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GM950
Motorola GM950 Manuals
Manuals and User Guides for Motorola GM950. We have
7
Motorola GM950 manuals available for free PDF download: Manual, User Manual, Installation Manual
Motorola GM950 Manual (92 pages)
Band Specific Information
Brand:
Motorola
| Category:
Radio
| Size: 3.8 MB
Table of Contents
5
Table of Contents
7
Model Chart
7
Overview
8
Service Options
9
General
9
Transmitter
10
Receiver
10
Self-Quieting Frequencies
11
Table of Contents
13
General
13
Chapter 5C
13
Midband (66-88Mhz) Tuning Procedure
15
Battery Threshold
15
PA Bias Voltage
16
Reference Oscillator
16
Transmitter Power
17
Front-End Filter
18
Rated Volume
18
Squelch
19
Transmit Deviation Limit
19
Transmit Modulation Balance (Compensation)
20
Tone (SELECT 5) Transmit Deviation
21
DTMF Transmit Deviation
23
Table of Contents
24
Paragraph Page
25
Overview
25
Open Controller
25
General
25
Voltage Regulators
26
Electronic On/Off
27
Emergency
27
Mechanical On/Off
27
Ignition
27
Hook RSS
28
Microprocessor Clock Synthesizer
28
Serial Peripheral Interface (SPI)
29
SPEB Serial Interface
30
General Purpose Input/Output
30
Normal Microprocessor Operation
32
FLASH Electronically Erasable Programmable Memory (FLASH EEPROM)
32
Electrically Erasable Programmable Memory (EEPROM)
33
Static Random Access Memory (SRAM)
33
Controller Board Audio and Signalling Circuits
33
General
33
Audio Signalling Filter IC (ASFIC)
33
Audio Ground
34
Transmit Audio Circuits
34
MIC Input Path
35
External MIC Path
35
PTT Sensing and TX Audio Processing
35
TX Secure Audio (Optional)
36
Sub-Audible Data (PL/DPL)
36
Transmit Signalling Circuits
37
Dual Tone Multiple Frequency (DTMF) Data
37
High Speed Data
38
Receive Audio Circuits
38
Squelch Detect
39
Audio Amplification Speaker (+) Speaker (-)
39
Audio Processing and Digital Volume Control
40
Filtered Audio
40
Handset Audio
40
RX Secure Audio (Optional)
41
Alert Tone Circuits
41
Receive Signalling Circuits
43
Midband (66-88Mhz) Specific Circuit Description
43
Mixer and Intermediate Frequency (IF) Section
43
Receiver Front-End
44
If IC (U2201)
44
Power Controlled Stage
44
Transmitter Power Amplifier (PA) 5-25W
45
Antenna Switch
45
Directional Coupler
45
PA Stages
46
Harmonic Filter
46
Power Control
47
Fractional-N Synthesizer (U2701)
47
Frequency Synthesis
47
Reference Oscillator
48
Synthesizer Operation
48
Voltage Controlled Oscillator (VCO)
51
Table of Contents
53
PCB Layout Component Side
54
PCB Layout Solder Side
55
Open Controller Schematic Diagram 1 of 2
57
Open Controller_Io Schematic Diagram 2 of 2
58
Parts List
59
Supply Voltage Schematic Diagram
60
Parts List
61
Power Control Schematic Diagram
62
Parts List
63
Power Amplifier 5-25W Schematic Diagram
64
Parts List
65
Synthesizer Schematic Diagram
66
Parts List
67
Voltage Controlled Oscillator Schematic Diagram
68
Parts List
69
RX-FE Schematic Diagram
70
Parts List
71
RX-IF Schematic Diagram
72
Parts List
73
PCB Layout Component Side
74
PCB Layout Solder Side
75
Power Control Schematic Diagram
76
Parts List
77
Power Amplifier 5-25W Schematic Diagram
78
Parts List
79
Synthesizer Schematic Diagram
80
Parts List
81
RX-IF Schematic Diagram
82
Parts List
83
PCB Layout Component Side
84
PCB Layout Solder Side
85
Open Controller Schematic Diagram 1 of 3
86
Parts List
87
Open Controller_Audio Schematic Diagram 2 of 3
89
Open Controller_Io Schematic Diagram 3 of 3
91
Supply Voltage Schematic Diagram
92
Parts List
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motorola GM950 Manual (18 pages)
Control Heads/Control Microphones Specific Information
Brand:
motorola
| Category:
Radio
| Size: 0.74 MB
Table of Contents
5
Table of Contents
7
Overview
7
Mechanical Parts List
7
Chapter 4C
8
Theory of Operation
8
General
8
Power Supplies
8
Power On / Off
8
PTT Button
8
ON/OFF Hook Control
9
Keypad and Top Keys
9
Switch Functions
9
Status LED and Back Light Circuit
10
Liquid Crystal Display (LCD)
10
Microphone Amplifier
10
Speaker
10
Connections to the Radio
11
Electrostatic Transient Protection
11
Jumper Functions
Motorola GM950 Manual (18 pages)
Control Heads/Control Microphones Specific Information
Brand:
Motorola
| Category:
Radio
| Size: 0.45 MB
Table of Contents
5
Table of Contents
7
Overview
7
Chapter 4D
8
Exploded View Diagram
8
Theory of Operation
8
General
9
Power Supplies
9
Voltage Regulator Circuit
9
Power On / Off
10
Microprocessor Circuit
10
Serial Peripheral Interface (SPI)
11
Keypad Keys
11
Status LED and Back Light Circuit
11
Liquid Crystal Display (LCD)
12
Microphone Connector
12
Electrostatic Transient Protection
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Motorola GM950 User Manual (11 pages)
Brand:
Motorola
| Category:
Car Receiver
| Size: 0.23 MB
Table of Contents
1
Table of Contents
1
Safety Information
2
General Information
2
Radio Controls and Indicators
3
Audio Signals
3
Display Icons
4
Radio On/Off
4
Call Set Up
4
Channel Selection
4
Address Selection
5
Status Selection
5
Sending a Selective Call
5
Communication Procedures
5
Call Termination
6
Receiving a Selective Call
6
Call in Absence
7
Dtmf
7
Option Button Functions
9
Computer Software Copyright
Motorola GM950 User Manual (9 pages)
Motorola Portable Radio User Guide
Brand:
Motorola
| Category:
Radio
| Size: 0.14 MB
Table of Contents
1
Table of Contents
1
Safety Information
2
General Information
2
Radio Controls and Indicators
3
Audio Signals
3
Display Icons
3
Radio On/Off
4
Channel Selection
4
4-Channel Model
4
Channel Without Selective Call Functions
4
Communication Procedures
4
Call Termination
5
Channel with Selective Call Functions
5
Address Selection
5
Status Selection
5
Sending a Selective Call
5
Receiving a Selective Call
6
Option Button Functions
7
Computer Software Copyright
9
Overview
Motorola GM950 Manual (16 pages)
Control Heads/Control Microphones Specific Information
Brand:
Motorola
| Category:
Radio
| Size: 0.33 MB
Table of Contents
5
Introduction/Theory of Operation
7
Exploded View Diagram
8
Theory of Operation
8
Power Supplies
8
Keypad Keys
8
Status Led and Back Light Circuit
9
Liquid Crystal Display (Lcd)
9
Microphone Connector
9
Electrostatic Transient Protection
Motorola GM950 Installation Manual (10 pages)
Remote Mount Kit
Brand:
Motorola
| Category:
Radio
| Size: 0.12 MB
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