Elecraft

[K3] Tascam US-322 to K3

Classic

List

Threaded

7 messages Options

KK5IB

[K3] Tascam US-322 to K3

I have a Tascam US-322 USB Audio Interface to connect to my K3 for digital use. I picked it because it has support for Windows 7/8 and 24 bit/96 KHz resolution. It has standard L/R in and out connections plus controls. To connect it to the K3, is it as simple as K3 Stereo line out to the 322 stereo line in, and K3 Stereo line in to 322 line out, with USB cable to computer? I suppose it's best or correct to maintain the L/R stereo separation in the cables, that is using both channels. Any help or instructions would be appreciated.
Darryl, KK5IB

Don Wilhelm-4

Re: [K3] Tascam US-322 to K3

Darryl,

Digital modes normally use only the left channel, although there are
some applications that allow you to switch it to the right.
The K3 Line In and Line Out jacks are stereo type, but there is no
connection to the ring contact, and the audio will only appear on the
normal left channel.
So for the purpose of data modes on the K3, there is no need to be
concerned about channel separation.

73,
Don W3FPR

On 1/6/2015 1:25 PM, KK5IB wrote:

> I have a Tascam US-322 USB Audio Interface to connect to my K3 for digital
> use. I picked it because it has support for Windows 7/8 and 24 bit/96 KHz
> resolution. It has standard L/R in and out connections plus controls. To
> connect it to the K3, is it as simple as K3 Stereo line out to the 322
> stereo line in, and K3 Stereo line in to 322 line out, with USB cable to
> computer? I suppose it's best or correct to maintain the L/R stereo
> separation in the cables, that is using both channels. Any help or
> instructions would be appreciated.
> Darryl, KK5IB
>

______________________________________________________________
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]

Jim Brown-10

Re: [K3] Tascam US-322 to K3

In reply to this post by KK5IB

On Tue,1/6/2015 10:25 AM, KK5IB wrote:
> To
> connect it to the K3, is it as simple as K3 Stereo line out to the 322
> stereo line in, and K3 Stereo line in to 322 line out, with USB cable to
> computer? I suppose it's best or correct to maintain the L/R stereo
> separation in the cables, that is using both channels.

Yes, it is that simple. Also, RTFM for the Tascam unit so that it's set
to do what you need, and for the K3 to make sure you're connecting to
the right connector pins. Most of these units have a pot that "pans" the
Output from the Input (max CCW) to the Computer (max CW). For simple USB
I/O for ham radio, we want max CW.

73, Jim K9YC

______________________________________________________________
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]

Bill Frantz

Re: [K3] Tascam US-322 to K3

In reply to this post by Don Wilhelm-4

On 1/6/15 at 11:10 AM, [hidden email] (Don Wilhelm) wrote:

>Digital modes normally use only the left channel, although
>there are some applications that allow you to switch it to the right.
>The K3 Line In and Line Out jacks are stereo type, but there is
>no connection to the ring contact, and the audio will only
>appear on the normal left channel.
>So for the purpose of data modes on the K3, there is no need to
>be concerned about channel separation.

Reading the cocoaModem documentation, it looks like the DualRTTY
mode will decode from both the right and left channels of the
input. Since I don't have a sub-receiver in my K3, I can't test
that it actually works, but being able to decode the pileup
while monitoring the DX should be as nice in RTTY as it is in CW
and SSB. (Yes, I really appreciate the dual watch feature of the KX3.)

I don't know if there are any programs for Linux or Windows that
will do dual decode.

73 Bill AE6JV

---------------------------------------------------------------------------
Bill Frantz |"After all, if the conventional wisdom was
working, the
408-356-8506 | rate of systems being compromised would be
going down,
www.pwpconsult.com | wouldn't it?" -- Marcus Ranum

______________________________________________________________
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]

Joel Black-2

Re: [K3] Tascam US-322 to K3

The dual decode works fine in cocoaModem. I used it quite a bit this past year with the W1AW/x stations working RTTY split. I have the second receiver and use my K3 with a CreativeLabs E-MU 0204.

73,
Joel - W4JBB

> On Jan 6, 2015, at 8:10 PM, Bill Frantz <[hidden email]> wrote:
>
> On 1/6/15 at 11:10 AM, [hidden email] (Don Wilhelm) wrote:
>
>> Digital modes normally use only the left channel, although there are some applications that allow you to switch it to the right.
>> The K3 Line In and Line Out jacks are stereo type, but there is no connection to the ring contact, and the audio will only appear on the normal left channel.
>> So for the purpose of data modes on the K3, there is no need to be concerned about channel separation.
>
> Reading the cocoaModem documentation, it looks like the DualRTTY mode will decode from both the right and left channels of the input. Since I don't have a sub-receiver in my K3, I can't test that it actually works, but being able to decode the pileup while monitoring the DX should be as nice in RTTY as it is in CW and SSB. (Yes, I really appreciate the dual watch feature of the KX3.)
>
> I don't know if there are any programs for Linux or Windows that will do dual decode.
>
> 73 Bill AE6JV

Jim Brown-10

Re: [K3] Tascam US-322 to K3

In reply to this post by Don Wilhelm-4

On Tue,1/6/2015 11:10 AM, Don Wilhelm wrote:
> Digital modes normally use only the left channel, although there are
> some applications that allow you to switch it to the right.

WSJT-X, MMTTY, and 2-Tone all can be set to decode either channel.
WSJT10 only connect to the left channel. I've been lobbying with them to
add channel switching.

> The K3 Line In and Line Out jacks are stereo type, but there is no
> connection to the ring contact

That's true only for a single-RX K3.

> , and the audio will only appear on the normal left channel.

If you have the Sub-RX installed, it's audio will appear between ring
and shell.

If you run MMTTY with WinWarbler, you can open a second 2Tone decode
window. It can look at the same signal or the other RX.

73, Jim K9YC

______________________________________________________________
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]

Iain MacDonnell - N6ML-2

Re: [K3] Tascam US-322 to K3

On Tue, Jan 6, 2015 at 6:47 PM, Jim Brown <[hidden email]> wrote:
> On Tue,1/6/2015 11:10 AM, Don Wilhelm wrote:
>> The K3 Line In and Line Out jacks are stereo type, but there is no
>> connection to the ring contact
>
> That's true only for a single-RX K3.

There certainly is a connection to the ring of the line out jack -
even without the sub RX, it will become active if "CONFIG:LIN
OUT=PHOnES"... or at least it gets the main RX audio when the sub is
inactive in that case.

73,

~iain / N6ML
______________________________________________________________
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]