User's Manual
SRc5P and SRc Dual Receivers
LECTROSONICS, INC.
24
SmartTune is the easiest and fastest way to scan the 
local RF spectrum and find clear operating frequencies.
The receiver will scan through its tuning bandwidth and 
automatically find “empty” areas within the tuning range 
that have little or no RF energy. The receiver will then 
be set to a frequency within an empty area and prompt 
you to continue or use the IR function to sync to a trans-
mitter.
Note: Pressing BACK during an active scan will restore 
the operating frequency to what it was set at pre-scan.
When the DIVMODE is set to SWITCHED, there are 
two different frequencies that can be discovered, so the 
LCD screens will prompt you through the procedure for 
one receiver, then continue to repeat the process for 
the other receiver. When the DIVMODE is set to RATIO, 
there is only one frequency to be found.
The sample screens shown here are for the 
SWITCHED mode. Similar screens appear for the 
RATIO mode, but there is only one frequency to be 
discovered.
Finding Clear Frequencies with SmartTune
TM
SETUP
SMARTUNE
Navigate to the SMARTUNE screen and 
press MENU/SEL.
SMART
TUNE
1
Use the UP and DOWN arrows to select 
receiver 1 or 2, and press MENU/SEL.
TX 1
BAND
B1
The scan can cover all three blocks in the 
band, or only one of the three. Use the 
UP and DOWN arrows to select the tuning 
range to be scanned:
B1 - the entire Band B1
21 - block 21 only
22 - block 22 only
23 - block 23 including TV37
23N - block 23 bypassing TV37*
B1N - Band B1 bypassing TV37*
*NOTE: 23N and B1N (“N” refers to North America) 
scans skip past TV Channel 37 (608 to 614 MHz) since 
it is reserved for radio astronomy in North America.
OK
SYNC
1
After the scanning is complete, the 
newly discovered frequency will be set 
automatically. The LCD will then prompt 
to SYNC the frequency to the matching 
transmitter via the IR port (DOWN 
ARROW), or to continue by pressing OK 
(MENU/SEL).
TUNE RX2
NOW? YES
After leaving the SYNC screen, the 
LCD will ask about setting up the other 
receiver. Use the UP and DOWN arrows to 
select YES to tune the other receiver, then 
press MENU/SEL to continue.
IS TX1
ON? YES
Turn on the transmitter that matches the 
first receiver that was tuned. Use the 
UP and DOWN arrows to select YES and 
press MENU/SEL.
OK
SYNC
2
After the scanning is complete, the 
newly discovered frequency will be set 
automatically. The LCD will then prompt 
to SYNC the frequency to the matching 
transmitter via the IR port (DOWN 
ARROW), or to continue by pressing OK 
(MENU/SEL).
Press the BACK button several times 
to return to the Main Screen and verify 
that both transmitters show a strong RF 
signal strength and that the Pilot Tone 
icons are NOT blinking (when Pilot Tone 
is enabled).
Pilot Tone icons (P)
RF signal strength
It is always good practice to verify the frequencies by 
going through the procedure in the section entitled 
Multi-channel System Checkout.










