EFJohnson 9800, 988X, 984X, 989X User Manual

MOBILE

SERVICE

MANUAL

984X SERIES

(UHF)

988

X SERIES (800 MHZ)

989X S

ERIES (900 MH

25 or 40 Watts (UHF); 15 or 30 Watts (800/900 MHz)

13.6 VDC Part No. 242-98xx-xxx

First Printing

January 2001

Supersedes: Part No. 001-9800-200, 9/99

Remote-Mount

98xx-SERIES

FM TWO-WAY RADIO

SERVICE MANUAL

13.6 VDC 25 or 40 Watts, UHF 15 or 30 Watts, 800/900 MHz

Part No. 242-984x-2xx (UHF) Part No. 242-988x-2xx (800 MHz) Part No. 242-989x-2xx (900 MHz)

systems solutions for public safety, government, and commercial customers. The company designs, manufactures, and markets conventional and trunked radio systems, mobile and portable subscriber radios, repeaters, and Project 25 digital radio products.

Viking Head/EFJohnson logo, LTR of the E.F. Johnson Company. SMARTNET™ and SmartZone Inc. All other company and/or product names used in this manual are trademarks and/or registered trademarks of their respective manufacturer.

Information in this manual is subject to change without notice.

, LTR-Net™, Multi-Net®, and Call Guard® are trademarks

are trademarks of Motorola,

TABLE OF CONTENTS

1 GENERAL INFORMATION

1.1 SCOPE OF MANUAL. . . . . . . . . . . . . . . . . . . .1-1

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

LTR

, Low Tier, and Data Models . . . . . . . . . . 1-1

1.2 TRANSCEIVER DESCRIPTION. . . . . . . . . . . 1-1

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Available Frequency Bands . . . . . . . . . . . . . . . . 1-1

Front and Remote Mounting . . . . . . . . . . . . . . . 1-2

NPSPAC Models (800 MHz Only) . . . . . . . . . . 1-2

Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Transceiver Alignment. . . . . . . . . . . . . . . . . . . . 1-2

1.3 PART NUMBER BREAKDOWN. . . . . . . . . . .1-2

1.4 TRANSCEIVER IDENTIFICATION . . . . . . . .1-3

1.5 ACCESSORIES. . . . . . . . . . . . . . . . . . . . . . . . .1-3

1.6 PRODUCT WARRANTY . . . . . . . . . . . . . . . . .1-4

1.7 FACTORY CUSTOMER SERVICE . . . . . . . .1-4

1.8 FACTORY RETURNS . . . . . . . . . . . . . . . . . . .1-5

1.9 REPLACEMENT PARTS. . . . . . . . . . . . . . . . .1-5

1.10 INTERNET HOME PAGE. . . . . . . . . . . . . . . . .1-5

2 INSTALLATION

2.1 GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1

Scope of Instructions . . . . . . . . . . . . . . . . . . . . . 2-1

Performance Tests . . . . . . . . . . . . . . . . . . . . . . . 2-1

Transceiver Programming . . . . . . . . . . . . . . . . . 2-2

Required Power Source . . . . . . . . . . . . . . . . . . . 2-2

2.2 MOUNTING THE TRANSCEIVER . . . . . . . . .2-2

Selecting A Mounting Location . . . . . . . . . . . . . 2-2

Installation Components. . . . . . . . . . . . . . . . . . . 2-2

Attaching Mounting Bracket . . . . . . . . . . . . . . . 2-2

2.3 POWER CABLE INSTALLATION . . . . . . . . .2-3

2.4 ACCESSORY CABLE INSTALLATION . . . .2-4

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Accessory Pigtail Installation. . . . . . . . . . . . . . . 2-5

Connecting Ignition Sense Wire. . . . . . . . . . . . . 2-5

Connecting Horn Alert Wire . . . . . . . . . . . . . . . 2-6

Other Accessory Cable Outputs . . . . . . . . . . . . . 2-6

2.5 REMOTE CONTROL UNIT INSTALLATION2-6

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Mounting Remote Control Unit . . . . . . . . . . . . . 2-6

2.6 USING AN EXTERNAL SPEAKER . . . . . . . .2-7

2.7 DATA CABLE INSTALLATION . . . . . . . . . . .2-7

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Data Cable Installation . . . . . . . . . . . . . . . . . . . . 2-8

2.8 KEY CAP KITS . . . . . . . . . . . . . . . . . . . . . . . . .2-8

Multi-Net and LTR-Net Models. . . . . . . . . . . . . 2-8

SMARTNET/SmartZone Models. . . . . . . . . . . . 2-9

3 CIRCUIT DESCRIPTION

3.1 GENERAL TRANSCEIVER DESCRIPTION 3-1

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Circuit Protection (Fuses) . . . . . . . . . . . . . . . . . . 3-1

Synthesizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Audio/Logic Board . . . . . . . . . . . . . . . . . . . . . . . 3-1

Receiver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

3.2 POWER DISTRIBUTION AND SWITCHING 3-2

Power Switching Control . . . . . . . . . . . . . . . . . . 3-2

Supply Switching . . . . . . . . . . . . . . . . . . . . . . . . 3-2

3.3 AUDIO/LOGIC BOARD DIGITAL CIRCUIT 3-4

Microcontroller (U101). . . . . . . . . . . . . . . . . . . . 3-4

Memory and Latch Programming. . . . . . . . . . . . 3-6

3.4 RECEIVE AUDIO/DATA PROCESSING . . . 3-7

Amplifier (U301B) . . . . . . . . . . . . . . . . . . . . . . . 3-7

Receive Audio Processing. . . . . . . . . . . . . . . . . . 3-7

Receive Data Processing. . . . . . . . . . . . . . . . . . . 3-8

Squelch Circuit (U304A, U304B). . . . . . . . . . . . 3-9

3.5 TRANSMIT AUDIO/DATA PROCESSING . 3-9

Microphone Amplifier (U303B),

High-Pass Filter (U303C) . . . . . . . . . . . . . . . . 3-9

Summing Amplifier (U303D), Pre-Emphasis/

Limiter (U303A). . . . . . . . . . . . . . . . . . . . . . 3-10

Splatter Filter (U302B, U302C) . . . . . . . . . . . . 3-10

Transmit Data Circuit (U302D, U302A). . . . . . 3-10

3.6 DISPLAY BOARD . . . . . . . . . . . . . . . . . . . . . 3-10

3.7 SYNTHESIZER CIRCUIT DESCRIPTION (UHF MODELS)

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

Voltage-Controlled Oscillator. . . . . . . . . . . . . . 3-11

Active Filter (Q800), Buffer Amplifier (Q801) 3-12

VCO and TCXO Modulation . . . . . . . . . . . . . . 3-14

Synthesizer Integrated Circuit (U804) . . . . . . . 3-14

Lock Detect . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Charge Pump. . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Shift Register (U800, U801) and Digital

Potentiometer (U802) Programming. . . . . . . 3-15

3.8 RECEIVER CIRCUIT DESCRIPTION (UHF MODELS)

Front End Filter. . . . . . . . . . . . . . . . . . . . . . . . . 3-16

RF Amplifier (Q201). . . . . . . . . . . . . . . . . . . . . 3-17

First Mixer (Q202), Injection Amplifier (Q204) 3-17

Second Mixer/Detector (U201). . . . . . . . . . . . . 3-17

3.9 TRANSMITTER CIRCUIT DESCRIPTION (UHF MODELS)

First and Second Amplifiers . . . . . . . . . . . . . . . 3-19

Third Amp and Predriver . . . . . . . . . . . . . . . . . 3-19

Driver (Q600), Final (Q601). . . . . . . . . . . . . . . 3-20

Antenna Switch . . . . . . . . . . . . . . . . . . . . . . . . . 3-20

Directional Coupler, Low-Pass Filter . . . . . . . . 3-21

Power Control (U500A/B, Q500-Q503). . . . . . 3-21

. . . . . . . . . . . . . . . . . . . . . . 3-11

. . . . . . . . . . . . . . . . . . . . . . 3-16

. . . . . . . . . . . . . . . . . . . . . . 3-19

February 2001

Part No. 001-9800-001

TABLE OF CONTENTS (CONT’D)

TABLE OF CONTENTS

3.10 SYNTHESIZER CIRCUIT DESCRIPTION (800/900 MHz MODELS)

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

Voltage-Controlled Oscillator . . . . . . . . . . . . . 3-22

VCO and TCXO Modulation . . . . . . . . . . . . . . 3-24

Active Filter (Q800) . . . . . . . . . . . . . . . . . . . . . 3-25

Buffer Amplifier (Q801), Tx/Tx Switch

(CR801/CR802) . . . . . . . . . . . . . . . . . . . . . . 3-25

Synthesizer Integrated Circuit (U804) . . . . . . . 3-26

Lock Detect . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27

Charge Pump . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27

Shift Register (U800, U801) and Digital

Potentiometer (U802) Programming . . . . . . 3-27

3.11 RECEIVER CIRCUIT DESCRIPTION (800/900 MHz MODELS)

Front End Filter . . . . . . . . . . . . . . . . . . . . . . . . 3-27

RF Amplifier (Q201) . . . . . . . . . . . . . . . . . . . . 3-27

First Mixer (Q202), Crystal Filter (Z204) . . . . 3-28

Second Mixer/Detector (U201) . . . . . . . . . . . . 3-28

3.12 TRANSMITTER CIRCUIT DESCRIPTION (800/900 MHz MODELS)

Predriver (Q506), Driver (Q507) . . . . . . . . . . . 3-29

Power Amplifier Module (U600), Final (Q651) 3-30

Antenna Switch . . . . . . . . . . . . . . . . . . . . . . . . 3-30

Directional Coupler, Low-Pass Filter. . . . . . . . 3-30

Power Control (U500A/B, Q500-Q503) . . . . . 3-31

. . . . . . . . . . . . . . .3-22

. . . . . . . . . . . . . . .3-27

. . . . . . . . . . . . . . .3-29

4 SERVICING

4.1 GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

Periodic Checks . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Schematic Diagrams and Component Layouts. . 4-1

Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . 4-1

Configuring Transceiver for Testing . . . . . . . . . 4-1

4.2 SURFACE MOUNTED DEVICES (SMDs) . .4-1

Servicing Techniques . . . . . . . . . . . . . . . . . . . . . 4-1

Identifying SMD Resistors. . . . . . . . . . . . . . . . . 4-1

SMD Capacitor Identification . . . . . . . . . . . . . . 4-2

SMD Inductor Identification . . . . . . . . . . . . . . . 4-3

Transistor/Diode Identification . . . . . . . . . . . . . 4-3

4.3 SYNTHESIZER TROUBLESHOOTING . . . .4-3

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Reference Oscillator (U806). . . . . . . . . . . . . . . . 4-4

VCO Module . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Synthesizer IC (U804) . . . . . . . . . . . . . . . . . . . . 4-4

Determining Synthesizer Counter Divide

Numbers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

4.4 RECEIVER SERVICING. . . . . . . . . . . . . . . . . .4-5

4.5 TRANSMITTER SERVICING . . . . . . . . . . . . .4-5

4.6 AUDIO/LOGIC BOARD SERVICING. . . . . . .4-5

Digital Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Analog Circuits. . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

