2.83

  32. KX3 v2.76 v2.82 Sidetone volume adjustable lower, VFO A lock prevents accidental tuning, auto-off timer range expanded.

  33. KX2 v2.80 v2.81 MH3 PTT double-tap reports frequency in Morse code, plus extended radio control features.

  34. KX2 v2.79 v2.80

  35. KPA500 v1.49 v1.52

  36. KX2 v2.77 v2.79 Auto-off timer extended to 100 minutes, VFO A lock prevents accidental tuning, and sidetone volume adjustable lower.

  37. K3S v5.60 v5.61

  38. KX2 v2.75 v2.77 Adds built-in logging to capture transmitted CW and data text with time and band.

  39. K3S v5.59 v5.60 Fixed macro command loss issue and added new DE remote-control command for delays.

  40. K3S v5.58 v5.59 Fixed power control bug causing unexpected TX carrier activation.

  41. KX3 v2.72 v2.76 Dual ATU data sets for different locations, restored AF gain, finer control increments.

  42. KX2 v2.73 v2.75 Added four programmable function buttons for quick menu access.

  43. KX2 v2.71 v2.73 Internal ATU now stores two separate data sets for different locations or antennas

  44. K3S v5.57 v5.58 PREAMP 2 now usable on 15/17M bands, TX monitor level adjustable, K-Pod messaging fixed.

  45. KX3 v2.70 v2.72 Fixed sidetone hang in digital modes and corrected PX3 preamp data updates.

  46. K3S v5.56 v5.57 Faster response to high reflected power, automatically reducing drive and restoring power when antenna match improves.

  47. KX2 v2.69 v2.71

  48. K3S v5.55 v5.56 Scanning below 1 MHz now works, K-Pod macro display less obstructive, TX command blocking prevents audio muting

  49. KX3 v2.52 v2.70 Scanning below 1.0 MHz now works properly, and host commands are blocked during transmit to prevent audio issues.

  50. K3S v5.54 v5.55 K-Pod now works in remote-rig terminal mode with basic control support.