[Elecraft] No USB audio output from K3/0 Mini

[iain macdonnell - N6ML]

On Thu, May 11, 2017 at 5:20 PM, Palle Preben-Hansen, OZ1RH
<palle at oz1rh.com> wrote:
> If TX and RX audio are reversed on the Mini's USB port the simple solution
> seems to reverse TX and RX audio once more by software, either by selecting
> the Input as USB speakers and Output as USB microphone in WSJT or wherever
> software is used or if that is not possible then to use two virtual audio
> cables and cross them.
>
> Any reason that two virtual audio cables in the pc at the control site
> can't reverse Input and Output of the USB audio devices of the K3/0-Mini?

I don't think that's what Olli meant by "reversed". I think he means
that audio received from the K3/0-Mini via the USB "codec" would be
audio that was intended to be conveyed (by the PC) to a remote peer
for transmission (e.g. from a mic connected to the K3/0-Mini), and
audio sent to the K3/0-Mini via USB "codec" would be output through
its speaker or headphones, as if it had been received from a remote
peer.... so you can't send audio to the K3/0-Mini through the USB
"codec" and expect it to get passed along via the RemoteRig on the
other side, no matter what fancy virtual plumbing you do in software.

I don't have a K3/0-Mini or RemoteRig setup, but that's the only
interpretation that makes sense to me.


> The best solution would be if the K3/0-Mini's USB port Input and Output
> audio could be configured (=reversed) by the Config menu of the K3/0-Mini.
> In that case the K3/0-Mini's USB port could be configured by the user for
> either Remoterig hardware or software RemoteHams.com and it would be easy
> to switch.

But it'd have to be electrically switched inside, and I suspect that
such switching is not implemented (in hardware).

Just "guessing" ;)

73,

    ~iain / N6ML



> On Thu, May 11, 2017 at 9:02 PM, Oliver Dröse <droese at necg.de> wrote:
>
>> Hi Palle,
>>
>> this won't work. TX and RX audio are reversed on the mini's USB port as
>> it's intend is to interface to the PC and use that as a relay to the remote
>> (as an alternative to the RRC boxes). It's a real pity it is not jumper
>> configurable inside as this renders the USB port useless for digital remote
>> ops.
>>
>> 73, Olli - DH8BQA
>>
>>
>>
>> > Am 10.05.2017 um 14:44 schrieb Palle Preben-Hansen, OZ1RH <
>> palle at oz1rh.com>:
>> >
>> > I have a running K3-Remote setup with Remoterig boxes, K3/0 Mini
>> > and RRMINICBL & RRMTCBL cable sets. Everything but the USB audio to/from
>> > the K3/0 Mini works. I have a USB cable from the K3/0 Mini to my pc at
>> the
>> > control site. A USB audio device is created on my Win 10 pc, but using
>> > this USB audio device from WSJT-X version 1.7.0 the program gets no
>> > audio. The K3 and K3/0 Mini has firmware 5.57.
>> >
>> > According to www.elecraft.com/K3-Remote/k3_remote.htm this should work:
>> *The
>> > K3/0-Mini comes with built-in USB support using the USB audio CODEC &
>> FTDI
>> > technology.*
>> >
>> > On the Remoterig Forum at www.remoterig.com/forum/index.php there are
>> some
>> > posts on this problem, but no solution. I have also in vain searched
>> > www.mail-archive.com/elecraft at mailman.qth.net/maillist.html I hope the
>> > Elecraft experts here can help.
>> >
>> > 73, Palle, OZ1RH
>> > www.oz1rh.com
>> >
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