5 PARTS LIST

Front Panel Assembly and Mechanical Parts . . . 5-1

UHF RF and PA Boards . . . . . . . . . . . . . . . . . . . 5-3

800/900 MHz RF and PA Boards . . . . . . . . . . . 5-18

Audio/Logic Board . . . . . . . . . . . . . . . . . . . . . . 5-25

9800-Series Radio Mounting Kit . . . . . . . . . . . 5-30

9800-Series Remote Mounting Kit . . . . . . . . . . 5-30

DC Power Cable and Hardware Kit . . . . . . . . . 5-30

Accessory Wire Kit. . . . . . . . . . . . . . . . . . . . . . 5-30

Amplified Dynamic Microphone . . . . . . . . . . . 5-30

15 Watt, 4.7-Ohm Speaker (Black). . . . . . . . . . 5-30

Exploded Views

Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31

Front and Top . . . . . . . . . . . . . . . . . . . . . . . . 5-32

Bottom. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-32

Remote Control Unit . . . . . . . . . . . . . . . . . . . 5-33

Remote Transceiver . . . . . . . . . . . . . . . . . . . 5-33

6 SCHEMATIC DIAGRAMS AND

COMPONENT LAYOUTS

Amplified Dynamic Microphone . . . . . . . . . . . . 6-2

Transceiver Top Photo . . . . . . . . . . . . . . . . . . . . 6-3

Transceiver Bottom Photo. . . . . . . . . . . . . . . . . . 6-3

Interconnect Schematic. . . . . . . . . . . . . . . . . . . 6-4

Interface Board Layout. . . . . . . . . . . . . . . . . . . 6-4

Display Board

Top View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

Bottom View. . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

RPI (P.N. 023-9800-000)

Board Layout. . . . . . . . . . . . . . . . . . . . . . . . . . 6-6

Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6

Programming Cable (P.N. 597-2002-200) . . . 6-6

Component Locator Guides

UHF RF Board . . . . . . . . . . . . . . . . . . . . . . . . 6-7

800/900 MHz RF Board . . . . . . . . . . . . . . . . 6-10

Audio/Logic Board . . . . . . . . . . . . . . . . . . . . 6-12

430-470 MHz RF

RF Board Schematic (Revised Board. . . . . . 6-15

PA Board Schematic (25W) . . . . . . . . . . . . . 6-15

RF Board Layout (Revised Board). . . . . . . . 6-16

VCO Board Layout. . . . . . . . . . . . . . . . . . . . 6-17

PA Board Layout (25W). . . . . . . . . . . . . . . . 6-17

PA Board Schematic (40W) . . . . . . . . . . . . . 6-18

PA Board Layout (40W). . . . . . . . . . . . . . . . 6-19

RF Board Schematic (Unrevised Board) . . . 6-20

RF Board Layout (Unrevised Board) . . . . . . 6-21

February 2001

iii

Part No. 001-9800-001

TABLE OF CONTENTS (CONT’D)

TABLE OF CONTENTS

470-512 MHz RF

RF Board Schematic. . . . . . . . . . . . . . . . . . . 6-22

PA Board Schematic (25W). . . . . . . . . . . . . 6-23

VCO Board Layout . . . . . . . . . . . . . . . . . . . 6-24

PA Board Layout (25W) . . . . . . . . . . . . . . . 6-24

PA Board Schematic (40W). . . . . . . . . . . . . 6-25

PA Board Layout (40W) . . . . . . . . . . . . . . . 6-26

800/900 MHz RF

RF Board Schematic (800/900 MHz). . . . . . 6-27

PA Board Schematic (15W). . . . . . . . . . . . . 6-27

RF Board Layout (800 MHz). . . . . . . . . . . . 6-28

RF Board Layout (900 MHz). . . . . . . . . . . . 6-29

VCO Board Layout . . . . . . . . . . . . . . . . . . . 6-30

PA Board Layout (15W) . . . . . . . . . . . . . . . 6-30

PA Board Schematic (30W). . . . . . . . . . . . . 6-31

PA Board Layout (30W) . . . . . . . . . . . . . . . 6-32

800/900 MHz Audio/Logic Board

Schematic. . . . . . . . . . . . . . . . . . . . . . . . . . . .6 -33

Board Layout . . . . . . . . . . . . . . . . . . . . . . . . 6-34

LIST OF TABLES

1-1 Part Number Breakdown . . . . . . . . . . . . . . . . . . 1-2

1-2 Identification Number Breakdown . . . . . . . . . . . 1-3

1-3 98xx Accessories . . . . . . . . . . . . . . . . . . . . . . . . 1-3

2-1 Data Cable Wire Chart . . . . . . . . . . . . . . . . . . . . 2-8

4-1 Ceramic SMD Capacitor Identification . . . . . . . 4-2

4-2 SMD Inductor Identification . . . . . . . . . . . . . . . 4-3

LIST OF FIGURES

2-1 Front Mount Installation Components . . . . . . . 2-1

2-2 Remote Mount Installation Components. . . . . . 2-3

2-3 Accessory Cable Installation. . . . . . . . . . . . . . . 2-4

2-4 Accessory Cable Connector . . . . . . . . . . . . . . . 2-5

2-5 R170 Location Diagram . . . . . . . . . . . . . . . . . . 2-5

2-6 Data Cable Installation (-001 Cable Shown). . . 2-7

3-1 Power Distribution and Switching . . . . . . . . . . 3-3

3-2 Power On-Off Control Circuit. . . . . . . . . . . . . . 3-3

3-3 Audio/Data Processing Circuitry Block Diagram 3-8

3-4 RF Block Diagram (UHF Models) . . . . . . . . . 3-13

3-5 Synthesizer Chip U804 Block Diagram . . . . . 3-16

3-6 Limiter/Detector U201 Block Diagram. . . . . . 3-18

3-7 RF Block Diagram (800/900 MHz Models) . . 3-23

4-1 Simplified Synthesizer Block Diagram. . . . . . . 4-3

February 2001

Part No. 001-9800-001

SECTION 1 GENERAL INFORMATION

GENERAL INFORMATION

1.1 SCOPE OF MANUAL

1.1.1 GENERAL

This service manual contains installation and service information for all current 9800 series mobile transceivers. These include the UHF 984x, 800 MHz 988x, and 900 MHz 989x models.

This manual does not include operation, programming, or alignment information. This information is covered by a separate operation/programming manual (addendum) for each operating protocol as follows:

Protocol Operation and Programming

Manual

98xx Multi-Net 98xx LTR-Net 98xx SMARTNET

SmartZone

Therefore, use this manu al to install and service 98xx transceivers, and use the above manual for operation, programming, and tuning information.

001-9880-400

™

001-9800-600/-601

™

/ 001-9800-501

The data version of the 98xx transceiver has a front panel that is blank except for the programming jack. For servicing information on data models, refer to the LTR manual just described.

The Multi-Net versio n of the 98xx tran sceiver has a data interface that supports external data equipment. For information on this interface and the serial control protocol it uses, refer to th e Multi-Net manual described in the preceding section.

NOTE: External data equipment is currently not supported by the LT R-Net and SMARTNET/SmartZo ne versions of this transceiver.

1.2 TRANSCEIVER DESCRIPTION

1.2.1 GENERAL

The 98xx-series transceivers combine the latest two-way radio features and technology into a rugged and dependable package for the business, industrial, and public safety markets. These transceivers are digitally synthesized, microcomputer-controlled, and field programmable.

NOTE: The above Multi-Net manual also includes 98xx servicing information but has not been updated with the latest changes that are in this manual.

1.1.2 LTR®, LOW TIER, AND DATA MODELS

NOTE: LTR, low tier, and data versions of the 98xx transceiver are no longer available.

The LTR versions of the 98xx are covered by LTR 98xx Service Manual, Part No. 001-9800-200. This is a complete LTR manual that includes LTR operation and programming information and 98xx hardware servicing information. There are also -201 and -202 revisions tha t sh oul d acc ompany thi s manual.

The LTR models of the 98xx mobile were available in both high and low tier versions, and the MultiNet, LTR-Net, and SMARTNET/SmartZone models are available in only the high tier version. Therefore, only high tier models are covered by this manual. For servicing information on low tier models, refer to the LTR manual described in the preceding paragraph.

1.2.2 AVAILABLE FREQUENCY BANDS

UHF Models

• 430-470 MHz or 470-512 MHz models available.

• All currently available models are dual bandwidth

(12.5/25 kHz). Theref ore , they can be programmed to operate on both types of channels.

• High power (40W) or medi um power (25W) models

available.

800 MHz Models

• Full band (806-824 MHz) operation.

• All currently available models are dual bandwidth

(12.5/25 kHz).

• High power (30W) and medium power (15W)

models available.

1-1

February 2001

Part No. 001-9800-001

GENERAL INFORMATION

900 MHz Models

• Full band (896-902 MHz) operation.

• Only narrow band (12.5 kHz) models are available

because the 900 MHz band has always had a 12.5 kHz channel spacing.

• High power (30W) and medium power (15W)

models available.

1.2.3 FRONT AND REMOTE MOUNTING

High tier models are available in both front- and remote-mount versions, and low tier models were available in a fr ont mou nt version onl y. Remote mount versions are intended to be mounted in a remote location up to appr oximat ely 17 feet away from t he co ntr ol unit such as the vehicle’s trunk. Front mount versions are intended to be mounted within reach of the operator.

The control unit connects to the remote pigtail cable coming from the back panel of the transceiver. This cable is standard with remote mount models and optional with front mount models. The remote control unit uses the high tier front panel assembly. A Remote Conversion Kit is available for converting a front mount high tier model to remote mounting (see Table 1-3). The transceiver does not have dual-control capability. Therefore, either the front pa nel or a remote control unit can be used for control, but not both.

1.2.4 NPSPAC MODELS (800 MHZ ONLY)

All 800 MHz 988x transceivers capable of operating on 25 kHz channels meet the stricter specifications established by NPSPAC (National Public Safety Panel Advisory Committee) for public safety frequencies from 821-824 and 866-869 MHz. Since deviation is less on NPSPAC channels, an additional screen is may be displayed by the tuning software with 800 MHz models for setting NPSPAC deviation. Then when a public safety channel is selected, the deviation automatically changes to the level set in this scree n.

1.2.5 PROGRAMMING

Transceiver programming is performed using a PC-compatible computer, the E.F. Johnson Remote Programming Interface (RPI), and E.F. Johnson

programming software. Programming is described in separate manuals as described in Section 1.1.1.

1.2.6 TRANSCEIVER ALIGNMENT

Alignment is performed using the standard Personality programming setup and special Radio Tune software. There are only two or three adjustments that are made by physically adjusting a component on the PC board. All other adjustments are set digitally. The desired setting is selected using the computer, and it is then automatically stored in the transceiver memory. If the manual adjustments do not need to be readjusted, transceiver alignment can usually be performed without removing the covers. Alignment is described in separate manuals as described in Section 1.1.1.

1.3 PART NUMBER BREAKDOWN

The breakdown of the part number used to identify th is transceiver is shown in Table 1-1. With LTR-Net and Multi-Net models, digits 4-7 of this number are displayed briefly at power up.

