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K3 sound recording

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ve3gfn

K3 sound recording

I've been asked to do a workshop on contesting techniques next
autumn, so I'm working on an audio/visual presentation.

Here's the question: For my K3, if I connect a line between the K3
LINE OUT and the PC's LINE IN, will I be able to record
(using software such as Audacity) all audio present in my K3 speaker
or headphones? I want to record CW and
SSB contest QSOs, to illustrate my contesting techniques.

Thanks, Mike Goldstein VE3GFN
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Kevin Stover

Re: K3 sound recording

Don't see why not.

On 4/14/2016 9:11 PM, Mike Goldstein wrote:

> I've been asked to do a workshop on contesting techniques next autumn,
> so I'm working on an audio/visual presentation.
>
> Here's the question: For my K3, if I connect a line between the K3
> LINE OUT and the PC's LINE IN, will I be able to record (using
> software such as Audacity) all audio present in my K3 speaker or
> headphones? I want to record CW and
> SSB contest QSOs, to illustrate my contesting techniques.
>
> Thanks, Mike Goldstein VE3GFN
> ______________________________________________________________
> 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]
>

--
R. Kevin Stover
AC0H
ARRL
FISTS #11993
SKCC #215
NAQCC #3441

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NK7Z

Re: K3 sound recording

In reply to this post by ve3gfn

I routinely do this... Works great for me... I use a different
program called i-sound. It has a small footprint and works well...
--
73's, and thanks,
Dave (NK7Z)

For software/hardware reviews see:
http://www.nk7z.net

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On Thu, 2016-04-14 at 22:11 -0400, Mike Goldstein wrote:

> I've been asked to do a workshop on contesting techniques next
> autumn, so I'm working on an audio/visual presentation.
>
> Here's the question: For my K3, if I connect a line between the K3
> LINE OUT and the PC's LINE IN, will I be able to record
> (using software such as Audacity) all audio present in my K3
> speaker
> or headphones? I want to record CW and
> SSB contest QSOs, to illustrate my contesting techniques.
>
> Thanks, Mike Goldstein VE3GFN
> ______________________________________________________________
> 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]

Re: K3 sound recording

I do this too - BUT have not figured a way to record the SUB rx output at same time unless I made some sort of external circuit xfmr or resistors to feed LINE OUT tip and ring to a single input Maybe there is something I am missing ? This would also allow decoding RTTY from either MAIN or SUB rx . ??? Hank K7HP ----- Original Message -----

> I routinely do this... Works great for me... I use a different
> program called i-sound. It has a small footprint and works well...
> --
> 73's, and thanks,
> Dave (NK7Z)
> > Here's the question: For my K3, if I connect a line between the K3
> > LINE OUT and the PC's LINE IN, will I be able to record
> > (using software such as Audacity) all audio present in my K3
> > speaker > or headphones? I want to record CW and
> > SSB contest QSOs, to illustrate my contesting techniques.
> >
> > Thanks, Mike Goldstein VE3GFN
> > ______________________________________________________________

Cady, Fred-2

Re: K3 sound recording

Have a look at the sound card's Microphone properties and then click Advanced. You will probably be able to select a two channel input if a one channel input is currently selected.
Cheers,
Fred KE7X

For all KE7X Elecraft books, see www.ke7x.com

________________________________________
From: Elecraft <[hidden email]> on behalf of HankP <[hidden email]>
Sent: Friday, April 15, 2016 11:26 AM
To: [hidden email]
Cc: [hidden email]
Subject: Re: [Elecraft] K3 sound recording

I do this too - BUT have not figured a way to record the SUB rx output at same time unless I made some sort of external circuit xfmr or resistors to feed LINE OUT tip and ring to a single input Maybe there is something I am missing ? This would also allow decoding RTTY from either MAIN or SUB rx . ??? Hank K7HP ----- Original Message -----

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Richard Ferch-2

Re: K3 sound recording

In reply to this post by ve3gfn

Unless I am missing something in your description, the only hardware you
need is a single stereo patch cable (one with 3.5 mm stereo plugs on both
ends) from the stereo Line Out jack on the K3 to the stereo Line In jack on
a standard 2-channel sound card. If your sound card has only a mono input,
use a different sound card (one with stereo inputs). In the Windows setup
for the sound card, make sure it is configured for two channels.

The main RX audio will be recorded in the left channel and the subRX audio
will be recorded in the right channel of the stereo recording.
Transmit monitor audio will appear in both channels. On playback through
headphones, you will hear the main RX in your left ear and the subRX in
your right ear.

For dual-RX RTTY with the identical hardware, run two separate copies of
your RTTY program(s), one copy configured to use the left channel of the
sound card (for the main RX) and the other copy configured to use the right
channel of the same sound card (for the subRX).

73,
Rich VE3KI

K7HP wrote:

I [...] have not figured a way to record the SUB rx output at same time
unless I made some sort of external circuit xfmr or resistors to feed LINE
OUT tip and ring to a single input Maybe there is something I am missing ?
This would also allow decoding RTTY from either MAIN or SUB rx . ???
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Nr4c

Re: K3 sound recording

In reply to this post by HP

How about a "Splitter" used backwards?

Sent from my iPhone
...nr4c. bill

> On Apr 15, 2016, at 1:26 PM, HankP <[hidden email]> wrote:
>
> I do this too - BUT have not figured a way to record the SUB rx output at same time unless I made some sort of external circuit xfmr or resistors to feed LINE OUT tip and ring to a single input Maybe there is something I am missing ? This would also allow decoding RTTY from either MAIN or SUB rx . ??? Hank K7HP ----- Original Message -----
>> I routinely do this... Works great for me... I use a different
>> program called i-sound. It has a small footprint and works well...
>> --
>> 73's, and thanks,
>> Dave (NK7Z)
>>> Here's the question: For my K3, if I connect a line between the K3
>>> LINE OUT and the PC's LINE IN, will I be able to record
>>> (using software such as Audacity) all audio present in my K3
>>> speaker > or headphones? I want to record CW and
>>> SSB contest QSOs, to illustrate my contesting techniques.
>>>
>>> Thanks, Mike Goldstein VE3GFN
>>> ______________________________________________________________
> ______________________________________________________________
> 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]

ab2tc

Re: K3 sound recording

Hi,

An audio splitters is just a plain T junction and can not be used in reverse. That will probably just produce lots of distortion as the the low impedance audio sources are fighting each other. What K7HP is suggesting, however, using a pair of resistors to form a summing junction from the two outputs should work but will of course involve a little bit of home brewing.

AB2TC - Knut

Nr4c wrote

How about a "Splitter" used backwards?

Sent from my iPhone
...nr4c. bill

> On Apr 15, 2016, at 1:26 PM, HankP <[hidden email]> wrote:
>
> I do this too - BUT have not figured a way to record the SUB rx output at same time unless I made some sort of external circuit xfmr or resistors to feed LINE OUT tip and ring to a single input Maybe there is something I am missing ? This would also allow decoding RTTY from either MAIN or SUB rx . ??? Hank K7HP ----- Original Message -----
<snip>