New K3 - No TX Audio

[Brad Pioveson W9FX]

One of the three new K3's we purchased for use at our state RACES
station has no TX audio.  All three were unpacked today, and, the first one
to see the light of day (and, an antenna) doesn't know it has a mic attached
to it.  The PTT works, there's just no audio at all into the rig.  Nothing
is heard via
the monitor, no ALC action, nada.  The transmitter is working as it
generates 100W of CW.  The ops are reporting that they simply have no TX
audio.

The other two K3's worked normally when hosed up to the same mic.

I've had the ops walk thru the quick set-up chart, checking the CMP/ALC and
mic gain
settings a couple of times with the same result each time.

I'm not with the radios, so, having to do some coaching from the sidelines.

Suggestions?

73


Brad, W9FX

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[IZ5FSA]

Hi to all.
My K3 works fine, but with PSK31 and Microham Microkeyer II I have no
output signal.
Is there an OM who resolved these troubles?

73 de Leo IZ5FSA
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[Stephen Prior]

Is the microphone an electret type?  If so you would need to turn on the
bias - the manual (not in front of me at the moment) tells you how.

73 Stephen G4SJP


On 06/11/2010 18:03, "Brad Pioveson W9FX" <[hidden email]> wrote:

>
> One of the three new K3's we purchased for use at our state RACES
> station has no TX audio.  All three were unpacked today, and, the first one
> to see the light of day (and, an antenna) doesn't know it has a mic attached
> to it.  The PTT works, there's just no audio at all into the rig.  Nothing
> is heard via
> the monitor, no ALC action, nada.  The transmitter is working as it
> generates 100W of CW.  The ops are reporting that they simply have no TX
> audio.
>
> The other two K3's worked normally when hosed up to the same mic.
>
> I've had the ops walk thru the quick set-up chart, checking the CMP/ALC and
> mic gain
> settings a couple of times with the same result each time.
>
> I'm not with the radios, so, having to do some coaching from the sidelines.
>
> Suggestions?
>
> 73
>
>
> Brad, W9FX
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

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[Don Wilhelm-4]

  Leo,

Are you feeding the Microkeyer II into the K3 line in?  If so, there is
a jumper in the Microkeyer to increase the audio output from microphone
level to something near line level.  I cannot say which jumper it is,
but I recall there is one - look in the Microham documentation.

As a quick check, plug the Microham into the rear microphone jack and
see if that produces audio for you - if so, look for the means to
increase the level of audio coming out of the Microkeyer II.

73,
Don W3FPR

On 11/6/2010 2:36 PM, IZ5FSA wrote:
> Hi to all.
> My K3 works fine, but with PSK31 and Microham Microkeyer II I have no
> output signal.
> Is there an OM who resolved these troubles?
>
> 73 de Leo IZ5FSA
>
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[Joe Subich, W4TV-4]

Don,

>> Are you feeding the Microkeyer II into the K3 line in?  If so, there is
>> a jumper in the Microkeyer to increase the audio output from microphone
>> level to something near line level.

Please do not provide incorrect information regarding microHAM
products.  The *IS NO JUMPER* for the audio output level in
microKEYER II (or any microHAM interface).

>>> My K3 works fine, but with PSK31 and Microham Microkeyer II I
>>> have no output signal.

Do you have the "FSK/DIGITAL" on Router's Audio Switching panel set
to "Line input (Rear)"?

Is the K3 in DATA A mode?

Do you have the K3 audio input set to "Line In" - MAIN:MIC SEL =
Line In?

Have you set the Line In level properly (advance Mic Gain for 5 bars
of ALC)?

Have you connected the Line In and Line Out connectors from the
microHAM DB37-EL-K23 or DB37-EL-K3R to the correct jacks on the
K3?

Is Router set up properly for use with the K3 and is there a black
box around the FSK/DIGITAL box on the Audio Switching tab?  That
indicates Router is properly deciding the K3 DATA mode.

73,

    ... Joe Subich, W4TV
        microHAM America, LLC.
        http://www.microHAM-USA.com
        http://groups.yahoo.com/group/microHAM


On 11/6/2010 2:48 PM, Don Wilhelm wrote:

>    Leo,
>
> Are you feeding the Microkeyer II into the K3 line in?  If so, there is
> a jumper in the Microkeyer to increase the audio output from microphone
> level to something near line level.  I cannot say which jumper it is,
> but I recall there is one - look in the Microham documentation.
>
> As a quick check, plug the Microham into the rear microphone jack and
> see if that produces audio for you - if so, look for the means to
> increase the level of audio coming out of the Microkeyer II.
>
> 73,
> Don W3FPR
>
> On 11/6/2010 2:36 PM, IZ5FSA wrote:
>> Hi to all.
>> My K3 works fine, but with PSK31 and Microham Microkeyer II I have no
>> output signal.
>> Is there an OM who resolved these troubles?
>>
>> 73 de Leo IZ5FSA
>>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

--


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