Lectrosonics SRa Series User Manual
Page 3
UHF Digital Hybrid Wireless
®
Rio Rancho, NM
3
Quick Start Summary
The following checklist includes the minimum required
settings to start using the receiver.
• Install either stand-alone or camera slot adapter kit,
the antennas and position the receiver as it will be
used (see pages 9-12).
• Connect power to the receiver (see pages 10,11).
• Set the COMPAT (compatibility) mode for the trans-
mitters to be used (see pages 15,16).
• Find clear operating frequencies for one or both
receivers (see pages 19-21).
NOTE: When operating in the 2-channel mode,
always set Receiver 2 to a higher frequency than
Receiver 1 by least 400 kHz (four standard steps
on the switches).
• Set transmitters on the matching frequencies (see
transmitter manual).
• Verify transmitters are set to the same compatibility
mode as the receiver (see transmitter manual).
• Adjust transmitter/s input gain to match voice level
and mic position (see transmitter manual).
• Adjust receiver output level as needed for the cam-
era or mixer input level desired (see pages 15,16).
Table of Contents
Model Differences ................................................................... 4
SRa5P ................................................................................... 4
SRa ....................................................................................... 4
General Technical Description .............................................. 5
RF Front-End and Mixer ........................................................ 6
Microcontroller, PLL and VCO Circuits.................................. 6
IF Amplifiers and SAW Filters ............................................... 6
Digital Pulse Counting Detector ............................................ 6
DSP-Based Pilot Tone ........................................................... 6
SmartSquelch™ .................................................................... 6
Smart Noise Reduction (SmartNR
) .................................... 6
Dynamic Filter and Squelch .................................................. 7
RF-Controlled Digital Noise Filter ......................................... 7
Audio Output Level ............................................................... 7
Test Tone ............................................................................... 7
Power Supply ........................................................................ 7
LCD Display .......................................................................... 7
Front Panel Controls and Functions ..................................... 8
Audio Outputs ....................................................................... 8
LCD Screen .......................................................................... 8
MENU/SEL Button ................................................................ 8
PWR/BACK Button ............................................................... 8
UP/DOWN Arrow Buttons ..................................................... 8
Rear Panel and Adapters ....................................................... 8
Camera Slot Adapters ........................................................... 9
Installing Camera Slot Adapters ........................................... 9
Adapters for Stand-alone Use ............................................. 10
Installing Rear Panel Adapters............................................ 10
Replacement Screw Kits ..................................................... 10
Battery Adapter ................................................................... 10
Audio Output Cables ........................................................... 11
External Power Cables ........................................................ 11
Mounting and Orientation .................................................... 12
Whip Antennas ..................................................................... 13
Jointed Whip Antennas ........................................................ 14
Main Window (LCD) .............................................................. 15
Navigating the LCD .............................................................. 16
Main Window ....................................................................... 17
Frequency Screen ............................................................... 17
Setup Screens .................................................................... 17
Front Panel Shortcuts ......................................................... 19
Front Panel Controls ........................................................... 19
LCD Backlight Setup ........................................................... 19
Scanning for Clear Frequencies ......................................... 20
Scan View Window .............................................................. 20
Zoom View Window ............................................................. 20
Pre-coordinated Frequencies .............................................. 21
Frequency Coordination ...................................................... 22
Multi-channel System Checkout ......................................... 22
Specifications and Features ................................................ 23
Troubleshooting .................................................................... 24
Service and Repair ............................................................... 26
Returning Units for Repair .................................................. 26