[Elecraft] This mixer may interest some

Mon Feb 24 15:30:00 2003

That is the reason for using a mixer and not a switch. But, I can silence
the audio from all but one audio source (radio, for example) and hear only
that radio. This is done by just turning down the level controls on the
other sources to zero.

I can hear the output of four different radios plus the computer soundcard
plus two microphones plus the output of some audio rack processing gear all
at once in a single speaker system with individual EQ controls on the radio,
rack and mic channels. The volume of each source of sound can be
individually set.

Of course, one would never use such a setup like that but it is very
convenient to (a) monitor receiver A while working radio B; (b) copying
PSK31 on the computer screen from Radio C via the soundcard; and (c)
watching the audio from any or all of these sources on one trace of a
dual-trace scope. The other trace is used to monitor the r-f output
envelope.

Another advantage is being able to adjust the EQ for each channel. If an SSB
station of Radio B is too bassy and lacks highs, just turn down the bass on
the channel and turn up the high end until the signal sounds like you want
it to. This has no effect on any of the other signals, of course.

I have been hamming for nearly 58 years now and I have never before enjoyed
using a room full of equipment as much since getting a mixer to handle all
the audio interconnections, level setting, etc. I can't say enough good
things about this approach or about handling transmit audio input and
receive audio output from the rear panel connector of the radio rather than
using the conventional mic input and speaker output connectors.

73/72, George
Amateur Radio W5YR -  the Yellow Rose of Texas
Fairview, TX 30 mi NE of Dallas in Collin county EM13QE
"In the 57th year and it just keeps getting better!"

-----Original Message-----
From: [email protected]
[mailto:[email protected]]On Behalf Of [email protected]
Sent: Monday, February 24, 2003 2:10 PM
To: [email protected]; [email protected]
Cc: [email protected]; Elecraft Reflector
Subject: Re: RE: [Elecraft] This mixer may interest some

I'd like some clarification. With the 802 mixer and ONE speaker can you,
theoretically, listen to the audio on 4 receivers simultaneously thru one
speaker or "flip a switch" and just hear one rig? This could be immensely
useful. 73/Tim
>
> From: "George, W5YR" <[email protected]>
> Date: 2003/02/24 Mon PM 02:37:22 EST
> To: <[email protected]>
> CC: <[email protected]>,
> 	"Elecraft Reflector" <[email protected]>
> Subject: RE: [Elecraft] This mixer may interest some
>
> Right, John, but (a) it was unavailable locally when I got the 802A and
(b)
> it would not fit where the 802 has to live!   <:}
>
> Actually, I find that I change any settings so seldom that knobs or
sliders
> really wouldn't matter that much. But, the extra channels and busses would
> be nice to have. As it is, the 802 is able to handle four transceivers'
> receive audio, two mics, one side channel to the soundcard and another to
> some audio rack equipment and its return, plus provide a monitor signal
for
> one scope channel and drive the power amp to the speaker cabinets. And I
> still have one open channel available!  Plus an open stereo input for the
> minidisc recorder I hope to get some day.
>
> Bob Heil once remarked that I was the first person he had ever seen use
> every available connector on a 602A!
>
> And, right on, Behringer produces audio equipment that is near top-line
> pro-audio in quality at affordable prices. The little 602A for example
will
> serve as an excellent interface between the computer and your rig for
around
> half the cost of the deluxe dedicated digital-mode interfaces.
>
> 73/72, George
> Amateur Radio W5YR -  the Yellow Rose of Texas
> Fairview, TX 30 mi NE of Dallas in Collin county EM13QE
> "In the 57th year and it just keeps getting better!"
>
>
>
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On Behalf Of [email protected]
> Sent: Sunday, February 23, 2003 5:15 PM
> To: George, W5YR
> Cc: [email protected]; Elecraft Reflector
> Subject: RE: [Elecraft] This mixer may interest some
>
>
>
> On Sun, 23 Feb 2003, George, W5YR wrote:
>
> > Just a reminder that the MX602A cannot by itself drive a speaker - it
> > produces line-level outputs only. An external power amp  is required to
> > handle the speaker.
> >
> > But, the mixer *will* drive headphones directly, which is what most
folks
> > prefer for CW.
> >
> > The 602A is adequate for the typical station, but for handling several
> > radios, computer soundcard, etc. the 802A is a much better buy for only
> $20
> > more. Specs for both can be downloaded from the Behringer website.
> >
> > 73/72, George
> > Amateur Radio W5YR -  the Yellow Rose of Texas
> > Fairview, TX 30 mi NE of Dallas in Collin county EM13QE
> > "In the 57th year and it just keeps getting better!"
> >
>
> Or, if you want *REAL* faders for the channels and not just knobs, you may
> want to consider the MX1604A.  It was only slightly more expensive than
> the 802A when I got it.  It has 4 busses and 16 channels.  Very nice
> unit.  It is what I use in my shack and can be seen in action at:
>
> http://www.k4wtf.com/
>
> Oh, one more comment: You can't go wrong with Behringer.  I also have one
> of their large 24 channel boards.
>
> 73 de John - K4WTF
>
>
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