[Elecraft] K3 / P3 Bug?

[David McClain]

Hi,

A few weeks ago I upgraded my P3 and K3 to firmware P3 MCU: 1.16 and K3 MCU: 4.48. Since then, when I try to observe my Rb oscillator's 5th harmonic at 50 MHz, the P3 flatlines (no baseline noise at all, just a flat line), and when I try to adjust the Span of the P3 display it shows "nan" next to the span readout and refuses to adjust. 

Is this a known bug?

Dr. David McClain
dbm at refined-audiometrics.com