Lectrosonics Inc UH400 User Manual

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UH400
LECTROSONICS, INC.
INTRODUCTION
Thank you for selecting the Lectrosonics UH400 frequency agile, plug-on transmitter.  The
UH400 combines over 80 years of engineering experience with the very latest components, in a
design that addresses the most demanding professional applications.
The design of the UH400 was the direct result of numerous conversations with users, staging and
touring companies and dealers across the US.  The specific concerns and needs brought up in
these conversations led directly to the development of the operational features offered on the
UH400.  Two hundred fifty six frequencies are user selectable in 100kHz steps to alleviate
interference problems in travelling venues.
The UH400 is a rugged, machined aluminum package.  Selectable voltage phantom power is
provided on pins 2 and 3.  Level indicating LEDs are provided to make level settings quick and
accurate, without having to view the receiver.  The battery compartment accepts any 9 Volt
alkaline or lithium battery and makes a positive connection via self-adjusting contacts.
Only the UH400 transmitter is covered in this manual.  Companion receivers are covered in
separate manuals.  The UH400 will operate with any 100, 200 or 400 Series Lectrosonics
receiver in the same frequency group.
The UH400 transmitter is FCC type accepted under Part 74:  470 - 608MHz and 614 - 806MHz
TABLE OF CONTENTS
INTRODUCTION ..................................................................................................... 2
GENERAL TECHNICAL DESCRIPTION ............................................................... 3
CONTROLS AND FUNCTIONS ............................................................................. 4
OPERATING INSTRUCTIONS ............................................................................... 6
TROUBLESHOOTING ............................................................................................ 8
SPECIFICATIONS AND FEATURES .................................................................. 10
SERVICE AND REPAIR ...................................................................................... 11
RETURNING UNITS FOR REPAIR ..................................................................... 11
WARRANTY ........................................................................................... Back cover