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LMb
LECTROSONICS, INC.
10
Selecting Step Size
This menu item allows frequencies to be selected in 
either 100 kHz or 25 kHz increments.
Compat
StepSiz
Phase
Locked
StepSiz
100 kHz
25 kHz
StepSiz
100 kHz
25 kHz
If the desired frequency ends in .025, .050 or .075 MHz, 
the 25 kHz step size must be selected.
Normally, the receiver is used to find a clear operat-
ing frequency. All Lectrosonics Digital Hybrid Wireless
®
 
receivers provide a scanning function to quickly and 
easily find prospective frequencies with little or no RF 
interference. In other cases, a frequency may be speci-
fied by officials at a large event such as the Olympics 
or a major league ball game. Once the frequency is 
determined, set the transmitter to match the associated 
receiver.
Selecting Frequency
The setup screen for frequency selection offers several 
ways to browse the available frequencies.
Gain
Freq.
MuteSw
Compat
Freq.
b 19
494.500
51
Press MENU/
SEL to select 
one of four 
fields to make 
adjustments
Each field will step through the available frequencies in 
a different increment. The increments are also different 
in the 25 kHz mode from the 100 kHz mode.
Freq.
b 19
494.500
51
Freq.
b 19
494.
500
51
These two fields step in 25 kHz 
increments when the step size is 25 
kHz and 100 kHz increments when 
the step size is 100 kHz.
Freq.
19
494.500
51
Freq.
b 19
494
.500
51
These two fields 
always step in the 
same increments
1 MHz steps
1 block steps 
A fraction will appear next to the hex code in the setup 
screen and in the main window when the frequency 
ends in .025, .050 or .075 MHz.
494.525
-40
-20
0
b 19
MUTE
1
4
51
Freq.
b 19
494.
525
51
1
4
Fraction appears 
next to hex code 
in 25 kHz mode
Selecting Frequency Using Two Buttons
Hold the MENU/SEL button in, then use the   and   
arrow buttons for alternate increments.
Freq.
19
494.500
51
1 block steps
1.6 MHz steps to 
nearest 100 kHz 
channel
10 MHz steps
100 kHz steps 
to next 100 kHz 
channel
100 kHz Mode
Freq.
b 19
494.
525
51
1
4
1 block steps
1.6 MHz steps
10 MHz steps
100 kHz steps
25 kHz Mode
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, step size and 
compatibility modes on the transmitter via an infrared 
link between the two units.