Diversity Pairing - Lectrosonics Venue 2 Installation Manual

Modulation (audio level)
Full modulation (onset of limiting)
Transmitters also have modulation indicators such as
the LEDs on the SM Series models.
Modulation LEDs (audio level)
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
Full modulation is achieved when the -20 LED first
turns red. The output level of the receiver reaches
maximum at this point, when the limiter in the transmit-
ter begins to operate.
The output level control on the receiver is basically an
attenuator, so the signal to noise ratio changes very
little across the entire adjustment range.
Rio Rancho, NM, USA
-20 LED -10 LED
Off Off
Green Off
Green Green
Red Green
Red Red
Digital Hybrid Wireless
Optimizing the Signal to Noise Ratio
Given the information above, the optimum signal to
noise ratio is achieved when the least amount of gain
is applied to the signal, since gain (amplification) is the
source of noise buildup.
The transmitter input preamp is the low noise gain
stage at the beginning of the signal chain. The ideal
setup is to have this be the only gain stage, and sub-
sequent stages be at unity (zero gain/loss). Attenuation
(loss) in a subsequent stage is OK unless it requires
another gain stage to compensate for it.
1) Set the transmitter gain so that full modulation is
achieved on louder peaks in the audio
2) Set the receiver output level as high as possible
without overloading the connected device it is
feeding (mixer, recorder, etc.). Use a line level
input on the connected device whenever it is avail-
able. This minimizes the gain needed in the device
and maximizes the signal to noise ratio.

Diversity Pairing

Naviagate to the DIVERSITY LINK screen in the RX
Menu. Press the encoder to open the setup screen.
Selected receiver pair
marked by brackets
Highlight to select
receiver pair
Select CHOOSE RX on the bottom of the screen and
rotate the encoder to select the desired pair. The re-
ceivers are arranged so that adjacent units are paired
when the RATIO mode is set. When the SWITCHED
mode is set, the units operate independent of one
another.
Modular Receiver System
®
Highlight to set diversity mode
of selected receiver pair
13