If new firmware is available, click
Send Firmware to KAT500.
Firmware installation takes just a few seconds.
If you are using an Elecraft KPA500 Amplifier, or other amplifier whose key (PTT) line can be interrupted
while RF is present, set the Amplifier Key Interrupt Power
to 1500 watts by pressing the "Optimize for KPA500" button and then "OK" on the Edit Configuration dialog.