Table 1-1 Part Number Breakdown

242 - 9 8 x x -x x x x

Band

1 = VHF* 4 = UHF 8 = 800 MHz 9 = 900 MHz

Type

1 = Low tier, dual BW 2 = Mid tier, dual BW* 3 = High tier, dual BW 4 = Low tier, 12.5 kHz 5 = Mid tier, 12.5 kHz* 6 = High tier, 12.5 kHz 8 = High tier rem, dual BW 0 = High tier rem, 12.5 kHz

Signaling

2 = LTR 3 = SMARTNET 4 = Multi-Net 5 = Smartzone 6 = LTR-Net 8 = Data LTR 9 = Data M-Net 0 = Conv only*

* These configurations are currently not available

B/N = Comp/Data C/O = Compander D/P = Data Cable E/Q = Enc/Comp F/T = Enc/C o mp/Dat G/U = Comp/Acsry H/V = Horn/Acsry I/W = Enc/Comp/

Acsry Cable

[1] N-W models are LTR-Net upgradeable

Config.

2 =Mid Pwr std 3 = High Pwr std 7 = M.P. no acc 8 = H.P. no acc

Freq Range

0 = Full band (800/

900 MHz) 3 = 430-470 MHz 5 = 470-512 MHz

Options [1]

1-2

February 2001

Part No. 001-9800-001

GENERAL INFORMATION

1.4 TRANSCEIVER IDENTIFICATION

The transceiver identification number is printed on a label that is attached to the chassis. The information is contained in this number is shown i n Table 1-2. This number is stored electronically and can be read using the programming software.

Table 1-2 Identification Number Breakdown

Model Revision

Letter

98xx x A 10 0 A 12345

Type

1 = Low pwr LTR 2 = High pwr LTR 3 = High pwr Data MN 4 = Low pwr LTR-Net 5 = High pwr LTR-Net 6 = Low pwr Multi-Net 7 = High pwr Multi-Net 8 = Low pwr Da ta LTR 9 = High pwr Data LTR 0 = Low pwr Da ta MNet A =

SMARTNET/ Sm ar tZon e

Manufacture

Date

NOTE: Low power = 25W UHF, 15W 800/900 MHz; High power = 40W UHF, 30W 800/900 MHz)

PlantFrom P.N.

Last Digit of Year

Week No. of Year

Warranty

Number

A = Waseca

1.5 ACCESSORIES

The accessories available for this transceiver are listed in Table 1-3. The following is a brief description of most of these accessories.

Mounting Accessories - The -030 mounting kit contains mounting knobs an d four s elf-dri lling screws. The -610 kit contains mounting knobs, a remote mounting bracket, and four self drilling screws. The 10- and 22-ft. cable kits include a fused power cable and microphone hanger with a ground wire

Table 1-3 98xx Accessories

Accessory Part No.

Mounting Accessories

Front mounting kit Remote mounting kit 10 ft. DC power cable and hardware kit 22-ft. DC power cable and hardware 023-9800-422 Standard mounting bracket 017-2229-005 Low-profile mounting bracket 017-2229-010

023-9800-030 023-9800-040 023-9800-410

Table 1-3 98xx Accessories (Continued)

Accessory Part No.

Standard Key Cap Kits (5 key caps)

Multi-Net 587-9840-001 LTR-Net 587-9840-002 SMARTNET/SmartZone 587-9840-003

Optional Key Cap Kits (20+ key caps)

Multi-Net/LTR-Net 587-9840-004 SMARTNET/SmartZone 587-9840-105

Microphones

Standard amplified dynamic 250-0740-300 Standard DTMF w/lighted keypad 250-0751-021 WR 805 DTMF (weather resistant) 589-0016-029 Desk-type 250-0742-010

Remote Speaker, 5”, 15W, 4.7 ohm 250-0151-010

Remote conversion kit Remote control extension cable, 11 ft. 597-9800-009

Remote control pigtail cable (for xcvr) 597-9800-011 Accessory cable components

Accessory pigtail cable 597-9800-003 Accessory wire kit 023-9750-011

Data/accessory cable kit (both cables included, w/o data connector)

Data pigtail cable (data cable only w/o data connector)

Compander kit 250-9800-310 Encryption kit, Transcrypt Desktop Power Supply

15 A, 117 VAC 239-0226-113 15 A, 230 VAC 239-0226-213

Wedge mounting pedestal ki t (includes 10 ft. power cable)

Programming Accessories

Remote Programming Interface (RPI) 023-9800-000 Cable, RPI to transceiver 597-2002-200 Cable, RPI to computer, 6 ft.

(DB9F to DB9M) Programming software (see manual

listed in Section 1.1.1)

SC20-4xx SC20-4xx

250-9800-001

597-9800-001

597-9800-005

023-8610-914

597-5900-002

Key Cap Kit - A key cap kit which in cludes five caps labeled for common functions is standard with each transceiver. Optional kits are also available. Refer to Section 2.8 for more key cap information.

1-3

February 2001

Part No. 001-9800-001

GENERAL INFORMATION

Microphones and Speaker - The microphones have an impedance of 620 ohms, and all DTMF models have backlighted keypad but no memory for storing numbers. The WR805 microphone is environmentally sealed against such things as rain, sand, and dust. The desk microphone has a monitor button that can be locked down if desired.

The remote 15-watt speaker can be used instead

of the internal sp eak er. It is non-amplified and weather resistant, and has a 6-ft. cable. It plugs into the external speaker jack in the back panel (with both front and remote mount applications), and the internal speaker is a utomaticall y disabled w hen it is used.

Remote Mounting Components - The remote conversion kit converts the front panel of a front mount high tier transceiver to a remote control unit. It includes a blank front cover for the transceiver, a housing and 5-ft. control cable for the front panel, and a 1-ft. pigtail cable for connecting the control unit to the transceiver. If the control unit is to be mounted more than approximately 6 feet from the transceiver, the 11-ft. extension cable is required (see Figure 2-2).

Accessory Cable - The -003 pigtail cable installs in the transceiver, and the wire kit is used to connect accessories to this cable. Included in the wire kit are two 22-ft. and three 2-ft. wire assemblies that can be used as desired. The accessory cable is required if such things as ignition switch control of power or the horn alert are use d. Refer to Section 2.4 for installation information.

Data/Accessory Cable - The -001 cable assembly includes a data pigt ail c able t hat pl ugs int o J301 o n th e audio/logic board and also the accessory pigtail described above. The -005 cable assembly is a data cable only without the accessory cable. Neither cable includes the connector that interfaces with the data equipment, so it must be user supplied and installed. Installation of this cable is described in Section 2.7.

Compandor and Encryption Kits - The compandor kit includes a board assembl y that insta lls in the opt ion wire-outs on the audio/logic board to provide companding. Likewise, the encryption kit includes a board assembly that connects to the other option wireouts on the audio/logic board. Contact your sales representative for more information on available encryption options.

Desktop Accessories - The -113 and -213 power supplies include a pedestal for mounting the transceiver and also inclu de an inte rnal sp eaker. The wedge mounting pedestal includes a 10-ft power cable. Also required when this pedesta l is used is one of the power supplies and the -010 low profile mounting bracket.

Programming Accessories - This RPI has design enhancements required for Flash programming the 9800-series transc eiver s. It also h as jacks for i nject ing a microphone audio signal and monitoring receive audio when aligning the transceiver. Earlier RPIs (such as 023-9750-000 an d 023-5810-000) ca n be used to program personality information if desired.

1.6 PRODUCT WARRANTY

The warranty statement for this transceiver is available from your product supplier or from the Warranty Department, E.F. Johnson Company, 299 Johnson Avenue, P.O. Box 1249, Waseca, MN 56093-

0514. This information may also be re quested from the Warranty Department by phone as described in Section 1.7. The Warranty Department may also be contacted for Warranty Service Reports, claim forms, or any other questions concerning warranties or warranty service.

1.7 FACTORY CUSTOMER SERVI CE

The Customer Service Department of the E.F. Johnson Company provides customer assistance on technical problems and the availability of local and factory repair facilities. Regular Customer Service hours are 7:30 a.m. - 5:30 p.m. Central Time, Monday - Friday. The Customer Service Department can be reached at the following telephone numbers:

Toll-Free: 1-800-328-3911

(From within continental United States only)

International: (507) 835-6911 FAX: (507) 835-6969 E-Mail: First Initial/Last Name@efjohnson.com

(You need to know the name of the person you

want to reach. Example: jsmith@efjohnson.com)

NOTE: Emergency 24-hour technical support is also available at the 800 and preceding numbers during off hours, holidays, and weekends.

1-4

February 2001

Part No. 001-9800-001

GENERAL INFORMATION

When your call is answered, you will hear a brief message informing you of number s that can be ente red to reach various departments. This number may be entered during or after the message using a tone-type telephone. When you enter some numbers, another number is requested to further categorize the type of information you need.

You may also contact the Customer Service Department by mail. Please include all information that may be helpful in solving your problem. The mailing address is as follows:

E.F. Johnson Company

Customer Service Dep artment

299 Johnson Avenue

P.O. Box 1249

Waseca, MN 56093-0514

1.8 FACTORY RETURNS

Repair service is normal ly availa ble through local authorized EFJohnson Land Mobile Radio Service Centers. If local service is not ava ilable, the equipmen t can be returned to the fac tory for repair. However, it is recommended that you contact the Customer Service Department before returning equi pment. A service representative may be able to suggest a solution to the problem making return of the equipment unnecessary.

Be sure to fill out a Factor y Re pai r Req ues t For m #271 for each unit to be repaired, whether it is in or out of warranty. These forms are available free of charge by calling Customer Service (see Section 1.7) or by requesting them when you send a unit in for repair. Clearly describe the difficulty experienced in the space provided and also note any prior physical damage to the equipment. Include this form in the shipping container with each unit. Your telephone number and contact name are important as there are times when the technicians may have specific questions that need to be answered in order to completely identify and repair a problem.

When returning equipment for repair, it is also a good idea to use a PO number or some other reference

number on your paperwork in case you need to call the repair lab about your unit. These numbers are referenced on the repai r or de r maki ng it easier and fas te r t o locate your unit in the lab.

Return Authorization (RA) numbers are not necessary unless you have been gi ven one by the Fie ld Service Department. RA numbers are required for exchange units or if the Field Service Department wants to be aware of a specific problem. If you have been given an RA number, reference this number on the Factory Repair Request Form sent with the unit. The repair lab will then contact the Field Service Department when the unit arrives.

1.9 REPLACEMENT PARTS

EFJohnson replacement parts can be ordered directly from the Service Parts Department. To order parts by phone, dial the toll-free number as described in Section 1.7. When ordering, please supply the part number and quantity of each part ordered. EFJohnson dealers also nee d to g ive th eir a cco unt numbe r. If there is uncertainty about the part number, include the designator (C512, for example) and the model number of the equipment the part is from.

You may also send your order by mail or FAX. The mailing address i s as follows and the FAX number is shown in Section 1.7.

E.F. Johnson Company

Service Parts Department

299 Johnson Avenue

P.O. Box 1249

Waseca, MN 56093-0514

1.10 INTERNET HOME PAGE

The E.F. Johnson Company has a site on the World Wide Web that can be accessed for inform ation on the company about such things as products, systems, and regulations. The address is http://www.efjohnson.com.

