Motorola Astro Digitalport Saber Detailed 68p81076c10 A Manual

 
ª Digital SABERª 
and 
/R 
Portable Radios
Detailed Service Manual 

 
i
 
Table of Contents 
1 - Foreword  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  1-1  
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Radio Frequency (RF) Operational Characteristics  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Portable Radio Operation and EME Exposure . . . . . . . . . . . . ....

 
ii
 
6 - 800MHz Transceiver Board Detailed Theory of Operation  . . . . . . . . . . . . . . . . . . .  6-1 
Introduction  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  6-1
Frequency Synthesis  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  6-1
Antenna Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

 
iii
 
List of Figures 
Figure 1 . B+ Routing for VHF/UHF Transceiver Boards .................................................................. 4-2
Figure 2. B+ Routing for 800MHz Transceiver Boards .................................................................... 4-3
Figure 3. B+ Routing for Vocoder/Controller (VOCON) Boards .................................................... 4-5
Figure 4. VOCON Board - Controller Section...

 
iv
 
List of Schematics, Circuit Boards, 
and Parts Lists 
Radio Interconnect Diagram............................................................................................................  13-2
NLD8892R VHF Transceiver Board Schematic Diagram..................................................................  13-3
NLD8892R VHF Transceiver Circuit Board Details and Parts List ...................................................  13-4
NLE4560K UHF Range 1 Transceiver Board Schematic Diagram...

 
1-1
 
Foreword 
1 
Safety 
SAFETY AND GENERAL INFORMATION
IMPORTANT INFORMATION ON SAFE AND EFFICIENT 
OPERATION
READ THIS INFORMATION BEFORE USING YOUR 
MOTOROLA TWO-WAY RADIO  
The information provided in this document supersedes the general 
safety information contained in user guides published prior to October 
2000. For information regarding radio use in a hazardous atmosphere 
refer to the Factory Mutual (FM) manual supplement included with 
radio models that offer this capability and/or the...

 
1-2
 
Exposure to Radio Frequency Electromagnetic Fields in the 
Frequency Range from 3 kHz to 300 GHz, 1999 
• 
Australian Communications Authority Radiocommunications 
(Electromagnetic Radiation - Human Exposure) Standard 1999 
(applicable to wireless phones only) 
To assure optimal radio performance and make sure human 
exposure to radio frequency electromagnetic energy is within the 
guidelines set forth in the above standards, always adhere to the 
following procedures: 
Two-way Radio Operation...

 
1-3
 
Electromagnetic Interference/Compatibility 
NOTE: 
Nearly every electronic device is 
susceptible to electromagnetic 
interference (EMI) if inadequately 
shielded, designed or otherwise 
configured for electromagnetic 
compatibility. 
Facilities 
To avoid electromagnetic interference and/or compatibility conflicts, 
turn off your radio in any facility where posted notices instruct you to 
do so. Hospitals or health care facilities may be using equipment that 
is sensitive to external RF energy....

 
1-4
 
SAFETY AND GENERAL 
Use While Driving 
Check the laws and regulations on the use of radios in the area where 
you drive. Always obey them.
When using your radio while driving, please: 
• 
Give full attention to driving and to the road. 
• 
Use hands-free operation, if available. 
• 
Pull off the road and park before making or answering a call if 
driving conditions so require. 
OPERATIONAL WARNINGS 
FOR VEHICLES WITH AN AIR BAG
POTENTIALLY EXPLOSIVE ATMOSPHERES
BLASTING CAPS AND AREAS 
Do not...

 
1-5
 
OPERATIONAL CAUTIONS 
ANTENNAS
BATTERIES 
INTRINSICALLY SAFE RADIO INFORMATION 
FMRC Approved Equipment 
Anyone intending to use a radio in a location where hazardous 
concentrations of flammable material exist (hazardous atmosphere) is 
advised to become familiar with the subject of intrinsic safety and with 
the National Electric Code NFPA 70 (National Fire Protection 
Association) Article 500 (hazardous [classified] locations).
An Approval Guide, issued by Factory Mutual Research Corporation...