Motorola EP450 User Manual

MOTOROLA, The Stylized M logo are trademarks of Motorola, Inc. All other product or service names are the property of their respective owners. © 2003 Motorola, Inc. All rights reserved. Printed in U.S.A.

HKLN4215A

™

EP450

Portable Radio Basic Service Manual

EP450 Portable Radio

Basic Service Manual

VHF 146-174 MHz

UHF 403-440 MHz UHF 438-470 MHz UHF 465-495 MHz

Motorola, Inc. 1301 E. Algonquin Road Schaumburg, IL 60196

HKLN4215A

Foreword

This manual is intended for use by service technicians familiar with similar types of equipment. It contains service information required for the e quipment described a nd is current as of the printing dat e. Changes which occur after the printing date may be incorporated by a complet e Manual revision or alternatively as additions.

Note:

Before operating or testing these units, please read the Product Safety and RF Exposure Compliance section.

Product Safety and RF Exposure Compliance

Note:

Before using this product, read the operating instructions for safe usage contained in the Product Safety and RF Exposure booklet enclosed with your radio.

a u t i o

ATTENTION!

This radio is restricted to occupational use only to satisfy FCC RF energy exposure requirements.

Before using this product, read the RF energy awareness information and operating instructions in the Product Safety and RF Exposure booklet enclosed with your radio (Motorola Publication part number 68P81095C98) to ensure compliance with RF energy exposure limits.

For a list of Motorola-approved antennas, batteries, and other accessories, visit the following web site which lists approved accessories: http://www.motorola.com/cgiss/index.shtml.

Computer Software Copyrights

The Motorola products described in th is manual may include cop yrighted Moto rola computer pr ograms stored in semiconductor memories or other media. La ws in the United States and other countries preserve for Motorola certain exclusive rights for copyrighted computer programs, including, but not limited to, the exclusive right to copy or reproduce in any form the copyrighted computer program. Accordingly, any copyrighted Motorola computer programs contained in the Motorola products de scribed in this manual may not be copied, reproduced, modified, reverse-engineered, or distributed in any manner without the express written permission of Motorola. Furthermore, th e purchase of Motorola products sh all not be deemed to gr ant either directly or by implication, estoppel, or otherwise, any license under the copyrights, patents or patent applications of Motorola, except for the normal no n-exclu sive license to use that arises by opera tion of law in the sale of a product.

Document Copyrights

No duplication or distribution of this document or any portion thereof shall take place without the express written permission of Motorola. No part of this manual may be reproduced, distributed, or transmitted in any form or by any means, electronic or mechanical, for any purpose without the express written permission of Motorola.

Disclaimer

The information in this document is carefully examined, and is believed to be entirely reliable. However, no responsibility is assumed for inaccuracies. Furthermore, Motorola reserves the right to make changes to any products herein to improve readability, function, or design. Motorola does not assume any liability arising out of the applications or use of any product or circuit descr ibed herein; nor does it cover any license under its patent rights nor the rights of others.

MOTOROLA, and the Stylized M logo are trademarks of Motorola, Inc. All other product or service names are the property of their respective owners. © 2003 Motorola, Inc. All rights reserved. Printed in U.S.A.

Table of Contents iii

Table of Contents

Foreword .....................................................................................................................................................ii

Product Safety and RF Exposure Compliance............................................................................................ii

Computer Software Copyrights .................. ... ... ... ....................................... ... .... ... .......................................ii

Document Copyrights..................................................................................................................................ii

Disclaimer....................................................................................................................................................ii

List of Figures ...............................................................................................vi

List of Tables ...............................................................................................viii

Chapter 1 Model Charts and Test Specifications.............................. 1-1

1.1 Radio Model Information................................................................................................................1-1

1.2 Model Chart for VHF 146-174 MHz ...............................................................................................1-2

1.3 Non-Display Model ........................................................................................................................1-3

1.4 Model Chart for UHF 403-440 MHz............................................................................................... 1-4

1.5 Model Chart for UHF 438-470 MHz............................................................................................... 1-5

1.6 Model Chart for UHF 465-495 MHz............................................................................................... 1-6

1.7 Display Model ................................................................................................................................1-7

1.8 MIL Standards ...............................................................................................................................1-8

Chapter 2 Theory Of Operation........................................................... 2-1