1-5

February 2001

Part No. 001-9800-001

GENERAL INFORMATION

UHF 984x SPECIFICATIONS

The following are general specifications intended for use in testing and servicing this transceiver. For current advertised specifications, refer to the specification sheet available from your sales representative. Specifications are subject to change without notice.

GENERAL

Frequency Range 430-470 MHz and 470-512 MHz Operating Modes LTR (trunked) and Conventional (non-trunked) Systems and Groups Selectable Low Tier: Up to 16 system/group combinations

High Tier: Variable from 100 1-group systems up to 40 16-group systems Mounting Location Dash (low tier), Dash or Remote (high tier) Transmit/Receive Separation Any frequency within the range Channel Spacing 12.5 kHz (2.5 kHz maximum deviation)

25 kHz (5 kHz maximum deviation)

(12.5 kHz or dual bandwidth models available) Frequency Stability 2.0 PPM from –22° to +140° F (–30° to +60° C) Dimensions 2.1” x 6.0” x 7.5” (HxWxD) Weight 3.5 lbs (1.59 kg) Power Requirement 13.6 volts DC nominal, negative ground Current Drain 300 mA maximum (receive standby)

1.5 A maximum (receive, rated audio output)

10.0 A maximum (transmit, 25 W output)

15.0 A maximum (transmit, 40 W output)

FCC Compliance Parts 15 and 90

RECEIVER

Sensitivity (12 dB SINAD) 0.35 µV Selectivity –70 dB at 25 kHz, –60 dB at 12.5 kHz Spurious and Image Rejection –70 dB Intermodulation –70 dB Hum and Noise –45 dB at 25 kHz, –40 dB at 12.5 kHz Maximum Frequency Spread Any spread within the range Audio Power Output 5 watts (external 4.7-ohm speaker), 3 watts (internal 8-ohm speaker) Audio Distortion Less than 5% at 1 kHz with 60% deviation Audio Response +1, –3 dB per octave de-emphasis per standard TIA RF Input Impedance 50 ohms

TRANSMITTER

RF Power Output 25W Version - 25 watts (adjustable to 2-25 watts)

40W Version - 40 watts (adjustable to 10-40 watts) Spurious and Harmonic Emissions –70 dB FM Hum and Noise –40 dB (25 kHz), –35 dB (12.5 kHz) Audio Modulation 25 kHz - 16K0F3E (voice) 16K0F1D (data) Audio Distortion Less than 3% at 1 kHz with 40% modulation Audio Frequency Response 6 dB per octave pre-emphasis per standard TIA Maximum Frequency Spread Any spread within the band RF Output Impedance 50 ohms Duty Cycle 20% standard TIA

1-6

February 2001

Part No. 001-9800-001

GENERAL INFORMATION

800 MHz 988x SPECIFICATIONS

GENERAL

Frequency Range Transmit - 806-824 MHz Std., 851-869 MHz conv. talk-around

Receive - 851-869 MHz Operating Modes LTR (trunked) and Conventional (non-trunked) Systems and Groups Selectable Low Tier: Up to 16 system/group combinations

High Tier: Variable from 100 1-group to approx. 40 16-group systems Mounting Location Dash (low tier), Dash or Remote (high tier) Transmit/Receive Separation 45 MHz standard, 0 MHz conventional talk-around Channel Spacing 12.5 kHz (2.5 kHz maximum deviation)

25 kHz (5 kHz max deviation std, 4 kHz max NPSPAC) Frequency Stability 1.5 PPM from –22° to +140° F (–30° to +60° C) Dimensions 2.1” x 6.0” x 7.5” (HxWxD) Weight 3.5 lbs (1.59 kg) Power Requirement 13.6 volts DC nominal, negative ground Current Drain 300 mA maximum (receive standby)

1.5 A maximum (receive, rated audio output)

7.0 A maximum (transmit, 15 W output)

11.0 A maximum (transmit, 30W output)

FCC Compliance Parts 15 and 90

RECEIVER

Sensitivity (12 dB SINAD) 0.35 µV Selectivity –70 dB at 25 kHz, –60 dB at 12.5 kHz Spurious and Image Rejection –70 dB Intermodulation –70 dB Hum and Noise –40 dB at 25 kHz, –35 dB at 12.5 kHz Maximum Frequency Spread Any spread within the range Audio Power Output 5 watts (external 4.7-ohm speaker), 3 watts (internal 8-ohm speaker) Audio Distortion Less than 5% at 1 kHz with 60% deviation Audio Response +1, –3 dB per octave de-emphasis per standard TIA RF Input Impedance 50 ohms

TRANSMITTER

RF Power Output Medium power version - 15 watts (adjustable to 2-15 watts)

High power version - 30 watts (adjustable to 10-30 watts) Spurious and Harmonic Emissions –70 dB FM Hum and Noise –45 dB (25 kHz), –38 dB (12.5 kHz) Audio Modulation 25 kHz - 16K0F3E (voice) 19K6F1D (data)

NPSPAC - 14K0F3E (voice) 17K6F1D (data) Audio Distortion Less than 5% at 1 kHz with 40% modulation Audio Frequency Response 6 dB per octave pre-emphasis per standard TIA RF Output Impedance 50 ohms Duty Cycle 20% standard TIA

1-7

February 2001

Part No. 001-9800-001

GENERAL INFORMATION

900 MHz 989x SPECIFICATIONS

GENERAL

Frequency Range Transmit - 896-902 MHz Std., 935-941 MHz conv. talk-around

Receive - 935-941 MHz Operating Modes LTR (trunked) and Conventional (non-trunked) Systems and Groups Selectable Low Tier: Up to 16 system/group combinations

Mid Tier: Up to 16 systems with up to 16 groups each

High Tier: Variable from 100 1-group to approx. 40 16-group systems Mounting Location Dash (low tier), Dash or Remote (high tier) Transmit/Receive Separation 39 MHz standard, 0 MHz talk-around Channel Spacing 12.5 kHz Frequency Stability 1.5 PPM from –22° to +140° F (–30° to +60° C) Dimensions 2.1” x 6.0” x 7.5” (HxWxD) Weight 3.5 lbs (1.59 kg) Power Requirement 13.6 volts DC nominal, negative ground Current Drain 300 mA maximum (receive standby)

1.5 A maximum (receive, rated audio output)

7.0 A maximum (transmit, 15 W output)

11.0 A maximum (transmit, 30W output)

FCC Compliance Parts 15 and 90

RECEIVER

Sensitivity (12 dB SINAD) 0.35 µV Selectivit y –65 dB Spurious and Image Rejection –70 dB Intermodulation –70 dB Hum and Noise –38 dB Maximum Frequency Spread Any spread within the range Audio Power Output 5 watts (external 4.7-ohm speaker), 3 watts (internal 8-ohm speaker) Audio Distortion Less than 5% at 1 kHz with 60% deviation Audio Response +1, –3 dB per octave de-emphasis per standard TIA RF Input Impedance 50 ohms

TRANSMITTER

RF Power Output Medium power version - 15 watts (adjustable to 2-15 watts)

High power version - 30 watts (adjustable to 10-30 watts) Spurious and Harmonic Emissions –70 dB FM Hum and Noise –40 dB Audio Modulation 12.5 kHz - 11K0F3E (voice) 11K6F1D (data) Audio Distortion Less than 5% at 1 kHz with 40% modulation Audio Frequency Response 6 dB per octave pre-emphasis per standard TIA Maximum Frequency Spread Any spread within the band RF Output Impedance 50 ohms Duty Cycle 20% standard TIA

1-8

February 2001

Part No. 001-9800-001

SECTION 2 INSTALLATION

INSTALLATION

10 ft

Install

15A Fuse

Optional

Antenna

6 ft

Optional

Speaker

Miniature UHF

Jack

Item

No.

1 Amplified dynamic microphone 250-0740-300 7 Screw, No. 10 self-drilling (4) 575-9077-545 2 Tri-knob (2) 547-0016-008 8 10-ft. DC power cable & hardware 023-9800-410 3 Standard mounting bracket 017-2229-005 9 Accessory pigtail cable (optional) 597-9800-003 4 Microphone hanger 023-3514-001 10 Accessory wire kit (optional) 023-9750-011 5 Screw, 4-24 x 5/16” sheet metal (3) 575-3604-010 11 5”, 4.7 ohm external spkr (optional) 250-0151-010 6 Hanger grounding wire assembly 023-7171-911

Description Part No.

Item

No.

Description Part No.

Figure 2-1 Front Mount Installation Components

2.1 GENERAL

2.1.2 PERFORMANCE TESTS

2.1.1 SCOPE OF INSTRUCTIONS

Although each transceiver is carefully tested and

Since each installation is somewhat unique, the installation instructions which follow are intended only as a general guide to installing this transceiver.

aligned at the factory, it is good practice to verify transceiver performance before it is placed in service. Performance tests are located in Sections 7.5 and 7.6.

2-1

February 2001

Part No. 001-9800-001

INSTALLATION

2.1.3 TRANSCEIVER PROGRAMMING

The transceiver needs to be pro grammed before it is placed in service unless it was ordered as factory programmed. Programming i nst ructions are locate d i n the manuals listed in Section 1.1.1. Transceivers are normally shipped with preprogrammed factory test channels and test parameters.

2.1.4 REQUIRED POWER SOURCE

This transceiver is designed for installation in vehicles which have a nominal 12-volt, negative ground electrical system (negative battery terminal connected directly to the chassis). If the vehicle has some other type of electrical system, a voltage converter is required.

2.2 MOUNTING THE TRANSCEIVER

2.2.1 SELECTING A MOUNTING LOCATION

addition, do not place any other objects in the deployment area.

2.2.2 INSTALLATION COMPONENTS

The following mounting kits are used to install the transceiver. These components and other components are shown in Figure 2-1.

Mounting Kit, Part No. 023-9800-030

• Two tri-knobs for attaching the transceiver to the

mounting bracket

• Four No. 10 self-drilling screws

Universal Cable and Hardware Kit

Part No. 023-9800-410 (10 ft) Part No. 023-9800-422 (22 ft)

• 10 ft or 22 ft fused power cable

• Microphone clip and grou nd wire

• One 7A and one 15A fuse (7A not used)

Front mount transceivers are designed for mounting in a location within convenient reach of the operator such as the dash, console, or floor. Remote mount models are designed for mounting in a remote location such as under a seat or in the trunk that is up to 6 feet (or up to 17 feet with optional extension cable) from the control unit.

WARNING

The mounting location of the transceiver or control unit can affect safe operation of the vehicle. Follow these precautions when mounting this transceiver:

• Mount it where it does not interfere with operation

of the vehicle controls.

• Mount it where the operator can easily see the

display and reach the controls.

• Mount it wher e it will be leas t likely to cau se injury

in case of an accident.

