User guide

Frequency-Agile UHF Belt-Pack Transmitter
Table of Contents
Introduction ............................................................................................................................................................................................4
Digital Hybrid Technology .....................................................................................................................................................................4
Input Limiter ..........................................................................................................................................................................................5
No Pre-Emphasis/De-Emphasis ...........................................................................................................................................................5
Pilot Tone Squelch ................................................................................................................................................................................5
Wide-Band Deviation ............................................................................................................................................................................5
Long Battery Life ..................................................................................................................................................................................5
Frequency Agility .................................................................................................................................................................................. 5
Antenna ................................................................................................................................................................................................5
Controls and Functions .........................................................................................................................................................................6
Mic Input Jack .......................................................................................................................................................................................6
Power ON/OFF Switch .........................................................................................................................................................................6
Power LED............................................................................................................................................................................................6
Frequency Select Switches .................................................................................................................................................................. 6
Modulation LEDs ..................................................................................................................................................................................6
Audio Level ...........................................................................................................................................................................................6
Antenna ................................................................................................................................................................................................6
Belt Clip ................................................................................................................................................................................................6
Battery Installation ................................................................................................................................................................................. 7
Operating Instructions ..........................................................................................................................................................................8
Selecting Compatibility Mode ...............................................................................................................................................................8
Attaching a Microphone or Musical Instrument and Adjusting Audio Levels ........................................................................................ 8
Adjusting the Transmitter Frequency ....................................................................................................................................................9
5-Pin Input Jack Wiring ........................................................................................................................................................................ 10
RF Bypassing ..................................................................................................................................................................................... 10
Line Level Signals ..............................................................................................................................................................................11
Wiring Hookups for Different Sources ................................................................................................................................................ 11
Wiring Diagram for MI33A Instrument Cable ......................................................................................................................................11
Troubleshooting ...................................................................................................................................................................................12
Specifications and Features ...............................................................................................................................................................13
Service and Repair .............................................................................................................................................................................14
Returning Units for Repair .................................................................................................................................................................. 14
The LM and IM transmitters are FCC type accepted under Part 74: 536-608 MHz and 614-806 MHz
Rio Rancho, NM 3