[Elecraft] K3/ Microkeyer/N1MM lockup at FD

[Buck - k4ia]

The mighty K4TS, Rappahannock Valley Amateur Radio Club, 8A Field Day 
featured 1 K3 - mine on 40 CW.  40 CW made 925 contacts but only 854 
after eliminating the dupes.  The K3 really strutted its stuff and it 
was obvious what a superior rig it is when I went around and listened to 
what other radios were hearing - a mush of noise and IMD that made 
operating almost impossible Saturday night.  Several ops just gave up as 
the noise and close signals crushed their rigs.  They marveled out how 
clear the K3 sounded.  No news there.

I did have one glitch that happened several times.  I proffer it to all 
three groups for comment.
The setup was a K3, N1MM and a MicroHam MicroKeyer (the CW only model).

The keyer would start to auto-send CQ just as I heard a call.  When I 
hit a key on the computer keyboard (including the ESC key), the keying 
should stop and the radio go into receive mode.  Several times, the 
keying stopped but the radio remained frozen in transmit mode.  The PTT 
light was ON on the MicroKeyer, the transmit light was ON on the K3 and 
N1MM wouldn't respond.  Paddles plugged into the MicroKeyer did 
nothing.  The "fix" was to turn off the K3 and turn it back on again.  
That would release the PTT and all would go back to normal.  It didn't 
happen every time but it did happen a lot.

Anyone with any ideas, chime in.

-- 

Buck
k4ia