• Airbags deploy with great force. Therefore, do not

mount it anywhere near the deployment area. In

2.2.3 ATTACHING MOUNTING BRACKET

Either Standard Mounting Bracket, Part No. 0172229-005, or Low Profile Mounting Bracket, Part No. 017-2229-010, can be used to mount the transceiver. Proceed as follows:

1. Check the area underneath the selected mounting

surface for such things as wires, electrical components, and brake and gas lines that could be damaged when the mounting bracket screws are installed. Then install the mounting bracket using the included self-tapping screws or other screws if desired.

2. Install the transceiver in the bracket using the

included knobs.

3. With front mount transceivers, install the included

microphone hanger in a convenient location using the included sheet metal screws or others. For proper operation of functions such as the monitor mode and scan, the hanger must be connected to chassis ground. If req uired, ground the hanger using the included ground wire.

2-2

February 2001

Part No. 001-9800-001

INSTALLATION

NEG

6 ft.

POS

10 or 22 ft.

Miniature UHF Jack

Antenna

Description Part No.

Item

No.

5 ft.

11 ft.

Description Part No.

1 ft.

Item

No.

1 Low profile mounting bracket 017-2229-010 9 Hanger ground wire assembly 023-7171-911 2 Screw, No. 10 self-drilling (4) 575-9077-545 10 Amplified dynamic microphone 250-0740-300 3 Tri-knob (2) 547-0016-008 11 Remote control unit --4 Accessory pigtail cable (optional) 597-9800-003 12 Tri-knob (2) 547-0016-008 5 Accessory wire kit (optional) 023-9750-011 13 Mounting bracket, control unit 017-2227-057 6 10-ft. DC power cable & hardware 023-9800-410 14 Screw, No. 10 self-drilling (4) 575-9077-545

22-ft DC power cable & hardware 023-9800-422 15 Flat washer, vulcanized (2) 596-6400-030 7 Microphone hanger 023-3514-001 16 Extension control cable, 11 ft (opt.) 597-9800-009 8 Screw, 4-24 x 5/16” sheet metal (3) 575-3604-010 17 5”, 4.7 ohm external spkr (optional)250-0151-010

Figure 2-2 Remote Mount Installation Components

2.3 POWER CABLE INSTALLATION

It is recommended that both wires of the power cable be connected directly to the vehicle battery. Connection of either wire to ot her point s may resul t in increased interference from the vehicle’s electrical system. If noise is still a problem with both wires connected to the battery, a noise filter should be used.

NOTE: With LTR-Net models, do not connect the power cable to a switched power source such as the ignition switch or a relay. Always use the front panel power switch or the ignition sense input described in Section 2.4.3 to switch power. When power is switch ed externally with LTR-Net models, the de-registration message cannot be sent and the current user settings are not saved.

February 2001

2-3

Part No. 001-9800-001

INSTALLATION

J101

Strain Relief Grommet

Accessory Pigtail Cable

Figure 2-3 Accessory Cable Installation

R170

Proceed as follows to install the power cable:

1. Before beginning power cable installation, remove

the negative cable from the battery to prevent damage from accidental short circuits.

2. Route the red and blue wires of the power cable to

the vehicle battery. Y ou may need t o cut the cabl e if it must be routed through an opening that is not large enough to clear the fuseholder. The -422 kit includes butt splice connectors that can be used to splice the cable back together.

3. Connect the red power cable to the positive (+)

battery terminal. To minimize the chance of a short circuit occurring in an unfused part of the power cable, the fusehol der should be as clos e as possible to the battery terminal.

4. Connect the blue power cable wire to the negative

(–) battery terminal.

5. Both 7- and 15-ampere fuses are included with the

power cable. Install the 15-ampere fuse in this application.

6. Plug the power ca ble int o the tr ansceive r and re connect the negative battery cable.

7. Install the antenna according to the manufacturer’s instructions. This transceiver has a miniature UHF connector. If the antenna has some other type, an adapter is required. Che ck VSWR. Reflected power should be less than 4% of forward power (VSWR less than 1.5 to 1).

2.4 ACCESSORY CABLE INSTALLATION

2.4.1 GENERAL

If transceiver power is to be controlled by the vehicle’s ignition switch, a horn alert installed, or other accessory connector outputs utilized, the optional accessory pigtail cable is i nstalled in the transceiver (see Figure 2-1). Also required is the accessory wire kit which includes two 8-pin connectors which plug into the pigtail cable, two 22-ft and three 2-ft wire assemblies, and a fuseholder assembly. These components are installed as required for each applicatio n. Proceed as follows to install this cable.

2-4

February 2001

Part No. 001-9800-001

INSTALLATION

Pin Function

1 Speaker Out* 2 Sw Bat Out 3NC 4 Horn Alert 5 Ground 6Ign Sense 7Output D 8NC

* This is a low level output (see Section 2.4.5)

Figure 2-4 Accessory Cable Connector

2.4.2 ACCESSORY PIGTAIL INSTALLATION

1. Remove the bottom cover of the transceiver to access the audio/logic board.

2. Plug the pigtail cable from the kit into J101 as shown in Figure 2-3. The plug can be inser te d only one way.

3. Position the strain relief in the external speaker jack slot of the chassis (see Figure 2-3).

4. If installing the ignition sense function, proceed to the next section to remove R170. Otherwis e, reinstall the bottom cover.

2.4.3 CONNECTING IGNITION SENSE WIRE

NOTE: If the ignition sense function is not used, no transceiver modifications are required and this section can be skipped. However, then be sure that the Ignition Sense Delay T ime is se t t o “Forever/Infinite”. If it is not, improper transceiver operation may result when starting the vehicle.

Accessory Cable From Transceiver

Pin 8

Insert Pin With

Tang Up

Pin 1

• The horn alert (LTR-Net/Multi-Net) may be auto-

matically disabled when the ignition switch is on.

• A transceiver power turn-off delay can be

programmed. Standby curr ent (receive mode, audio squelched) is about 1 ampere.

• With LTR-Net models, the de-registration message

is sent and settings saved (see NOTE on page 2-3).

Removing R170

When the ignition sense function is used, resistor R170 on the audio/logic board must be removed. The general location of th is resi stor is shown in Figure 2- 3, and the exact location is shown in Figure 2-5. Carefully remove R170, taking care not to damage board traces or adjacent components.

General

When the ignition sense line is connected, the

following additional functions are provided:

• The transceiver turns on and off with the vehicle

ignition switch (if the front panel power switch is on).

2-5

Figure 2-5 R170 Location Diagram

February 2001

Part No. 001-9800-001

INSTALLATION

Installing Ignition Sense Wire Assembly

The ignition sense input is connected using the

connector with the 22- foot red wi re pre-i nstalled i n pin

6. The white jumper between pins 1 and 3 is not used with this transceiver, so it can be clipped off or left as is. It is used only Summit

or Vik ing® HT/GT transceivers to route a udio to t he inter nal spea ker. The other connector and wire assemblies in the kit can also be used if desired.

The red wire from pin 6 (see Figure 2-4) is connected to a 13.6-volt source that is switched by the vehicle ignition switch. Connect this wire using the included fuseholder and 1-amp fuse. Be sure to install the fuse as close as possi ble to the connection point so that it provides optimum short circuit protection.

2.4.4 CONNECTING HORN ALERT WIRE

NOTE: The horn alert feature is not available with SMARTNET/SmartZone models.

To utilize the horn alert, the horn alert output of the accessory connector is connected and special programming is required. When the horn alert sounds, pin 4 of the accessory connector goes low. The disabled condition is a high impedance state.

Maximum sink current of the horn alert output is 500 mA. Therefore, some type of horn alert driver circuit is usually required. If connecting to a relay, a diode should be connected across the relay coil with the cathode toward the battery side. This protects Q100 on the audio/logic board when the relay deenergizes.

The horn alert output is connected by using one of the 22- or 2-foot wire assemblies included in the Accessory Wire Kit. Insert the pin of the wire assembly into the pin 4 slot of the connector as shown in Figure 2-4. Then connect the other end to the horn alert driver.

For this output to operate properly, the audio amplifier requires an 8-ohm load. Therefore, if not using the internal speaker and no speaker is connected to the external speaker jack, connect an 8-ohm, 5-watt resistor to the external speaker jack.

Sw Bat Out (pin 2) - This output can provide a switched battery output current of up to 1.5 A (including the current supplied to the microphone connector). This cur ren t i s limited by fuse F100 on the audio/logic board. CAUTION: Do not chan ge this fuse

to one with a higher current rating because PC board damage may result.

Horn Alert (pin 4) - See Section 2.4.4.

Ignition Sense (pin 6) - See Section 2.4.3.

Output D (pin 7) - This output is available with LTR-

Net/Multi-Net models only. It is controlled by the menu OPTION parameter or by an option switch programmed for that functi on. It can al so be contro lled by several I/O functions (see Appendix B).

2.5 REMOTE CONTROL UNIT INSTALLATION

2.5.1 GENERAL

NOTE: Install the remote mount transceiver, power cable, and accessory cable as described in Sections

2.2, 2.3, and 2.4, respectively.

No special control uni t pro gra mming o r PC boar d modifications are required prior to installing the remote control unit. An d iagram showing a remote installation is located in Figure 2-2. As indicated in this diagram, the control unit has a 5-ft pigtail cable and the transceiver has a 1-ft pigtail cable. These cables can be directly connected if the control unit is mounted within approximately 6-ft of the transceiver. Otherwise, the optional 11-ft extension cable can be used to allow a mounting distance of up to approximately 17 feet.

2.4.5 OTHER ACCESSORY CABLE OUTPUTS

Speaker Output (pin 1) - This is a low-level, volume controlled, speaker output. It provides drive to an external device such as an audio power amplifier. The input impedance of the external device should be greater than 20k ohms.

2.5.2 MOUNTING REMOTE CONTROL UNIT

1. Check the area underneath the selecte d mounti ng

surface for such things as wires, electrical components, and brake and gas lines that could be damaged when the mounting bracket screws are

February 2001

2-6

Part No. 001-9800-001

INSTALLATION

Data Pigtail Cable

Accessory

Pigtail Cable

Strain Relief

Two User-Definable Wires

J701

Figure 2-6 Data Cable Installation (-001 Cable Show n)

installed. Then install the mounting bracket using the included self-tapping screws or other screws if desired.

2. Install the control unit in the bracket using the included knobs and vulcanized washers (the washers are installed between the bracket and control unit).

3. Install the included microphone hanger in a convenient location usi ng the included shee t metal screws or other screws. For proper operation of functions such as the monitor mode and scan , the hanger must be connected to c hass is ground. If requir ed, gr ound the hanger using the included ground wire.

2.6 USING AN EXTERNAL SPEAKER

Power output with the internal 8-ohm speaker in the front panel or remote control unit is approxi mately 3 watts. For up to 5 watts of p ower, a 4.7-ohm exter nal speaker can be used. This speaker is plugged into the external speaker jack on the back of the transceiver. This is a standar d 1/8”, two- conductor p hone jack. Th e

J301

internal speaker is automatically disabled when an external speaker is used.

The impedance of the external speaker must not be less than 4.0 ohms. Using a speaker with an impedance less than 4.0 ohms could result in audio amplifier U306 overheating and does not provide 5 watts of power. Therefore, to allow for tolerances, a speaker with a nominal impedance of 4.7 ohms is recommended. The E.F. Johnson remote speaker listed in Figure 2-1 or Table 1-3 meets this requirement. This speaker has a 6-ft cable, and in some applications (such as remote mounting) an extension cable may be required to connect it to the transceiver.

