Controls And Functions; Modulation Leds; Oled Screen; Batt Led - Lectrosonics DSSM-A1B1 Instruction Manual

DSSM-A1B1, DSSM-B1C1, DSSM/E01-A1B1, DSSM/E01-B1C1, DSSM/E07-941

Controls and Functions

Operating
Modulation Mode
LEDs
Indicator
Battery
Indicator
Audio Input Meter

Modulation LEDs

Proper input gain adjustment is critical to ensure the best
audio quality. Two bicolor LEDs will glow either red or
green to accurately indicate modulation levels. The input
circuitry includes a wide range DSP controlled limiter to
prevent distortion at high input levels.
It is important to set the gain (audio level) high enough
to achieve full modulation during louder peaks in the
audio. The limiter can handle over 30 dB of level above
full modulation, so with an optimum setting, the LEDs
will flash red during use. If the LEDs never flash red, the
gain is too low. In the table below, +0 dB indicates full
modulation. See the Adjusting Input Gain section for
additional information.
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

OLED Screen

The display is a matrix OLED with screens for adjusting
various modes and options. The transmitter can be pow-
ered up with or without the RF output turned on. A brief
press on the power button turns the unit on in a Standby
Mode with the output turned off to allow adjustments to
be made without interfering with other wireless systems
in the vicinity.
BATT LED and Battery Indicator
The battery LED glows green when the battery is good,
and the battery icon is solid and steady. The LED color
changes to red when there is limited operating time
remaining. When the battery is extremely low and the
unit is about to turn off, the LED will blink, a few minutes
before the unit powers itself down.
6

BATT LED

Encryption
Status
LED

Power Button

-20 LED -10 LED
Off Off
Green Off
Green Green
Red Green
Red Red
The exact point at which the LED turns red will vary with
temperature and current drain. The LED is intended to
simply catch your attention, not to be an exact indicator
of remaining time.
The LED next to the BATT LED (Encryption Status) will
glow blue if the unit is transmitting and has a valid en-
cryption key.

MENU/SEL Button

The MENU/SEL button is used to access the MENU tree.
The and arrows allow you to scroll through the list.
Pressing MENU/SEL again allows you to access that
selection's submenu. Pressing the BACK button returns
you to the previous screen.
Power Button
Turns the unit on and off. A brief press turns power on
in a Standby Mode to make settings without interfering
with other wireless systems in the vicinity. Pressing and
holding the button until a bar on the display completes a
sequence turns the power on with the RF output turned
on. Pressing and holding for the duration of a bar se-
quence turns the unit off.
Audio Input Meter
This shows the dB signal level, against a scale of -40 to
+0. A small box with the letter "L" will appear at the far
right when the audio signal goes into limiting.

UP and DOWN Arrow Buttons

The and arrow buttons are used to select the values
on the various setup screens and to lock out the control
panel.
Encryption Status LCD/LED Indicator
Modes
• StandBy: Blue LED is OFF and Operating Mode
Indicator icon has a line through it
• Missing/Wrong Key: LED is FLASHING when unit
is transmitting, along with <-KEY?-> flashing below
the Operating Mode Indicator.
• Transmitting: Blue Light is steadily ON when key
is valid.
564.800
u
)
)
<-KEY?->
LECTROSONICS, INC.