Lectrosonics DBSM Quick Start Manual page 8

DBSM-A1B1, DBSM/E01-A1B1, DBSMD-A1B1, DBSMD/E01-A1B1
Menu Screen
Details
Top Menu
From the Default screen, press-
ing MENU/SEL will access the Top
Menu. The Top Menu allows the user
to access the various sub-menus to
control the unit.
TopMenu TopMenu
Input TCode
Xmit IR&Key
Compat Setup
From the TopMenu, use the
arrow buttons to highlight INPUT
and press MENU/SEL.
Adjusting the Input Gain
The two bicolor Modulation LEDs
on the control panel provide a visual
indication of the audio signal level
entering the transmitter. The LEDs
will glow either red or green to indi-
cate modulation levels as shown in
the table on page 8.
Signal Level
Less than -20 dB
-20 dB to -10 dB
-10 dB to +0 dB
+0 dB to +10 dB
Greater than +10 dB
NOTE: Full modulation
is achieved at 0 dB,
when the "-20" LED first
turns red. The limiter can
cleanly handle peaks
up to 30 dB above this
point.
8
and
-20 LED -10 LED
Off Off
Green Off
Green Green
Red Green
Red Red
It is best to go through the following
procedure with the transmitter in the
standby mode so that no audio will
enter the sound system or recorder
during adjustment.
1) With fresh batteries in the
transmitter, power the unit on
in the standby mode (see pre-
vious section Turning Power
ON and OFF).
2) Navigate to the Gain setup
screen.
Gain
25
-40 -20 0
3) Prepare the signal source. Po-
sition a microphone the way it
will be used in actual opera-
tion and have the user speak
or sing at the loudest level
that will occur during use,
or set the output level of the
instrument or audio device to
the maximum level that will be
used.
4) Use the
to adjust the gain until the –10
dB glows green and the –20
dB LED starts to flicker red
during the loudest peaks in
the audio.
5) Once the audio gain has been
set, the signal can be sent
through the sound system
for overall level adjustments,
monitor settings, etc.
6) If the audio output level of the
receiver is too high or low,
use only the controls on the
receiver to make adjustments.
Always leave the transmitter
gain adjustment set accord-
ing to these instructions, and
do not change it to adjust
the audio output level of the
receiver.
LECTROSONICS, INC.
and arrow buttons