2.7 DATA CABLE INSTALLATION

CAUTION

DO NOT apply power a transceiver that has one of the data cables ins talled wi thout fir st pr op erly te rminating the wires of that cable. These wires carry differing potentials and transceiver damage may result if they inadvertently contact each other.

2-7

February 2001

Part No. 001-9800-001

INSTALLATION

2.7.1 GENERAL

The optional data pigtail cable is supported by Multi-Net versions only. It is installed when a modem or some other type of data de vi ce i s to b e con nec ted to the transceiver. This cable connects the data equipment to data connector J301 on the audio/logic board. Two data cables are available (see Table 1-3), and descriptions of each follow.

Data/Accessory Pigtail Cable, Part No. 597-9800-001

This cable is a combination data and accessory pigtail cable. It does not include a connector for interfacing with

the data equipmen t. The wires are untermi-

nated and connected to a user-supplied connector as desired. The cable has 15 conductors. All 13 pins of J301 are brought out, and there are two additional wires that can be connected inside the transceiver as desired.

Data Pigtail Cable, Part No. 597-9800-005

This is a data cable only (it does not include the accessory cable). The data cable is similar to the one included with the -001 cable. It has 15 unterminated wires, and a user supplied connector is installed as desired.

2.7.2 DATA CABLE INSTALLATION

1. Remove the bottom cover of the transceiver to

access the audio/logic board.

Table 2-1 Data Cable Wire Chart

J301 Pin No. Functi on Wire Color

1 Sw Bat Out White 2 Rx Filt Out Green 3 Tx Filt In Yellow 4 TxD Blue 5 RxD Orange 6TransmitGray 7IN2 Brown 8 Ext Serv Req White/Red

9 Option 1 White/Green 10 Output C White/Black 11 Ext Pwr Sw White/Blue 12 8V Out Red 13 Ground Black

NC User Defined Purple NC User Defined Pink

2.8 KEY CAP KITS

NOTE: To remove a key cap, in ser t a t ool wi th a sharp tip in the slot on the bottom of the cap and carefully pry against the front panel to release the cap.

2.8.1 MULTI-NET AND LTR-NET MODELS

Key Cap Kit, Part No. 587-9840-001, is standard with each Multi-Net transceiver and includes the five caps indicated below.

2. Refer to Figure 2-6 an d plug the 13-pin connector of the data cable into J301. If also installing the accessory cable, plug the 7-pi n connector into J701. Refer to Section 2.4 for more accessory cable installat ion information.

3. Refer to the wiring chart in Table 2-1 and connect the data cable wires to the user supplied connector as required for the data equipment being used.

4. If required, install the purple and pink wires to the desired points in the transceiver.

5. Position the strain relief grommet of the accessory/ data cable in the external speaker jack slot of the chassis as shown in Figure 2-6 and reinstall the bottom cover. bottom cover.

FCN SCAN A/D TA AUX

Key Cap Kit, Part No. 587-9840-002, is standard with each LTR-Net transceiver and includes the five caps indicated by an asterisk (*) in the list which follows.

An optional key cap kit, Part No. 587-9840-004, is also available which includes all of the caps in the following list:

FCN* SCAN* A/D* ROAM* TEL* TA AUX HOME PAGE HORN C/G PRI USR1 USR2 MON CPND MHNG STLH MICPA BANK EMER ENCPT Rx PA CALL (Blank) (Blank)

February 2001

2-8

Part No. 001-9800-001

2.8.2 SMARTNET/SMARTZONE MODELS

Key Cap Kit, Part No. 587-9840-003, is included with each SMARTNET/SmartZone transceiver. This kit includes the five key caps listed below.

EMER F1 F2 F3 SCAN

Key Cap Kit, Part No. 587-9840-105, is also included with each transceiver. This kit includes the key caps shown below.

F1 F2 F3 F4 SCAN BKLHT MSG HORN C/S DISP PRIED SELSQ MON TGSEL PHONE RESP NUIS STATUS TXPWR (Blank) ALERT EMER RWS TONES (Blank)

INSTALLATION

2-9

February 2001

Part No. 001-9800-001

SECTION 3 CIRCUIT DESCRIPTION

CIRCUIT DESCRIPTION

3.1 GENERAL TRANSCEIVER DESCRIPTION

3.1.1 INTRODUCTION

NOTE: A block diagram of the audio and data processing circuitry on the audio/logic board is located in Figure 3-3, and block diagrams of the RF boards are located in Figures 3-4 and 3-7.

The 9800-series transceivers contain the PC board assemblies listed below. Components are mounted on only the top side of all boards. Therefore, most components can be changed without removing the board from the chassis.

Audio/Logic - Control logic and audio processing.

Display - This board contains the LCD display and

controller and interface microcontroller.

Interface - This small board provides the electrical connections between the display and audio/logic boards, and contains the front panel rotary controls and microphone jack.

(F300, 0.6A) limits the c urrent of the 8-vol t supply fe d to modem jack J301. For information on power distribution and switching, refer to Section 3.2.

3.1.3 SYNTHESIZER

The synthesizer output signal is the transmit frequency in the transmit mode and the receive first injection frequency in the receive mode. The synthesizer also pr ovides the r ecei ver s econ d inj ectio n sign al by tripling the TCXO frequency.

Channels are selected by programming the main divider in synthesize r integra ted circuit U804 to divide by a certain number. This programming is provided by microcontroller U101 on the audio/logic board. The minimum frequency resolution is 6.25 or 10 kHz. The frequency stabili ty of the synthesizer i s de termined by the stability of TCXO U806 (Temperature Compensated Crystal Oscillator). The TCXO has a frequency stability of ± 2.0 PPM (UHF) or ± 1.5 PPM (800/900 MHz) from –22° to +140° F (–30 to +60° C).

3.1.4 AUDIO/LOGIC BOARD

RF Board - Receiver, synthesizer, and exciter.

PA Board - Transmitter power amplifier.

General descriptions of the main sections such as the receiver, synthesizer, and exciter follow, and detailed descriptions are located in later sections.

3.1.2 CIRCUIT PROTECTION (FUSES)

Circuit protection is provided by a 15-ampere inline power cable fuse, 4-ampere fuse F500 on the RF board (in the unswitched battery supply line from the PA board), and by voltage regulators which automatically limit current. The 15-ampere power cabl e fuse protects the power amplifier module and final stages on the power amplifier board, and the 4-ampere fuse protects the remainder of the circuitry. In addition, there are two fuses on the audio/logic board. One fuse (F100, 2A) limits the current of the switched battery supply fed to accessory connector J101, the microphone jack, and also the display board. The other fuse

Microcontroller U101 on the audio/logic board provides transceiver control functions including synthesizer programming, system and group scan, data encoding and decoding, squelch, and gating of audio and data signals. The audio /l ogi c boar d als o has analog circuitry which provides filtering, amplification, and other processing of the audio, data, and Call Guard signals.

The U101 operating program is stored in Flash EPROM U108. This type of memory can be reprogrammed in the field using the standard programming setup and special programming software. This allows the operating software to be easily update d without the need to change a microprocessor or EPROM. Flash EPROM memory devices retain data indefinitely without the need for battery backup, and can be reprogrammed many times.

Parameters which change from transceiver to transceiver such as programmed system and groups and option key programming are also stored in the

3-1

February 2001

Part No. 001-9800-001

POWER DISTRIBUTION (ALL MODELS)

CIRCUIT DESCRIPTION

Flash EPROM and also EEPROM U102. This information is programmed when data is downlo aded to the transceiver by the programming software described in Section 4.

A second microcontroller (U2) on the display board controls the front panel display and tri-color indicator and also detects the option switch, Select switch, and microphone on/off hook state. Control information is exchanged between U101 and this microcontroller via a serial bus. The use of a second microcontroller minimizes the number of interconnections that are required between the audio/logic and display boards. The operating program for this microcontroller is permanently stored on the chip and cannot be changed.

3.1.5 RECEIVER

The receiver is a double conversion type with the following intermediate frequencies:

UHF Models - 45 MHz and 450 kHz

800 MHz Models - 52.950 MHz and 450 kHz

900 MHz Models - 45 MHz and 450 kHz

T w o bandp ass f ilt ers i n the f ront end a ttenu ate t he image, half IF, injection, and other f requencies outsid e the selected receive band. Receiver selectivity is enhanced by a four -pol e cryst al fi lter a nd two 450 kHz ceramic filters.

3.1.6 TRANSMITTER

The transmitter amplifies the synthesizer signal to produce a power output of up to either 25 or 40 watts (UHF) or 15 or 30 watts ( 800/90 0 MHz) a t the an tenna jack. Frequency modulation of the transmit signal is performed by modulating the synthesizer TCXO and VCO frequencies. A control circuit senses forward power to maintain constant power output. It also senses final amplifier cur r ent and cuts back power if it becomes excessive.

The use of a digital potentiometer allows the power output to be set from the front panel when the test mode is selected and also allows two different power levels to be programmed for each system. The microcontroller also monitors power amplifier ambient temperature and voltage and cuts back power or disables the transmitter if either are excessive.

3.2 POWER DISTRIBUTION AND SWITCHING

3.2.1 POWER SWITCHING CONTROL

A diagram of the power distribution and switching circuits is shown in Figure 3-1. The main power switching is performed on the RF board by Q510 and other transistors. This switch is controlled by the front panel power switch, the ignition sense input, and the microcontroller as shown in Figure 3-2. For the front panel on-off switch to be detected, Q109 must be turned on by a high signal applied through R170 or from the ignition switch. R170 is installed if the ignition switch is not used to control power. Q107 and Q108 provide power switch on and ignition on signals to the mi crocontroller so t hat it can sense those conditions.

Q110 allows the microcontroller to hold power on for a time after it has been turned off by the power or ignition switch. For example, when the microcontroller senses that power was switched off by the front panel switch, it holds power on for a short time so that switch settings can be saved to memory. It also holds power on when a power-off de la y i s use d. Once power turns off, power is also removed from the microcontroller. Therefore, power can be turned on only by the power and ignition switches.

NOTE: The front panel power switch is a push on, push off type (pressing it toggles between open and closed). It is not a momentary switch.

3.2.2 SUPPLY SWITCHING

When power is turned on by the front panel power switch, the base of Q514 on the RF board is grounded through the power switch. Q514 then turns on which also turns on the Darlington amplifier formed by Q511 and Q512. These transist ors are turned on by a 13.6-volt signal applied through R535. Series-pass transistor Q510 is then turned on and 13 volts appears on its collector. The diodes in CR505 and CR506 become forward biased only if the 8-volt supply applied to the collector of Q514 becomes shorted. This provides current limiting which prevent s damage to the transistors.

