[Elecraft] Revisited: Glitch when using USB Keyboard on P3 to send CW via K3

[Kbeckman@wi.rr.com]

Well, it seems I was a little fast in determining that setting the P3 
"Transmit Timeout" to 1000, fixed the issue.  It actually just masks the 
underlying problem, but doesn't really fix it.

The problem is that the K3 is not staying in transmit long enough for CW 
characters to be sent.  The correct character is being sent to the K3, but 
the K3 truncates the character by turning off transmit too soon.  Setting 
this timer to 1000 (milliseconds) just gives the K3 a little extra time to 
stay in transmit, but created another problem for me.

While running my P3 with this timer at 1000 and the K3 at MCU 5.60 and P3 at 
MCU 1.60, I encountered an issue.  On occasion my P3 'text' macros would 
stop transmitting after 1 second.  Weird thing was, this wouldn't happen all 
the time, but once it did start, it would continue until the rig was turned 
off.  Sometimes simple things like a band change would trigger this to 
occur.  I increased the timer to 20,000 (20 seconds) and that resolved this 
Macro issue, but created a different issue.  I tried to let Elecraft 
troubleshoot this, but they could not recreate it, and they wanted me to 
send my P3 back to them.

This had all worked fine, until I upgrade my K3 and P3 firmware a month ago. 
If you look in your PC, you can figure out what your previous version of F/W 
were.  Simply deleting the newer hex files, allows you to re-flash your old 
versions.

Just for grins, I flashed the P3 back to 1.29 first.  This did NOT fix it. 
Rolling the K3 back to 5.14 fixed it.  I looked through the F/W updates 
between 5.14 and 5.60, and nothing popped out dealing with this directly, 
but I suspect the code for the vox in the K3 was changed somewhere to fix 
something else, causing the issue with the P3.

Bottom line is everything works fine now using these old F/W versions.

Hallelujah!

Keith
K9GL