2.1 Introduction....................................................................................................................................2-1

2.2 Major Assemblies ................... ... .... ... ... ... ....................................... ... ... .... ......................................2-1

2.2.1 Receiver............................................................................................................................2-1

2.2.2 Transmitter........................................................................................................................2-2

Chapter 3 Test Equipment, Service Aids, and Service Tools........... 3-1

3.1 Test Equipment.............................................................................................................................. 3-1

3.2 Service Aids...................................................... ... ... ....................................... ... ............................. 3-2

Chapter 4 Performance Checks ..........................................................4-1

4.1 General..........................................................................................................................................4-1

4.2 Power-Up Self Test.... ....................................... ... ....................................... ... ... ............................. 4-1

4.3 RF Test Mode................................................................................................................................ 4-2

Chapter 5 Radio Alignment Procedures............................................. 5-1

5.1 Introduction....................................................................................................................................5-1

5.2 CPS Programming Setup .......... .... ... ... ... ... ....................................... ... .... ... ................................... 5-1

5.3 Radio Tuning Setup....................................................................................................................... 5-2

5.3.1 Initial Test Equipment Control Settings............................................................................. 5-3

5.4 Transmitter Alignment Options...................................................................................................... 5-3

5.4.1 R eferenc e Os cillat or Warp................... ... ... .... ... .......................................... ... ................... 5-3

5.4.2 Modulation Balance Attenuation ....................................................................................... 5-4

HKLN4215A December 3, 2003

iv Table of Contents

5.4.3 Transmit Power Tuning.....................................................................................................5-5

5.4.3.1 To Perform Transmit High Power Tuning, do the following: ..............................5-6

5.4.3.2 To Perform Transmit Low Power Tuning, do the following: ..............................5-6

5.4.4 VCO Attenuation................... ... ....................................... ... ... ... ... ......................................5-7

5.4.4.1 VCO Attenuation 25 kHz....................................................................................5-7

5.4.4.2 VCO Attenuation 12.5 kHz.................................................................................5-8

5.4.4.3 VCO Attenuation 20 kHz....................................................................................5-8

5.4.5 DTMF Deviation Tuning....................................................................................................5-9

5.4.6 MDC-1200 Deviation Tuning.............................................................. ... ... .... ...................5-10

5.5 Receiver Tuning.......... ....................................... ... ....................................... ... ... ..........................5-10

5.5.1 Rated Volume Tuning .....................................................................................................5-11

5.5.2 Squelch Tuning...............................................................................................................5-12

5.5.2.1 Manual Squelch Tuning...................................................................................5-12

5.5.2.2 Auto Tune ........................................................................................................5-13

5.5.3 RSSI System Level Tuning.............................................................................................5-13

5.5.4 RSSI Display Tuning.......................................................................................................5-14

5.6 Utilities .........................................................................................................................................5-14

5.6.1 Program Serial No. .........................................................................................................5-14

5.6.2 Temp Comp Data Read..................................................................................................5-14

5.6.3 Temp Comp Data Write ..................................................................................................5-14

5.7 Radio-to-Radio Cloning............................... ... .... ... ....................................... ... .............................5-14

Chapter 6 Display Model Disassembly and Re-assembly ................ 6-1

6.1 Introduction ....................................................................................................................................6-1

6.2 Preventive Maintenance ................................................................................................................6-1

6.2.1 Inspection..........................................................................................................................6-1

6.2.2 Cleaning Procedures ........................................................................................................6-1

6.3 Safe Handling of CMOS and LDMOS Devices..............................................................................6-2

6.4 Disassembling and Re-assembling the Radi o — Gen eral........................... ... ... ... .... .....................6-3

6.4.1 Radio Disassembly — Detailed ........................................................................................6-3

6.4.1.1 Front Cover From Chassis Disassembly ...........................................................6-3

6.4.1.2 Dust Cover Disassembly....................................................................................6-6

6.4.1.3 Speaker and Microphone Disassembly .............................................................6-6

6.4.1.4 Keyboard Removal ................................................................... .... .....................6-7

6.4.1.5 PTT Disassembly................................ ... ....................................... ... ... ... ... .........6-7

6.4.1.6 Chassis Disassembly.........................................................................................6-8

6.4.2 Radio Re-assembly - Detailed .................................... ....................................... ... ... .... ... ..6- 9

