DPR-A, DPR-A/E01, DPR-A/E01-B1C1
LECTROSONICS, INC.
12
Setup Screen Details
Main Window Indicators
The Main Window displays the operating frequency,
Standby or Operating mode, battery status, if an SDHC
card is presnt/recording, and audio level.
DPr
00 : 02 : 37
-20
+0
470.100
-40
Frequency (MHz)
Operating mode
Battery status
Audio level
Indicates micro
SDHC card
present and
recording status
Turning Control Panel LEDs ON/OFF
From the main menu screen, a quick press of the
UP
arrow button turns the control panel LEDs on. A quick
press of the
DOWN
arrow button turns them off. The
buttons will be disabled if the
LOCKED
option is se-
lected in the Setup menu.
The control panel LEDs can also be turned on and off
with the
LED Off
option in the Setup menu.
Helpful Features on Receivers
To aid in finding clear frequencies, several Lectrosonics
receivers offer a
SmartTune
feature that scans the tun-
ing range of the receiver and displays a graphical report
that shows where RF signals are present at different
levels, and areas where there is little or no RF energy
present. The software then automatically selects the
best channel for operation.
Lectrosonics receivers equipped with an
IR Sync
func-
tion allow the receiver to set frequency on the transmit-
ter via an infrared link between the two units.
Input Menu
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 indicate modulation levels as shown in the
following table.
Signal Level
-20 LED
-10 LED
Less than -20 dB
Off
Off
-20 dB to -10 dB
Green
Off
-10 dB to +0 dB
Green
Green
+0 dB to +10 dB
Red
Green
Greater than +10 dB
Red
Red
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.
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 previous section
Turning Power ON and OFF
).
2)
Navigate to the Gain setup screen.
Input...
Gain
Rolloff
Polarity
-40
-20
+0
Gain
22
3)
Prepare the signal source. Position a microphone
the way it will be used in actual operation 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 and arrow buttons 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 according to these instruc-
tions, and do not change it to adjust the audio
output level of the receiver.
NOTE: Input Gain may also be accessed by
holding down
MENU/SEL
from the home/main
screen.
