User's Manual
UHF Digital Hybrid Wireless
®
Rio Rancho, NM
23
PHASE
This setup screen allows the audio output polarity to be 
inverted to match other microphones or audio sources.
TXBAT
•  AA - Transmitter uses a AA alkaline battery.
•  AAL - Transmitter uses a AA lithium battery (not 
rechargeable).
•  AAT - Transmitter uses an alkaline, lithium or 
rechargeable AA battery. Monitor the battery status 
with the timer in the receiver.
•  LB - Transmitter uses a Lectrosonics LB-50 re-
chargeable battery.
•  LBT - Transmitter uses a Lectrosonics LB-50 re-
chargeable battery.
•  9V - Transmitter uses a 9V alkaline battery.
•  9VL - Transmitter uses a 9V lithium battery (not 
rechargeable).
•  9VT - Transmitter uses a 9V battery of any type. 
Monitor its status with the timer in the LCD Main 
Window. 
MIXTRIM and MIXMODE
When set to the SWITCHED (dual channel mode), 
special options are available to allow the audio from the 
receivers to be mixed to either one or both audio output 
channels. 
The MIXMODE setting determines which audio signal 
appears at which output channel:
•  MIXBOTH mixes the audio and delivers the mix to 
both output channels.
•  MIXTO 1 mixes the audio and delivers the mix to 
output channel 1.
•  MIXTO 2 mixes the audio and delivers the mix to 
output channel 2.
•  DIRECT keeps the audio separated and delivers 
receiver 1 audio to output channel 1, and receiver 2 
audio to output channel 2.
The MIXTRIM setting applies attenuation up to 20dB in 
1 dB steps to adjust the ratio of the two audio signals in 
the mix. This adjustment takes effect only when a mix 
mode is selected (it is ignored when the mix mode is 
set to DIRECT).
IMPORTANT: The output level of each receiver 
is adjusted with the LEVEL setup screen, which 
is hardware-based, so it affects the output level 
regardless of which mix mode is selected. MIXTRIM 
then applies attenuation to that level setting resulting in 
the final level delivered to the output channel. It is good 
practice to set the output level of both receivers to 
the same value when using a mix mode.
When a MIXMODE is selected, each audio signal is au-
tomatically attenuated by 6 dB prior to the mixing. This 
is done to avoid overload and potential distortion since 
mixing increases the level by 6 dB.
TONE
The TONE setup screen enables an audio test tone at 
the receiver output for precise level matching with other 
equipment. The first screen prompts you to press the 
UP or DOWN button to enable the tone at the receiver 
output. Press MENU/SEL to toggle between receivers.
The first screen prompts you to 
press the UP or DOWN button to 
start the tone.
RECEIVER 2
TONE?
00+05
Once the button is pressed, a 1 kHz tone is enabled, 
and its level can be adjusted with additional presses on 
the UP or DOWN buttons.
The level set here will be retained in the regular operat-
ing mode. It will supersede the setting made in the 
LEVEL setup screen. The test tone has 1% distortion 
and is intended for confirmation of output levels only. 
To exit the test tone screen and stop the tone press the 
BACK button.
Front Panel Shortcuts
A convenient shortcut is available from any setup 
screen that displays the two receiver selection options 
next to each other, such as the LEVELS and STEPSIZE 
screens. Once the value has been set on one receiver, 
the same value can be copied to the other receiver with 
a simple button push combination.
Hold the MENU/SEL button and press the DOWN arrow 
to copy the value set on receiver 1 to receiver 2. Hold 
MENU/SEL and press UP to copy the value set on 
receiver 2 to receiver 1.
+05
00 00
LEVEL LEVEL
00
Hold MENU and 
press UP arrow
NOTE: It does not matter which receiver is selected 
(highlighted).
Accessing Block 606
Band B1, B2 and C1 SRc receivers can be used with 
legacy Block 606 Lectrosonics transmitters by invoking 
a special Block 606 legacy mode so the correct pilot 
tones will be present. To invoke the Block 606 mode, 
press the BACK button as needed to move to the Main 
Window, then press the PWR/BACK and DOWN arrow 
buttons simultaneously. Use the UP and DOWN arrows 
buttons to select the desired tuning range.
Beginning with firmware v1.13, the LCD will simply 
display 606 on the setup screen. Previous firmware ver-
sions display 606B or 606C if you are a using Band B1 
or C1 unit. When the mode is enabled, 606 will appear 
in the frequency selection screen as a reminder that the 
mode is enabled.
Note: Neither Band B1 nor Band C1 includes all Block 
606 frequencies.