Q513 controls the Q511 base current in order to maintain approximately a 0.8-volt drop across the emitter and collector of Q510. This provides noise

3-2

February 2001

Part No. 001-9800-001

POWER DISTRIBUTION (ALL MODELS)

CIRCUIT DESCRIPTION

Power

Cable

Vehicle Battery

Transceiver

Chassis

Ground

Power

Connector

15A

Fuse

Interface Board (High Tier Only)

Front Panel

On-Off Sw

Power On-Off Latch

Low Tier Only

From Ignition

Power Amplifier

Board

CR600

J3 J302

U113A-D

Switch

R533

Switch

Q510

RF Board

Sw Bat

Regulator

U501

8V Tx

Switch

Q504

5.5V

Regulator

U502

Unsw Bat

Transient

Suppressor

J600

1 2

J501

On-Off Sw

Low Tier

F500

Unsw Bat

High Tier

Front Panel

On-Off Sw

On-Off

Latch

(A/L Bd)

From Latch

U112 A/L Bd

From Shift Reg U801

Figure 3-1 Power Distribution and Switching

Audio/Logic Board RF Board

Power Switch

Sense Q107 Q108

J100

To uC, Pin 60

Q109

20 18

Unsw Bat

R170

This Resistor Installed If

Ignition Sense Not Connected

Ignition On

Sense

To uC, Pin 62

Power Hold

From Shift Reg

U111, Q7

Unsw Bat

J201

J302

Sw Bat

8V Tx

5.5V

High

Tier Only

Display Board

Interface

Board

J2 J1 J1

Sw Bat

Supply

Switching

Circuit

Unsw Bat

Q510

J201

Q110

Note: Arrows Indicate Signal Flow.

Audio/Logic

Board

J100

Sw Bat

Microphone

Jack

Vcc

Regulator

U105

F100

Sw Bat

Figure 3-2 Power On-Off Co ntrol Circuit

filtering of the 13.6-volt supply. The emitter of Q513 is biased at about 4.5 volts by R538 and R542 (with a battery voltage of 13.6 volts). CR504 mirrors the baseemitter voltage of Q513, and the voltage across R541 is the same as the voltage across R542 when the voltage applied to R536 is approximately 12.8 volts.

Noise pulses less than 1.6 volt P-P then do not

appear on the output of Q510 because of the emitter

voltage filtering provided by C565. This reduces the amount of noise applied to circuits powered by the switched 13.6-volt supply such as audio power amplifier U306. Additional filtering of the switched and unswitched battery supplies is provided by C548C553. Resistor R534 turns Q514 off when power is turned off.

February 2001

3-3

Part No. 001-9800-001

AUDIO/LOGIC DESCRIPTION (ALL MODELS)

CIRCUIT DESCRIPTION

3.3 AUDIO/LOGIC BOARD DIGITAL CIRCUIT

3.3.1 MICROCONTROLLER (U101)

General

The control logic is based on an MC68HC11F1 eight-bit microcontroller (U101). This device has an internal 1K-byte static RAM and 512-byte EEPROM but no internal ROM or EEPROM. Therefore, all program memory is contained in the external flash memory device (U108). In addition, the microcontroller has several general purpose input and output pins, an eight-channel A/D converter, and synchronous (SPI) and asynchronous (SCI) serial ports. The A/D converter port allows analog signals to be monitored such as the power amplifier temperature, RSSI signal, and vehicle battery voltage.

Separate buses are used for data and memory addressing. The data bus consists of D0-D7, and the address bus consists of A0-A15. The operating speed of the microcontroller is set by crystal Y100. The 9.38 MHz frequency of this cryst al is d ivide d by an in terna l divider to produce a lower internal operating frequency.

T empor ary dat a stor age is provide d by a n inte rnal 1K x 8 RAM in microcontroller U101 and by external 8K x 8 RAM U107. These devices are used as a “scratchpad” during program execution.

Reset

The microcontroller resets when po wer is turned on and also when the 5-volt supply drops below the normal range. Reset clears several internal registers and restarts the operating program. This prevents improper operation which may result during low voltage conditions.

The microcontroller resets itself automatically for 4064 clock cycles when power is applied to the VCC input. Low-voltage reset is triggered by low-voltage sensor U100. When the 5-volt supply drops to approximately 4.25 volts, the RESET output goes low. This resets the microcontroller and also inhibits operation for as long as it is low. The microcontroller also has internal reset circuits w hich trigger reset if problems occur with the clock signal, illegal op codes, or the watchdog timer circuit.

Memory

The operating program and most of the personality information used by the microcontroller is stored in 128K x 8 Flash EPROM U108. The use of a Flash memory device allows the program to be conveni en tl y updated using the standard programming setup and special Flash programming software. This eliminates the need to replace the microcontroller or a memory device such as an EPROM. To reprogram the Flash device, the microcontroller is placed in a special bootstrap mode by turning power on with the MODA/ MODB inputs pulled low. This is done by the RPI by applying 20 volts to the PTT pin of the microphone jack.

Radio tuning information is stored in the 512byte EEPROM in microcontroller U101. External 4K x 8 EEPROM U102 is used in high tier and data models to store additiona l personality informat ion. An EEPROM can be programmed many times, does not require a constant power supply, and retains data indefinitely.

Reset is also triggered when the transceiver is Flash programmed. A low pulse is created by C363 and R421 when the MODA/MODB inputs of the microcontroller are pulled low to initiate this programming. This automatically pl ace s the microcontroller in the flash programming mode. However, reset does not occur when flash programming is complete, so power must be turned off a nd then o n again t o resume normal operation.

Data Bus

A bi-directional data bus consisting of D0-D7 is used to transfer data in and out of the microcontroller. It is used t o tra nsfer para llel data in and out o f memory chips U107 (high tier only) and U108, and also program latches U110-U112. The logic level on the R/W

pin determines the direction of data on the data bus. If it is high, data is read into U101, and if it is low, data is written out. The E output goes high to indicate when data on the data bus is valid or when an external device can place data on the data bus.

3-4

February 2001

Part No. 001-9800-001

AUDIO/LOGIC DESCRIPTION (ALL MODELS)

CIRCUIT DESCRIPTION

Address Bus

The address bus consisting of A0- A1 5 is use d for addressing the memory location in U107 or U108 that data is being written to or read from. In addition, it provides chip select signals to latches U110-U112. Refer to Section 3.3.2 fo r more information on memory and I/O addressing.

A/D Converter Inputs

VRH/VRL - These inputs provide the reference voltages for the A/D converter circuitry. R115 and C105 attenuate noise present in the 5-volt supply applied to VRH.

PE0 - RSSI (Receive Signal Strength Indicator) input from limiter/detector U201 in the receiver. This signal is used along with the squelch signal to determine when valid data may be present and when to unmute the receive audio.

PE1 - Battery voltage input. The switched 13.6-volt supply is divided down by R161 and R168 to provide a 0-5 volt input. If the battery voltage is excessively high, the transmitter is disabled.

PE2 - Power amplifier temperature input from thermistor R601 on the PA board. The DC voltage of this signal decreases as temperature increases.

PE3 - Lock detect input from synthesizer IC U804. If this signal is high (near 5 volts) the synthesizer is locked on frequency (see Section 3.7.6).

PE4 - Power switch sense input. This input is high when the power switch is on and low when it is off. When the off condition is sensed, the microcontroller saves the current settings and then powers down the transceiver by turning Q110 off (see Section 3.2.1).

PE5 - Ignition switch sense input. This input is low when the ignition switch is on and high when it is off. The microcontroller senses the ignition switch to control such features as the power-off delay and horn alert.

PE7 - This input senses the voltage on the IN3 pin of Option 1 slot wire-out W301.

Serial Peripheral Interface Port (SPI), OR Gate (U103)

This serial port is formed by the MOSI, MISO, and SCK pins (31, 30, 32) of the microcontroller. It is a synchronous port which means that a clock signal is used to indicate when data on the data line is valid. This port has both master and sla ve conf igu rations a nd in this appl ication, the master configuration is always used. In the master configuration the microcontroller generates the clock and other signals.

MOSI (Master Out, Slave In) - This is the serial data output for the port.

MISO (Master In, Slave Out) - This is the se ri al data input for this port.

SCK - Serial clock output. This pin provid es the cloc k signal to all devices served by this port.

This port provides two-way serial data communication with EEPROM U102 (high tier and data models) and microcontroller U2 on the display board (high tier only). In addition, it provides programming data to the RF board for shift registers U800 and U801, digital potentiometer U802, and synthesizer IC U804 (see Section 3.7.8). It also provides programming data to shift register U305 (on the audio/logic board) which controls the squelch level.

OR gates U103A-D provide routing of the serial port signals to the RF and display boards. When the PD5 output (pin 33) of the microcontroller goes low, U103A and U103B route the data and clock signals to the RF board and shift register U305. Then when the Q4 output (pin 15) of latch U110 goes low, U103D routes the clock signal to th e displ ay board and U103C routes the display board data signal to the MISO pin. When communicating with the display board, PD5 goes high to block the data path through U103A and U103B.

Asynchronous Serial Communications Interface (SCI)

PE6 - This input senses the voltage on the IN2 pin of data modem connector J301 and Option 2 slot wire-out W311.

This is a full duplex serial port formed by the RxD (data input) and TxD (data output) pins (28, 29) of the microcontroller. This port uses a standard non-

February 2001

3-5

Part No. 001-9800-001

AUDIO/LOGIC DESCRIPTION (ALL MODELS)

CIRCUIT DESCRIPTION

return-to-zer o (NRZ) for mat consi sting of one s tart b it, eight or nine data bits, and one stop bit.

This port is used to provide data communication with the computer used to program the transceiver. Connection is made via the front panel microphone connector. Another use for this port is data communication with an external data device such as a modem. Connection is made via connector J301. Communication cannot occur simultaneously over both of these paths.

Other General Purpose Inputs and Outputs

The PA0-PA7 pins are used for general purpose inputs and outputs as follows:

PA0 - Input for PTT signal from the microphone jack and W302/W312 option slot wire-outs. This signal is low when the transmitter is keyed.

PA1 - Input for the receive LTR or Call Guard data signal.

PA2 - Service request input from microcontroller U2 on the display board. This tell s U101 tha t it has dat a to send on the SPI bus described previously.

and the data appears on data bus lines D0-D7. Chip select is performed by pulling the CE1 input (pin 20) low. The CE2 input is always pulled high by R114. The A13 and A14 address lines can be connected by changing jumpers if a 16K or 32K part is required. Data is read from U107 by pulling the OE input (pin

22) low. Likewise, data is written by pulling the WE input (pin 27) low. See the U104 description which follows for more information.

Flash EPROM (U108)

As described in Section 3.3.1, U108 can store up to 128K bytes of data. The memory space is arranged as 32K of common code space and twelve 8K blocks of bank code space. The A15 line of the microcontroller determines if common or bank code space is selected. When A15 is high, common space is selected, and when it is low, bank space is selected.

The A15 line controls the four two-input multiplexers in U109. When A15 is low, the A input is connected to Y which routes the PG0-PG3 outputs of the microcontroller to U108. PG0-PG3 then select the desired bank. Then when A15 is high, the B input is routed to Y and the A13-A15 address lines of the microcontroller are routed to U108.

PA3 - Input from the Option 1 pin of modem connector J301.

PA4/PA5 - Transmit LTR/Call Guard data output. These two outputs are used to create a pseudo sinewave signal. See Section 3.5.4 for more information.

PA6 - Output for supervisory tones generated by the microcontroller such as busy and out-of-range.

