Справочник Пользователя для Lectrosonics Inc LTA1

Digital Hybrid Wireless Belt-Pack Transmitter

Rio Rancho, NM

3

Consumer Alert for US Users - FCC Order DA 10-92

Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this micro-
phone system without a license is subject to certain restrictions: the system may not cause harmful interference; it 
must operate at a low power level (not in excess of 50 milliwatts); and it has no protection from interference received 
from any other device. Purchasers should also be aware that the FCC is currently evaluating use of wireless mi-
crophone systems, and these rules are subject to change. For more information, call the FCC at 1-888- CALL-FCC 
(TTY: 1-888-TELL-FCC) or visit the FCC’s wireless microphone website at www.fcc.gov/cgb/wirelessmicrophones.   
To operate wireless microphone systems at power greater than 50mW, you must qualify as a Part 74 user and be 
licensed. If you qualify and wish to apply for a license go to: http://www.fcc.gov/Forms/Form601/601.html

Table of Contents

About Digital Hybrid Wireless

® .................................................................................4

Frequency Agility...................................................................4
Wide-Band Deviation ............................................................4
Servo Bias Input and Wiring .................................................4
DSP-controlled Input Limiter .................................................5
No Pre-Emphasis/De-Emphasis ...........................................5
Pilot Tone Squelch ................................................................5
LT Block Diagram ..................................................................5

Battery Status LED Indicator ................................................7
Powering On in Operating Mode ...........................................7
Powering On in Standby Mode .............................................8
Powering Off .........................................................................8
Navigating Menus .................................................................8
Adjusting LCD Backlight .......................................................8
RF ON/OFF on the Menu ......................................................8
Power Menu ..........................................................................8
Locking/Unlocking Changes to Settings................................9
Selecting Programmable Switch Functions...........................9
Main Window Indicators ........................................................9
Selecting the Compatibility (Compat) Mode ........................10
Connecting the Signal Source ............................................10
Using Line Level and Instrument Inputs  .............................10
Selecting the Low Frequency Roll-off .................................10
Adjusting the Input Gain ......................................................11
Selecting Step Size .............................................................11
Selecting Frequency ...........................................................11
Selecting Frequency Using Two Buttons .............................12
Helpful Features on Receivers ............................................12
About Overlapping Frequency Blocks .................................12
Selecting Audio Polarity (Phase) .........................................12
Selecting Battery Type ........................................................12
Enabling Remote Control ....................................................13
Setting Transmitter Output Power .......................................13
Restoring Default Settings ..................................................13

Compatible Wiring for Both Servo Bias Inputs 
and Earlier Transmitters: .....................................................16 
Simple Wiring - Can ONLY be used with 
Servo Bias Inputs: ...............................................................16
Microphone RF Bypassing ..................................................17
Line Level Signals ...............................................................17
Wiring Diagram for MI39A Instrument Cable ......................17

Powering the RM on and off ................................................18
RM Functions and Operation ..............................................18
Operating Notes ..................................................................19

Returning Units for Repair ..................................................23