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

[Ken K3IU]

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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