Hmmm....I just went back and checked what Duane reported. Set the Audio Menu
for Left & Right to BOTH, then vary the audio levels of the main and then
the sub rcvr. At first I thought the SubRx had much louder audio for the
same setting, but discovered the BW of the main rx was 500Hz and the BW of
the SubRX was 1000 Hz. If I set both rcvrs to the same BW, then I can find
no interaction at all when using the independant audio controls. I slightly
offset the same CW signal so I could monitor the difference in level of each
rcvr, and they both sound totally independant to my ears.
Again, I'm running v1.369.
As Bill mentioned, the roofing filter issue is something we are looking at
in the beta firmware.
Tom - W4BQF
----- Original Message -----
From: "Mark Erbaugh" <mark@microenh.com>
To: <tentec@contesting.com>
Sent: Friday, July 23, 2004 2:56 PM
Subject: Re: [TenTec] Orion Aux I/O Audio Problem
> Duane,
>
> I have also experienced an unexpected linkage between audio levels when
both
> headphone sides are set to BOTH and when muting one of the receivers.
>
> I suspect that these issues may be related to the way the audio is
generated
> and routed in the Orion. The controls give a simplified appearance, but
> behind the scenes you've got two possible audio sources (main / sub
receiver
> D/A converters), 6 possible audio destinations ( speaker, headphone left,
> headphone right, aux I/O left, aux I/O right and line out ) two AF gain
> controls (which are really just inputs to the processor ) and a menu
system
> for routing it all. There also have to be at least two audio amplifiers
> (left and right headphone).
>
> It might be helpful if someone could describe the details that make all
> these work together. With that explanation, we might be able to explain
some
> of the situations where things don't work as expected.
>
> 73,
> Mark
>
> ----- Original Message -----
> From: "Duane A Calvin" <ac5aa@juno.com>
> To: <tentec@contesting.com>
> Sent: Friday, July 23, 2004 1:19 PM
> Subject: Re: [TenTec] Orion Aux I/O Audio Problem
>
>
> > Mark,
> > There is a similar issue that I've seen. Turn up the volume on
> > the SubRx and watch the Main RX volume output go down! I caught this
> > during the NAQP RTTY as I was trying to check other bands on the SubRX
> > and noticed as soon as I unmuted the SubRX, the output from the Left on
> > the rear panel decreased. Then I discovered it followed the SubRX
> > volume inversely - higher the SubRX, lower the main RX. Strange. I
have
> > not seen exactly what you mention, but will check it this weekend.
> >
> > 73, Duane
> >
> >
> > On Fri, 23 Jul 2004 11:49:43 -0400 "Mark Erbaugh" <mark@microenh.com>
> > writes:
> > > I wonder if other Orion owners have encountered this problem?
> > >
> > > I have my computer soundcard input connected to Pin 4 of the Aux I/O
> > > jack on
> > > the back of the Orion. According to the documentation, this pin is
> > > Left Side
> > > Audio Output. I have Left, Right and Speaker configured to the main
> > > receiver. With stereo headphones plugged in to the front panel
> > > headphone
> > > jack, I hear the audio in both ears as expected and the computer
> > > appears to
> > > be receiving fixed level audio. The audio level does not change as
> > > the main
> > > AF gain control is adjusts.
> > >
> > > Except - if I turn the main AF gain all the way down or mute the
> > > audio by
> > > pushing the AF gain encoder, the audio going to the computer goes
> > > away. If
> > > I unplug the headphones and mute the audio to the speaker, the
> > > computer
> > > still gets audio.
> > >
> > > This is with firmware 1.371.
> > >
> > > 73,
> > > Mark
> > >
> > > _______________________________________________
> > > TenTec mailing list
> > > TenTec@contesting.com
> > > http://lists.contesting.com/mailman/listinfo/tentec
> > >
> > >
> >
> >
> > Duane Calvin, AC5AA
> > Austin, Texas
> > _______________________________________________
> > TenTec mailing list
> > TenTec@contesting.com
> > http://lists.contesting.com/mailman/listinfo/tentec
> >
>
> _______________________________________________
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