User's Manual
Wideband Digital Hybrid
®
 Plug-On Transmitter
Rio Rancho, NM
9
LCD Backlight Settings
The LCD backlight can be set to turn off after either 5 
minutes or 30 seconds or stay on continuously. Hold 
the UP arrow in while powering up the unit to enter 
the setup screen. Press the AUDIO button repeatedly 
to step through the setup items to reach the backlight 
settings screen. Use the UP or DOWN arrow button to 
select the desired setting.
Selecting Step Size mode
The frequency increments can be set at either 25 kHz 
or 100 kHz. Hold the UP arrow in while powering up the 
unit to enter the setup screen. Press the AUDIO button 
repeatedly to step through the setup items to reach the 
Step Size Mode screen. Use the UP or DOWN arrow 
button to select the desired setting.
Setting Transmitter Operating Frequency
1)  If the LCD is displaying something other than the 
Frequency Screen, press the FREQ button on the 
Control Panel to enter this screen.
Note: The default display is in MHz. Pressing 
the FREQ button again displays the operating 
frequency as a two-digit hexadecimal number that 
corresponds to legacy Lectrosonics products that 
used two 16-position switches to set the frequency.
2)  While holding the FREQ button, use the UP or 
DOWN arrow buttons to move the operating fre-
quency up or down.
Note: The operating frequency displayed on the 
LCD wraps as it reaches the upper or lower end of 
its range. Thus, if you intend to move the operating 
frequency from the lower end of the range to the 
upper end, it may be faster to do this by using 
the DOWN arrow until the frequency wraps to the 
upper end.
Set Up in 100kHz Mode
Frequency displayed as 
two-digit hexadecimal 
number
Frequency displayed
in MHz
The operating frequency can 
be displayed either in MHz 
or as a two-digit hexadeci-
mal number. The example of 
the two-digit display shown 
here indicates CH (channel) 
and 2C as the frequency.
The frequency can be set 
with the unit in standby 
mode or when powered up 
for normal operation.
Set Up in 25kHz Mode
The hexadecimal display in the 25 kHz mode will 
appear with a decimal suffix to indicate the 25 kHz 
steps.
644.400 MHz
644.425 MHz
644.450 MHz
644.475 MHz
Lock/Unlock Screen
Simultaneously pressing and holding both the UP and 
DOWN arrow buttons during normal operation starts 
the Lock timer. The timer starts at three and counts 
down to zero. When the timer reaches zero, the key-
pad controls are locked.
The LCD will display the locked condition as long as 
the arrow buttons are held, then revert back to the 
previous screen when either button is released.
With the controls locked, the AUDIO and FREQ but-
tons can still be used to display current settings. Any 
attempt to change a setting by pressing either the UP 
or DOWN arrow button will result in an on-screen Loc 
reminder that the controls are locked. Remove the 
batteries to unlock the control panel.
Important: Once the transmitter is locked, 
it cannot be unlocked or powered off using 
the buttons. The only way to unlock a locked 
transmitter is to remove the batteries. 










