KX3 Voice Monitor (MON)

[David Ahrendts]

Newby KX3 question: how accurate a representation of voice and transmission characteristics does the Voice Monitor provide on SSB (with accurate headphones, not the KX3 speaker)? Is it approximate, or actual?

David Ahrendts, KC0XT, LA
KX3, KXPA500, PX3



David Ahrendts   [hidden email]  




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[Lyle Johnson]

The voice monitor in SSB is the processed and filtered I channel of the
IQ audio stream. Since I and Q baseband signals are combined in the
transmit mixer and not the DSP, the resulting monitor audio is an
extremely close but slightly imperfect representation of the transmitted
signal.

On a practical basis, they should be the same.

Note that the KX3 has a great tool for adjusting Tx EQ and CMP. Record
your voice using the DVR, then play it back using MON. Adjust Tx EQ and
CMP and play back the sample and you will be able to hear what your
signal will sound like to the other station. Doing this "live" with a
microphone is not nearly as effective due to bone conduction of your
voice to your ears.

Enjoy!

73,

Lyle KK7P

> Newby KX3 question: how accurate a representation of voice and transmission characteristics does the Voice Monitor provide on SSB (with accurate headphones, not the KX3 speaker)? Is it approximate, or actual?

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[David Ahrendts]

Thanks, Lyle. I will try it. 73s.

> On Nov 19, 2014, at 5:43 AM, Lyle Johnson <[hidden email]> wrote:
>
> The voice monitor in SSB is the processed and filtered I channel of the IQ audio stream. Since I and Q baseband signals are combined in the transmit mixer and not the DSP, the resulting monitor audio is an extremely close but slightly imperfect representation of the transmitted signal.
>
> On a practical basis, they should be the same.
>
> Note that the KX3 has a great tool for adjusting Tx EQ and CMP. Record your voice using the DVR, then play it back using MON. Adjust Tx EQ and CMP and play back the sample and you will be able to hear what your signal will sound like to the other station. Doing this "live" with a microphone is not nearly as effective due to bone conduction of your voice to your ears.
>
> Enjoy!
>
> 73,
>
> Lyle KK7P
>
>> Newby KX3 question: how accurate a representation of voice and transmission characteristics does the Voice Monitor provide on SSB (with accurate headphones, not the KX3 speaker)? Is it approximate, or actual?
>
> ______________________________________________________________
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>
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David Ahrendts   [hidden email]  




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