Elecraft KXPA100 Manual - Manual (Page 3)

3
Utility Program ..................................................................................................................................................... 34
Starting the Utility Program ................................................................................................................................................ 34
Updating KXPA100 Firmware ............................................................................................................................................. 34
Forcing a Firmware Load ............................................................................................................................... 35
Monitoring through the Utility Program ............................................................................................................................. 35
Amplifier ........................................................................................................................................................ 35
Faults Reported by the KXPA Utility ............................................................................................................ 36
Antenna Tuner ................................................................................................................................................ 37
Configuration Save and Restore .......................................................................................................................................... 37
Updating KX3 Firmware ..................................................................................................................................................... 37
Specifications ........................................................................................................................................................ 38
KXPA100 Amplifier.............................................................................................................................................................. 38
KXAT100 Antenna Tuning Unit (ATU) ................................................................................................................................ 38
Theory of Operation ............................................................................................................................................ 40
KXPA100 Amplifier.............................................................................................................................................................. 40
KXAT100 Antenna Tuning Unit (ATU) ................................................................................................................................ 41
ATU Memories .............................................................................................................................................. 41
Cable Schematics .................................................................................................................................................. 43
KX3-KPA100 Adapter Cable ............................................................................................................................................... 44
Serial Interface Cable .......................................................................................................................................................... 45
FT-817 Interface Cable ........................................................................................................................................................ 45
Appendix A: ALC Adjustment ........................................................................................................................... 46
Adjusting the KXPA ALC ..................................................................................................................................................... 46
Removing and Replacing the KXPA100 Bottom Cover ........................................................................................................ 47
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