6.4.2.1 Dust Cover Re-assembly...................................................................................6-9

6.4.2.2 Microphone and Speaker Re-assembly.............................................................6-9

6.4.2.3 Keypad and LCD/Keyboard Re-assembly ............................................. ... .... ...6-1 1

6.4.2.4 Keyboard Retainer Re-assembly..................... ... ... ....................................... ...6-1 2

6.4.2.5 Chassis Assembly/Re-assembly......................................................................6-12

6.4.2.6 Chassis and Front Cover Re-assembly...........................................................6-13

6.4.2.7 PTT Re-assembly..... ... ... ... ....................................... ... ....................................6-15

6.5 Mechanical View and Parts List...................................................................................................6-16

6.5.1 EP450 Display Model Exploded View and Parts List......................................................6-16

Chapter 7 Non-Display Model Disassembly and Re-assembly........ 7-1

7.1 Introduction ....................................................................................................................................7-1

7.2 Preventive Maintenance ................................................................................................................7-1

7.2.1 Inspection..........................................................................................................................7-1

December 3, 2003 HKLN4215A

Table of Contents v

7.2.2 Cleaning Procedures ..................................... ... ... ... .... ...................................... ... .............7-1

7.3 Safe Handling of CMOS and LDMOS Devices.............................................................................. 7-2

7.4 Disassembling and Re-assembling the Radio — General............................................................. 7-3

7.4.1 Radio Disassembly — Detailed .................................. ... ... ... ... .... ...................................... 7-3

7.4.1.1 Front Cover From Chassis Disassembly...........................................................7-3

7.4.1.2 Dust Cover Disassembly ................................................................................... 7-5

7.4.1.3 Speaker and Microphone Disassembly.............................................................7-6

7.4.1.4 PTT Disassembly............................................................................................... 7-6

7.4.2 Chassis Disassembly..................................................................... ... ... .... .........................7-7

7.4.3 Radio Re-assembly - Detailed .......................................................................................... 7-8

7.4.3.1 Dust Cover Re-assembly................................................................................... 7-8

7.4.3.2 Microphone and Speaker Re-assembly ... ....................................... ... ... .... .........7-8

7.4.3.3 Chassis Assembly/Re-assembly ....................................................................... 7-9

7.4.3.4 Chassis and Front Cover Re-assembly........................................................... 7-10

7.4.3.5 PTT Re-assembly............................................................................................ 7-11

7.5 Mechanical View and Parts List................................................................................................... 7-13

7.5.1 EP450 Non-Display Exploded View and Parts List......................................................... 7-13

Chapter 8 Troubleshooting Tables .....................................................8-1

8.1 Power-Up Error Codes ........... ... .... ... ....................................... ... ...................................... ... ..........8-1

8.2 Operational Error Codes................................................................................................................8-1

8.3 Troubleshooting Table for Receiver..................... ....................................... ... ................................ 8-2

8.4 Troubleshooting Table for Transmitter........................................................ ... ... .... ......................... 8-3

Appendix A Accessories.........................................................................A-1

Appendix B Warranty, Service Support, and Replacement Parts .......B-1

1.1 Scope of Manual............................................................................................................................1-1

1.2 Warranty ........................................................................................................................................1-1

1.2.1 Warranty Period and Return Instructions.......................................................................... 1-1

1.2.2 After Warranty Period ....................................................................................................... 1-1

1.3 Replacement Parts Ordering ...................................... ... ... ... ....................................... ... ... .... .........1-1

1.3.1 Basic Ordering Information.. ... ... ....................................... ... ... ....................................... ... 1-1

1.3.2 Motorola Online ................................................................................................................ 1-2

1.3.3 Mail Orders .................................................................................... ... ................................ 1-2

1.3.4 Telephone Orders............................................................................................................. 1-2

1.3.5 Fax Orders........................................................................................................................1-2

1.3.6 Parts Identification ............................................................................................................1-2

1.4 Technical Support..........................................................................................................................1-3

Glossary......................................................................................................G-1

HKLN4215A December 3, 2003

vi Table of Contents

List of Figures

Figure 2-1. Major Assemblies Block Diagram..... .... ... ... ... .... ... ....................................... ... ... ... ... .... .....2-1

