[Elecraft] K3 Momentary no transmit

[Ken K3IU]

Hi Jim:

Now that you mention it, I do recall something about this in 
the recent past on the reflector. I did my previous test in 
CW mode putting RF into a dummy load and heard no momentary 
drop out. I just tried the setup that you suggested below in 
LSB and I must have one of the rigs that don't produce it 
because I am not hearing any interruption at any interval.

Thanks for the info...
73, Ken K3IU
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

On 11/23/2015 9:34 AM, Jim - N4ST wrote:
> Ken,
>
> This is firmware problem acknowledged by Elecraft, and previously discussed
> in this forum
> If you don't do digital comms, one of the easiest ways to see this is to put
> the rig in TEST mode and turn on the 2-tone test.  Monitor the "transmit"
> signal with headphones and you will hear it drop out every 15 seconds.  The
> dropout is just for a few milliseconds and sounds similar to a WWV "tick".
>
> There may be some variability in rigs, though I doubt it.  When I was
> trouble shooting the problem with Elecraft support, they were unable to
> duplicate the problem with the rig they initially had on the bench.
>
> _________
> 73,
> Jim - N4ST
>
> -----Original Message-----
> From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Ken
> K3IU
> Sent: Monday, November 23, 2015 03:44
> To: N7FN at comcast.net; elecraft at mailman.qth.net
> Subject: Re: [Elecraft] K3 Momentary no transmit
>
> G'morning, Frank:
> I just tried to duplicate what you are experiencing and was unsuccessful. No
> interruptions. K3 #202 with latest firmware.
> 73, Ken K3IU
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> On 11/22/2015 8:54 PM, N7FN at comcast.net wrote:
>> I discovered a problem with my K3, s/n 83xx.
>> With nothing but power and a dummy load connected to the K3, while in
>> TUNE on 10 meters, PWR adjusted to 15 watts, the K3 momentarily stops
>> transmitting every 15 seconds.
>> When I push the TUNE button it starts transmitting.  After
>> 15 seconds the K3 momentarily stops transmitting for about a
>> millisecond, again at 30 seconds, again at 45 seconds, and again at 60
>> seconds and so on.
>> The same result in both CW and DATA modes.
>> If I reduce the power to under 12 watts, the K3 transmits continually.
>> Has anyone experienced or duplicated this characteristic with their
>> K3?
>>
>> Thanks/73,
>> Frank
>> N7FN
>>
>>
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