Re: LineOut on transmit

[Dick Williams-2]

Jack,

Good question,  that has never crossed my mind;  but now that you mentioned
it, I notice the same thing.  In my case, it is when on RTTY.  For RTTY I am
using the US Interface Navigator and have both the main and sub line outs
connected to it.  Am using MMTTY and have two programs installed (different
directories so I can open both at the same time).  One is for the main
receiver and for transmitting (left ch), and the other is for the sub
receiver (right ch).

I notice than when I transmit (as you observed), the K3 is sending audio out
the line out on the sub side. And even if the sub receiver is turned off.
Thus I "see" what I am transmitting on both MTTY displays.

Dick  K8ZTT

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of k1vt
Sent: Wednesday, March 09, 2011 9:50 AM
To: [hidden email]
Subject: [Elecraft] LineOut on transmit

I am enjoying my new K3/P3 that I received a little over a week ago.
Although most of my questions have been answered by the manual or by
experimentation, I have several unanswered questions at this time relating
to LineOut:  

1) Is it normal to have audio coming out of LineOut while transmitting?  I
observe this on both SSB and CW.

2) While receiving, audio from LinOut is from the left channel only, as
expected.  However, while transmitting equal audio (my TX audio, either SSB
or CW) comes out of both channels.  Is this normal?

Thanks.

Jack K1VT

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[Richard Ferch]

What you are seeing is the monitor output, which is mono (both
channels). To turn it off so that you do not see your transmitted signal
in both displays, adjust the MON control to zero. Using MMTTY, you will
still see transmitted signals in the left channel display, but these are
generated in the software, not in the radio (MMTTY uses the left channel
to transmit).

73,
Rich VE3KI

K8ZTT wrote:

> Jack,
>
> Good question,  that has never crossed my mind;  but now that you mentioned
> it, I notice the same thing.  In my case, it is when on RTTY.  For RTTY I am
> using the US Interface Navigator and have both the main and sub line outs
> connected to it.  Am using MMTTY and have two programs installed (different
> directories so I can open both at the same time).  One is for the main
> receiver and for transmitting (left ch), and the other is for the sub
> receiver (right ch).
>
> I notice than when I transmit (as you observed), the K3 is sending audio out
> the line out on the sub side. And even if the sub receiver is turned off.
> Thus I "see" what I am transmitting on both MTTY displays.
>
> Dick  K8ZTT
>
> -----Original Message-----
> From: [hidden email]
> [mailto:[hidden email]] On Behalf Of k1vt
> Sent: Wednesday, March 09, 2011 9:50 AM
> To: [hidden email]
> Subject: [Elecraft] LineOut on transmit
>
> I am enjoying my new K3/P3 that I received a little over a week ago.
> Although most of my questions have been answered by the manual or by
> experimentation, I have several unanswered questions at this time relating
> to LineOut:
>
> 1) Is it normal to have audio coming out of LineOut while transmitting?  I
> observe this on both SSB and CW.
>
> 2) While receiving, audio from LinOut is from the left channel only, as
> expected.  However, while transmitting equal audio (my TX audio, either SSB
> or CW) comes out of both channels.  Is this normal?
>
> Thanks.
>
> Jack K1VT

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