[Elecraft] Transmit when switching from DATA to AM mode?

[Ron D'Eau Claire]

Not seeing that here using MCU Rev 2.76, FPF .02, DSP 1 and 2  1.98. 

 

Ron AC7AC

 

From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Ken K3IU
Sent: Friday, December 26, 2008 4:00 AM
To: K3Support at elecraft.com
Cc: Elecraft Reflector
Subject: Re: [Elecraft] Transmit when switching from DATA to AM mode?

 

I just checked again and the K3  *IS* showing "END" when the the K3 is tuned
out of band. Definitely no ERR TXF message, though.
73, Ken K3IU
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Ken K3IU wrote: 

Similar behavior here with K3 #202. However it only happens when in VOX
mode... not in PTT mode. No ERR TXF or END displayed. Red Tx LED is on for
about 1 second, probably less. I do see a jump in amps on the K3 display to
about 8 or so amps. I do have the 6 kHz filter installed and enabled. 

Ken K3IU
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
John Buck wrote: 


I confirmed on K3 #125 with V 2.76, the behavior described by KB8AP below. 
I also noted that the power supply jumps up to the level expected for the
power setting. 
So I believe that it is attempting to transmit during the second or so of
the transient. 
This is not a good thing.  I do not have a 6 kHz filter installed. 

John KH7T 

Hi all, 

I've just discovered something odd with my K3 (#1772).  When I switch mode
from DATA to AM via the front panel Mode button, the rig tries to transmit.
The red TX light comes on momentarily and I get a ERR TXF message (if in
band) or an END message (if out of band) in the VFO B area.  I don't have
the AM filter installed, so I don't think anything is actually going out
over the air, but it doesn't seem like the rig should ever go into transmit
on a mere mode change. 

It ONLY happens when going from DATA to AM, not when going from FM to AM or
between any other modes in either direction.  There is no mic connected to
the rig, nor anything connected to the rear panel mic or line inputs.  The
only things connected to the rig are a paddle, an external speaker, and the
antenna.   It happens whether in VOX or PTT mode. 

I first noticed it with MCU 2.67 (although I can't say if it happened with
earlier versions.)  I've updated to the 2.76 beta release and it still
happens. 

Anyone else see this? 

73 

 



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