Adjusting audio output levels, Selecting audio phase – Lectrosonics Venue (Narrowband) User Manual
Page 16

Venue Narrowband Receiver
Adjusting Audio Output Levels
The audio output levels at the rear panel XLR jacks are
software controlled. (The front panel LEVEL knob af
fects the PHONES output only.)
The optimum output level will provide the highest level
signal possible without overloading the input to external
equipment or driving a subsequent stage in the signal
chain into limiting or compression. Ideally, the gain
needed to drive the rest of the signal chain should be
present at the receiver outputs, with each successive
stage in other equipment set to unity (no gain or loss).
NOTE: In Ratio Diversity and Frequency Diversity
modes, the receiver modules are paired 1-2, 3-4,
5-6. Setting the audio level output on either module
in the pair, sets the audio output to the same level
on both of them.
1. Navigate to the Level setup screen.
2. Select each receiver one at a time with the buttons
under the LCD and rotate the knob to adjust the
output to the desired level.
Selected Receiver
Function
Button
Output Level
Tone On/Off Indicator
(Shown in Off position.)
3. Use the Tone Generator to adjust other equipment
to match the output level from the receiver with full
modulation of the transmitter. Press the Function
Button to start the tone.
The indicator will reverse to a dark background
with light letters when the tone is delivered to the
selected output. Rotate the MENU/SELECT control
to set the desired level.
WARNING: The 1 kHz reference tone is
equivalent to full modulation at the transmitter.
It is LOUD.
The test tone level is always at the 0dB reference level
(full modulation of the wireless system), which is the
level at which the first red “limit” light comes on at the
transmitter.
The highest level that the equipment downstream will
ever see before the receiver clips is 4.5 dB higher than
the test tone. Note that this is
output headroom. Over
the entire 30+ dB range of the limiter in a Lectrosonics
transmitter, the output at the receiver goes up only 4.5
dB or less.
NOTE: The tone is a sine wave with about 1%
distortion
Selecting Audio Phase
Microphone wiring and other vagaries can alter the
phase of an audio signal. To compensate for this, the
phase of the audio output of each receiver module can
be inverted.
1. Navigate to the Phase setup screen.
2. Select each receiver module with the Receiver
Select Button and adjust the phase with the MENU/
SELECT control.
Selecting Transmitter Battery Status
Monitoring Mode
The receiver will monitor the status of the batteries in
the transmitters and display it when used with certain
transmitters, such as Lectrosonics 200 Series and Digi
tal Hybrid models. The type of battery being used in the
transmitter must be defined in the TxBatt setup screen.
NOTE: The Compat Mode (compatibility mode)
set for each receiver module will determine which
battery monitoring methods are available
The TxBatt setup screen allows you to select the exact
battery being used in the transmitter to provide more
accurate battery level monitoring. Alkaline, lithium and
rechargeable AA and 9V types are commonly used.
The voltage declines gradually over the life of alkaline
and lithium types, so the voltage can be estimated and
displayed by the receiver. Rechargeable types, on the
other hand, maintain almost constant voltage as they
discharge, so a timer is provided in the receiver to
track operating time and anticipate the need for battery
changes.
1. Navigate to the TxBatt setup screen.
LECTROSONICS, INC.
16