[Elecraft] K3 BETA FIRMWARE RELEASE -- MCU rev 1.94

[Paul Christensen]

I'm not sure if this has been mentioned before, but after a F/W upgrade, I 
found that I need power down the K3, then re-press the power button. 
Otherwise, some anomalies exist, including elevated headphone hiss and 
slight clicks in the monitor when sending CW.    I've now noticed this on at 
least the last two F/W upgrades.  Re-booting the power immediately after the 
flash has cleared the issue every time.

Paul, W9AC