Lectrosonics UH400a User Manual

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Frequency Agile Plug-On UHF Transmitter

Table of Contents

General Technical Description ..............................................................................................................................................................4

Introduction ...........................................................................................................................................................................................4

Digital Hybrid Technology .....................................................................................................................................................................4

Input Limiter ..........................................................................................................................................................................................5

No Pre-Emphasis/De-Emphasis ...........................................................................................................................................................5

Pilot Tone Squelch ................................................................................................................................................................................5

Long Battery Life...................................................................................................................................................................................5

Frequency Agility...................................................................................................................................................................................5

Controls and Functions .........................................................................................................................................................................6

Power Switch ........................................................................................................................................................................................6

Power ON/OFF LED .............................................................................................................................................................................6

Phantom Power Voltage Select Switch .................................................................................................................................................6

Frequency Select Switches...................................................................................................................................................................7

Input Jack..............................................................................................................................................................................................7

Modulation LEDs...................................................................................................................................................................................7

Input Signal Level..................................................................................................................................................................................7

Input Gain Adjustment ..........................................................................................................................................................................7

Compatibility Mode Indicators...............................................................................................................................................................8

Block Numbers and Freqeuncy Ranges...............................................................................................................................................9

Operating Instructions.........................................................................................................................................................................10

Attaching the Microphone ...................................................................................................................................................................10

Selecting the Compatibility Mode........................................................................................................................................................10

Adjusting the Transmitter Frequency...................................................................................................................................................11

Battery Replacement ..........................................................................................................................................................................11

Using the Polarity- Reversing Barrel Adapter....................................................................................................................................12

Accessories ..........................................................................................................................................................................................12

Troubleshooting....................................................................................................................................................................................13

Specifications and Features................................................................................................................................................................14

Service and Repair ...............................................................................................................................................................................15

Returning Units for Repair ..................................................................................................................................................................15

Rio Rancho, NM

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