CHANNEL B (Next)
11 -
Multi-turn cermet potentiometer for the delay calibration during the transition of B channel to A
channel, after detection of signal absence on the B channel. Variable from 0 to 8 seconds. The
time increases clockwise.
Note: this regulation must be rather short time in order to avoid a too long blank at the end of
the message on the B channel, but not so long in order to avoid inopportune rising up of channel
A (during the short audiomodulation blank on the channelB).
This multi-turn potentiometer
11
is only active in auto or auto + manual mode.
12-
Multi-turn cermet potentiometer for the modulation detection threshold calibration of channel
B. Variable from -6 dBu to -40 dBu. The sensitivity (gain of detection level ) increases clockwise.
This calibration must be done after the input sensitivity
7
and
8
.
Note: it must be rather sensitive in order to detect the low levels of the modulation, but not so
much to avoid triggering on the hissnoises or on the line interferences .This calibration is rather
crucial and particularly interesting on a connection with bad S/N ratio.
This multi-turn potentiometer
12
is only active in auto or auto + manual mode.
13-
Warning light indicating that B channel is open (audio proceeding).
14-
Channel A cue switch for bargraph
17
and
18
, the monitoring headphones
19
, and the
unbalanced output for the premonitoring and the calibration ( operational, with the channel A
open or not ).
15-
Channel B cue switch for bargraph
17
and
18
the monitoring headphones
19
, and the
unbalanced output for the premonitoring and the calibration (operational, with the channel B
open or not).
Note: when both switches
14
and
15
are released, the output modulation can be displayed
on bargraph.
16-
Bargraph mode selection:
Release for RMS reading
Press for PEAK reading
17-
Left channel Bargraph
Dix points:-12dB ; -9dB ; -6dB ; -3dB ; 0dB ; +3dB ; +6dB ; +9dB ; +12dB ; +15dB
18-
Right channel Bargraph
Dix points:-12dB ; -9dB ; -6dB ; -3dB ; 0dB ; +3dB ; +6dB ; +9dB ; +12dB ; +15dB
19-
Stereo Headphones socket for monitoring (25 to 600 ohms). Same signal as displayed on bargraph
Note: Displayed levels are relative levels.The 0 dB reference level can be set by
internal switch at 0 dBu or +6dBu, which is the most frequently used level in
professional audio equipment. Input or output levels are considered as +6 dBu.
(Contact us for +4 dBu and +12 dBu levels).
Next
FRONT PANEL
A
B
CHANNEL
+
+
SENS
VCA
ON
+
+
+
+
+
L
ATTENUA
TION
R
TIME CTRL
B
A
THRESHOLD
+
+
+
+
R
L
PHONES
2 Channel Audio Fader
R
L
RMS
PPM
MODE VU
ON
SENS
VCA
OUTPUT: ALL RELEASE
CUE INPUTS
/
OUTPUT
CHANNEL A
CHANNEL B
IN / OUT CONTROL
+dB
-dB
+9
+12 +15
+3
+6
-3
-6
-12
-9
O
1 2
14 15
18
16
17
19
7 8
6
5
11 12 13
10
9
4
3
RAMI
AUF200S
17
Summary of Contents for AUF200
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