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[KX3] USB sound card functionality in the future?

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Dave Hartzell

[KX3] USB sound card functionality in the future?

I'm not sure what the upgrade and refresh cycle is for the KX3, but I'm
wondering if there will ever be KIO3-like capability added to the KX3 (or
KX2).

Mainly so the radio shows up as a sound card over the USB...

Dave
ad0qe
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Don Wilhelm

Re: [KX3] USB sound card functionality in the future?

Dave,

I seriously doubt it. If you look inside the KX3 or the KX2, there is
not much space.
Secondly, the way the KX3, PX3 and KXPA100 'string together" for the
RS-232 (ACC1) connections, both the PX3 and KXPA100 would have to change
to support USB and audio. So I don't think that is going to happen.

Elecraft does not have a schedule of "upgrades and refresh" for any of
their products. That only happens on an as needed basis, or as
engineering resources for that kind of effort become available.

Don't forget that the KIO3B addition for the K3 was possible only as a
'sideline' during the development of the K3S.

73,
Don W3FPR

On 12/30/2016 3:54 PM, Dave Hartzell wrote:

> I'm not sure what the upgrade and refresh cycle is for the KX3, but I'm
> wondering if there will ever be KIO3-like capability added to the KX3 (or
> KX2).
>
> Mainly so the radio shows up as a sound card over the USB...
>
> Dave
> ad0qe
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
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>

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Dave Hartzell

Re: [KX3] USB sound card functionality in the future?

Interesting... Not knowing much about the architecture, isn't most of the
hardware already on board to send samples out the USB?

Looking at the KX3 block diagram [1], I'm curious why you couldn't move
digital I/Q samples from the DSP to the PIC, then in/out to the USB port.

While I'm sure the existing I/Q port would work for me, its always nice to
be lazy and use one cable. :)

1. http://www.elecraft.com/manual/KX3%20Manual%20Block%20Diagram.pdf

On Fri, Dec 30, 2016 at 2:15 PM, Don Wilhelm <[hidden email]> wrote:

> Dave,
>
> I seriously doubt it. If you look inside the KX3 or the KX2, there is not
> much space.
> Secondly, the way the KX3, PX3 and KXPA100 'string together" for the
> RS-232 (ACC1) connections, both the PX3 and KXPA100 would have to change to
> support USB and audio. So I don't think that is going to happen.
>
> Elecraft does not have a schedule of "upgrades and refresh" for any of
> their products. That only happens on an as needed basis, or as engineering
> resources for that kind of effort become available.
>
> Don't forget that the KIO3B addition for the K3 was possible only as a
> 'sideline' during the development of the K3S.
>
> 73,
> Don W3FPR
>
>
> On 12/30/2016 3:54 PM, Dave Hartzell wrote:
>
>> I'm not sure what the upgrade and refresh cycle is for the KX3, but I'm
>> wondering if there will ever be KIO3-like capability added to the KX3 (or
>> KX2).
>>
>> Mainly so the radio shows up as a sound card over the USB...
>>
>> Dave
>> ad0qe
>> ______________________________________________________________
>> 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
>> Message delivered to [hidden email]
>>
>>

Don Wilhelm

Re: [KX3] USB sound card functionality in the future?

Dave,

First of all, the audio for digital operations needs to come from the
phones and mic lines. The RX I/Q is taken off before any DSP Processing
so the bandwidth is not restricted by the filtering done in the KX3. In
other words, the RX I/Q is not simply audio - it may be at baseband, but
it is not the audio output of the KX3 - the post filtering audio and the
pre-filtering baseband signals come from two different points in the
receive chain and would have to be switched depending on whether you
wanted a panadapter application or a digital mode application.

73,
Don W3FPR

On 12/30/2016 5:03 PM, Dave Hartzell wrote:
> Interesting... Not knowing much about the architecture, isn't most of the
> hardware already on board to send samples out the USB?
>
> Looking at the KX3 block diagram [1], I'm curious why you couldn't move
> digital I/Q samples from the DSP to the PIC, then in/out to the USB port.
>
> While I'm sure the existing I/Q port would work for me, its always nice to
> be lazy and use one cable. :)
>
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Dave Hartzell

Re: [KX3] USB sound card functionality in the future?

Thanks Don. Maybe someday it will be supported on the KX3-S (or whatever
the follow-on will be called).

On Fri, Dec 30, 2016 at 3:21 PM, Don Wilhelm <[hidden email]> wrote:

> Dave,
>
> First of all, the audio for digital operations needs to come from the
> phones and mic lines. The RX I/Q is taken off before any DSP Processing so
> the bandwidth is not restricted by the filtering done in the KX3. In other
> words, the RX I/Q is not simply audio - it may be at baseband, but it is
> not the audio output of the KX3 - the post filtering audio and the
> pre-filtering baseband signals come from two different points in the
> receive chain and would have to be switched depending on whether you wanted
> a panadapter application or a digital mode application.
>
> 73,
> Don W3FPR
>
>
>
>
> On 12/30/2016 5:03 PM, Dave Hartzell wrote:
>
>> Interesting... Not knowing much about the architecture, isn't most of the
>> hardware already on board to send samples out the USB?
>>
>> Looking at the KX3 block diagram [1], I'm curious why you couldn't move
>> digital I/Q samples from the DSP to the PIC, then in/out to the USB port.
>>
>> While I'm sure the existing I/Q port would work for me, its always nice to
>> be lazy and use one cable. :)
>>
>>

Don Wilhelm

Re: [KX3] USB sound card functionality in the future?

Dave,

Whatever it is, there will be no hyphens in the designation. Elecraft
does not use hyphens in its product names (other than the N-Gen and
2T-Gen mini-modules).

73,
Don W3FPR

On 12/30/2016 5:25 PM, Dave Hartzell wrote:
> Thanks Don. Maybe someday it will be supported on the KX3-S (or
> whatever the follow-on will be called).
>
>
>

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Nr4c

Re: [KX3] USB sound card functionality in the future?

In reply to this post by Dave Hartzell

Since the radio is not really that modular I'd not hold my breath. The K3 had several boards that made up the KIO3 module.

Sent from my iPhone
...nr4c. bill

> On Dec 30, 2016, at 3:54 PM, Dave Hartzell <[hidden email]> wrote:
>
> I'm not sure what the upgrade and refresh cycle is for the KX3, but I'm
> wondering if there will ever be KIO3-like capability added to the KX3 (or
> KX2).
>
> Mainly so the radio shows up as a sound card over the USB...
>
> Dave
> ad0qe
> ______________________________________________________________
> 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
> Message delivered to [hidden email]