PA7 - Input from the squelch circuit (see Section

3.4.4). When the received signal strength increases to the squelch threshold level, this input goes high. The microcontroller uses this information to determine when receive data is valid and to control audio muting.

3.3.2 MEMORY AND LATCH PROGRAMMING

RAM U107

When a data read or write to U107 occurs, the

location in U107 is selected by address lines A0-A12,

Therefore, when a data read or write to U108 occurs, the lower 13 bits of the address are specified by address lines A0-A12 and the rest of the address is specified as just described . The data appea rs on data bus lines D0-D7. Data is read from U108 by pulling the OE pulling the WE

input (pin 24) low, and data is written by

input (pin 31) low. Refer to the following U104 description for more information. Chip select is provided by pulling the CE

input (pin

22) low.

Read/Write Strobe Select (U104A-D)

NAND gates U104C and U104B select the read and write signals applied to U107 and U108. When a memory read occurs, the R/W

output of the microcontroller goes high. This signal is inver ted by U104C and applied to the OE operation occurs, the R/W

of U108. When a memory write

output of the microcontroller goes low. U104B is then enabled by the high output of U104C, and the high E signal is inverted by U104B and applied to the WE

pin of U107 and to

U104D.

3-6

February 2001

Part No. 001-9800-001

AUDIO/LOGIC DESCRIPTION (ALL MODELS)

CIRCUIT DESCRIPTION

NAND gates U104A and U104D provide gating of the write signal to U108. Data is written to this device only during Flash programming. Therefore, when Flash programming occurs, the Q3 output (pin

16) of shift register U 111 goes high which enables U104A. A double inversion of the write signal then occurs and it is applied to the WE

input of U108.

Latch Programming (U106, U110-U112)

Decoder U106 provides chip select to octal latches U110, U111, and U112. When data is written to U106 address space, a low signal is applied to chip select input G2A

(pin 4) and a high signal is appl ied to chip select input G1 (pin 6). The thre e address bits applied to the A, B, and C inp uts of U106 sel ect on e of the eight outputs. When an output is selected, it goes low.

Data is latched by U110-U112 on a rising edge of a clock signal from U106. Therefore, when the U106 output is disabled, data is latched. The outputs of the latches are enabled when the OC

input (pin 1 ) is low, and the outputs are a high impedance state when it is high.

3.4 RECEIVE AUDIO/DATA PROCESSING

NOTE: A block diagram of the audio and data processing circuitry is shown in Figure 3-3.

3.4.1 AMPLIFIER (U301B)

The demodulated receive audio/data signal from limiter/detector U201 in the receiver is applied to amplifier U301B. The gain of this amplifier is controlled by analog swi tch U307B. The gain is highe r for narrow-band (12.5 kHz) channels to compensate for the lower detected signal le vel that resul ts from the lower deviation used with those channels. The gain is approximately four wi th narrowba nd channel s and two with wideband (25 kHz) channels.

The control input of U307B (pin 5) is low for narrowband channels and high for wideband channels. When it is high, the switch is closed and R327 is switched into the circuit. This adds more feedback which decreases the gain. The control signal comes from the Q0 output (pin 19) of latch U111. Transistor Q305 inverts this signal and also provides level

translation from 5-volt logic levels of U111 to the 8volt logic levels of U307B.

From U301B the receive audio/data signal is fed to audio, data, and squelch circuits. Refer to the following descriptions for more information.

3.4.2 RECEIVE AUDIO PROCESSING

Bandpass Filter (U301C, U301D)

U301C and U301D form a bandpass filter which passes frequencies in the 300-3000 Hz range. This attenuates frequenci es below 300 Hz such as LTR data and Call Guard signaling, and frequencies above 3 kHz such as noise. These stages also provide 6 dB per octave de-emphasis to remove the pre-emphasis that was added to the signal when it was transmitted.

Mute Gate (U307C), Summing Amplifier (U301A)

The receive audio signal is then routed via the option wireouts to mute gate U307C. This gate mutes the signal when no carrier is being received or if the message is intended for someone else. It is controlled by the Q5 output (pin 14) of latch U110. When the audio signal is muted, t his outpu t is high. T his signal is then inverted by Q301 resulting in a low signal on the control input (pin 6) of gate U307C.

U301A is a summing amplifier which combines the supervisory tone signal from microcontroller pin 36 (PA6) with the receive audio signal. Supervisory tones include the busy and intercept tones and other beeps that are heard by the user. C320 provides additional feedback of t he higher f requenci es present in the square-wave output of the microcontroller. C323 and R352 also provide shaping of this signal.

Audio Power Amplifier (U306)

The output signal from U301A is fed to the microphone connector through C321 and to audio power amplifier U306. This is a 5-watt (wit h an 8-ohm load) bridge-type amplifier. Therefore, both outputs are connected directly to the speaker and neither speaker terminal is grounded. Thi s devi ce is int er nal ly protected from damage resulting from shorting either output to ground or B+, or shortin g acr oss the out put s.

3-7

February 2001

Part No. 001-9800-001

AUDIO/LOGIC DESCRIPTION (ALL MODELS)

CIRCUIT DESCRIPTION

From

Receiver

Rx Audio/Data

From

Logic

From

Logic

Microphone

From

Logic

Gain Adjust

TRANSMIT DATA

From Logic

RECEIVE AUDIO

Amplifier

U301B

U307B

Serial Data

Microphone

Amplifier

U303B

Mic Audio Gate Control

Low Pass Filter

< 140/211 Hz

Data

Bandpass Filter/

De-Emphasis

300-3000 Hz

U301C,

U301D

Low-Pass Filter

< 140/211 Hz

U300B,

U300C

Q300

Bandpass Filter

U304A

TRANSMITAUDIO

High Pass Filter

> 300 Hz

U303C

Tx Data Gate

U304A

U307C

Rx Audio

Gate

RECEIVE DATA

Data

Detector

U300D,

U300A

Comparator

U304B

U305

Mic Audio

Gate

U308B

Q307

Q301

Digital

Squelch

Control

Amplifier

U303D

Summing

Amplifier

U301A

SQUELCH

Q302

Pre-Emphasis/

Limiter

U303A

Rx Audio Gate Control

Supervisory Tones

Audio

Amplifier

U306

Front Panel

Volume Control

(9842)

Audio Mute Control

Digital Receive Data

Filter Bandwidth Control

Squelch Signal

Splatter Filter

> 3 kHz U302B,

U302C

Analog Transmit Data

Audio

U309

From Logic

Speaker

Digital Volume

Control

(98x1)

From Logic

To Logic

From Logic

To Logic

To Synthesizer

From Logic

Tx Audio Gate Control

Figure 3-3 Audio and Data Processing Circuitry Block Diagram

Pin 5 is the input o f an in terna l ga in cont rol s tage. Gain increases in proportion to increases in the DC voltage on this pin. With the low tier models, volume control is provided b y a D/A conv erter fo rmed by sh ift register U309 and several resistors. The six-bit output controls the volume in 64 steps. U309 is programmed by the SPI bus described in Section 3.3.1. With the mid and high tier models, the front panel volume control is part of a voltage divider which includes R356 and R426.

If the voltage on pin 5 falls below approximately

0.4 volt DC, the output is muted. Speaker muting is

controlled by the Q7 output (pin 12) of latch U110. When this output goes high, inverter/level translator Q302 turns on which gro unds the vol ume contro l input of U306 and mutes the speaker.

3.4.3 RECEIVE DATA PROCESSING

The receive audio/data signal from amplifier U301B is applied to a low-pass filter formed by U300B and U300C. This filter attenuates voice and harmonic frequencies occurring above the data band.

February 2001

3-8

Part No. 001-9800-001

+ 97 hidden pages

EFJohnson 9800, 988X, 984X, 989X User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

TABLE OF CONTENTS

SECTION 1 GENERAL INFORMATION

1.1 SCOPE OF MANUAL

1.1.1 GENERAL

1.2 TRANSCEIVER DESCRIPTION

1.2.1 GENERAL

1.1.2 LTR®, LOW TIER, AND DATA MODELS

1.2.2 AVAILABLE FREQUENCY BANDS

1.2.3 FRONT AND REMOTE MOUNTING

1.2.4 NPSPAC MODELS (800 MHZ ONLY)

1.2.5 PROGRAMMING

1.2.6 TRANSCEIVER ALIGNMENT

1.3 PART NUMBER BREAKDOWN

1.4 TRANSCEIVER IDENTIFICATION

1.5 ACCESSORIES

1.6 PRODUCT WARRANTY

1.7 FACTORY CUSTOMER SERVI CE

1.8 FACTORY RETURNS

1.9 REPLACEMENT PARTS

1.10 INTERNET HOME PAGE

UHF 984x SPECIFICATIONS

800 MHz 988x SPECIFICATIONS

900 MHz 989x SPECIFICATIONS

SECTION 2 INSTALLATION

2.1 GENERAL

2.1.2 PERFORMANCE TESTS

2.1.1 SCOPE OF INSTRUCTIONS

2.1.3 TRANSCEIVER PROGRAMMING

2.1.4 REQUIRED POWER SOURCE

2.2 MOUNTING THE TRANSCEIVER

2.2.1 SELECTING A MOUNTING LOCATION

2.2.2 INSTALLATION COMPONENTS

2.2.3 ATTACHING MOUNTING BRACKET

2.3 POWER CABLE INSTALLATION

2.4 ACCESSORY CABLE INSTALLATION

2.4.1 GENERAL

2.4.2 ACCESSORY PIGTAIL INSTALLATION

2.4.3 CONNECTING IGNITION SENSE WIRE

2.4.4 CONNECTING HORN ALERT WIRE

2.5 REMOTE CONTROL UNIT INSTALLATION

2.5.1 GENERAL

2.4.5 OTHER ACCESSORY CABLE OUTPUTS

2.5.2 MOUNTING REMOTE CONTROL UNIT

2.6 USING AN EXTERNAL SPEAKER

2.7 DATA CABLE INSTALLATION

2.7.1 GENERAL

2.7.2 DATA CABLE INSTALLATION

2.8 KEY CAP KITS

2.8.1 MULTI-NET AND LTR-NET MODELS

2.8.2 SMARTNET/SMARTZONE MODELS

SECTION 3 CIRCUIT DESCRIPTION

3.1 GENERAL TRANSCEIVER DESCRIPTION

3.1.1 INTRODUCTION

3.1.3 SYNTHESIZER

3.1.4 AUDIO/LOGIC BOARD

3.1.2 CIRCUIT PROTECTION (FUSES)

3.1.5 RECEIVER

3.1.6 TRANSMITTER

3.2 POWER DISTRIBUTION AND SWITCHING

3.2.1 POWER SWITCHING CONTROL

3.2.2 SUPPLY SWITCHING

3.3 AUDIO/LOGIC BOARD DIGITAL CIRCUIT

3.3.1 MICROCONTROLLER (U101)

3.3.2 MEMORY AND LATCH PROGRAMMING

3.4 RECEIVE AUDIO/DATA PROCESSING

3.4.1 AMPLIFIER (U301B)

3.4.2 RECEIVE AUDIO PROCESSING

3.4.3 RECEIVE DATA PROCESSING