Table of Contents
Advertisement
Quick Links
LBI-38653
Mobile Communications
MDS
440-512 MHz MOBILE RADIO
COMBINATION
TABLE OF CONTENTS
MAIN BOARD ASSEMBLY ........................................... LBI-38760
FRONT PANEL ASSEMBLY .......................................... LBI-38757
POWER AMPLIFIER ASSEMBLY................................. LBI-38761
SERVICE SECTION ........................................................ LBI-38759
Printed in U.S.A.
Maintenance Manual
Advertisement
Table of Contents
Related Manuals for Ericsson LBI-38653
Summary of Contents for Ericsson LBI-38653
- Page 1 LBI-38653 Mobile Communications 440-512 MHz MOBILE RADIO COMBINATION TABLE OF CONTENTS MAIN BOARD ASSEMBLY ........... LBI-38760 FRONT PANEL ASSEMBLY .......... LBI-38757 POWER AMPLIFIER ASSEMBLY......... LBI-38761 SERVICE SECTION ............LBI-38759 Printed in U.S.A. Maintenance Manual...
-
Page 2: Table Of Contents
Receiver coverage 440-470 MHz, 470-512 MHz Factory Tuned 450-462 MHz, 470-482 MHz RX Two Freq Spread 12 MHz (No degradation) Channel Spacing 25 kHz Sensitivity (12 dB SINAD) -117 dBm (.30 V) Copyright© February 1992, Ericsson GE Mobile Communications Inc. -
Page 3: Package Numbers
LBI-38653 LBI-38653 INTRODUCTION RADIO DESCRIPTION SPECIFICATIONS (Cont.) Spurious Emissions The Ericsson GE Conventional MDS Radio is a rugged MAIN BOARD ASSEMBLY Radiated Meets FCC requirements two-way FM mobile radio which operates in the 440-470 Conducted -57 dBm maximum MHz and 470-512 MHz frequency bands. The MDS is a wide... -
Page 4: Front Panel Assembly
LBI-38653 LBI-38653 amplitude of the noise. This DC voltage is applied to a compa- contains the Power Amplifier Board mounted to an aluminum Receiver Reference voltage for Transmit RF power output rator. The output from the comparator is fed to the microproces- diecast heat sink. -
Page 5: Battery Power
LBI-38653 LBI-38653 Talkaround Digital Channel Guard Table 2 - Primary and Equivalent Digital Codes (OCTAL) PRIMARY EQUIVALENT PRIMARY EQUIVALENT PRIMARY EQUIVALENT Radio to radio direct communication is possible on a Channel Guard provides a means of restricting calls to CODE CODE CODE CODE... -
Page 6: Detailed Type 99 Operation And Programming
LBI-38653 LBI-38653 For example, assume the paging number to be 123. The first Table 4 - Tone Generator Frequencies The Motorola tone format is illustrated as follows: DETAILED TYPE 99 OPERATION digit of the paging number is a 1. Look in Table 3 and read down AND PROGRAMMING TONE TONE... -
Page 7: Mechanical Parts List
MECHANICAL PARTS LIST LBI-38653 LBI-38653 Table 5 - Motorola Type Coder Numbers Example 1 - Group Call Code 07 (also code 27 and 37): Group from Group from The digit "0" in Table 5 shows that Tone B is in Tone First Digit Which Tone A Which Tone B... - Page 8 LBI-38653 LBI-38653 Figure 1 - MDS Conventional Radio Block Diagram...
-
Page 9: Mechanical Parts Breakdown
LBI-38653 MECHANICAL PARTS BREAKDOWN LBI-38653... - Page 10 LBI-38653 LBI-38653 This page intentionally left blank...