Figure 2-2. Transceiver Block Diagram ..............................................................................................2-2

Figure 3-1. Programming/Test Cable .. .... ... ....................................... ... ... ... .........................................3-4

Figure 3-2. Wiring of the Connectors..................................................................................................3-4

Figure 4-1. Radio Tuning Setup..........................................................................................................4-1

Figure 4-2. Side Button Locations.......................................................................................................4-2

Figure 5-1. CPS Programming Setup ..................................................... ....................................... .....5-1

Figure 5-2. Radio Tuning Setup..........................................................................................................5-2

Figure 5-3. Reference Oscillator Warp Window..................................................................................5-3

Figure 5-4. Modulation Balance Window ............................................................................................5-4

Figure 5-5. Transmit Power Window (High Power).............................................................................5-5

Figure 5-6. VCO Attenuation Window (12.5 kHz)...............................................................................5-7

Figure 5-7. DTMF Deviation Tuning Window............. ... ... .... ... ... ... .... ..................................................5-9

Figure 5-8. MDC-1200 Deviation Tuning Window ............................................................................5-10

Figure 5-9. Rated Volume Tuning Window................ ... ... .... ... ... ... ....................................... ... ... .... ...5 -11

Figure 5-10. Squelch Tuning Window............. ... ... .... ... ....................................... ... ... ... .......................5-12

Figure 5-11. RSSI Tuning..... ... .... ... ....................................... ... ... ... .... ..................................... ...........5-13

Figure 5-12. Side Button Locations.....................................................................................................5-15

Figure 6-1. Battery Removal............................ ... ....................................... ... .... ... ...............................6-3

Figure 6-2. Antenna and Knob Removal. ... ... ....................................... ... ... ... ......................................6-4

Figure 6-3. Chassis Removal........... ... ....................................... ... .... ... ...............................................6-4

Figure 6-4. Keyboard Flex Connection ...............................................................................................6-5

Figure 6-5. Microphone and Speaker Connection s .......................................... ... ...............................6-5

Figure 6-6. Dust Cover Disassembly ................................................... ... ... ... .... ... ...............................6-6

Figure 6-7. Removal Speaker-Microphone Assembly .. ... .... ... ... ....................................... ... ... ... .... ... ..6- 6

Figure 6-8. Keypad Removal ........................................................ .... ... ... ... .........................................6-7

Figure 6-9. PTT Removal.................... .... ... ... ... ....................................... ... ... .... ... ... ............................6-8

Figure 6-10. Removal of Main Board from Chassis.................................................. ... .... ... ... ...............6-8

Figure 6-11. Dust Cap Re-assembly.. ... .... ... ....................................... ... ...................................... .........6-9

Figure 6-12. Microphone Re-assembly..... ...................................... .... ...................................... ... .... ...6-10

Figure 6-13. Speaker Re-assembly ............................................. ... .... ... ... ...................................... ....6-10

Figure 6-14. Keypad Re-assembly ................. ... ... ....................................... ... ....................................6-11

Figure 6-15. LCD/Keypad Board Re-assembly............................... ....................................... ... ... .... ...6 -1 1

Figure 6-16. Keyboard Retainer Re-assembly....................................................................................6-12

Figure 6-17. Main Board onto Chassis Re-assembly .........................................................................6-13

Figure 6-18. Microphone and Speaker Wires Re-assembly ...............................................................6-14

Figure 6-19. Keyboard Flex Cable Connection...................................................................................6-14

Figure 6-20. Fastening the Chassis................... ....................................... ... ... ....................................6-15

Figure 6-21. PTT Re-assembly....................... ....................................... ... ... ... .... ... .............................6-15

Figure 6-22. EP450 Full Keypad Radio Exploded View......................................................................6-16

Figure 7-1. Battery Removal............................ ... ....................................... ... .... ... ...............................7-3

Figure 7-2. Antenna and Knob Removal. ... ... ....................................... ... ... ... ......................................7-4

Figure 7-3. Chassis Removal........... ... ....................................... ... .... ... ...............................................7-4

Figure 7-4. Microphone and Speaker Connection s .......................................... ... ...............................7-5

Figure 7-5. Dust Cover Disassembly ................................................... ... ... ... .... ... ...............................7-5

Figure 7-6. Removal Speaker-Microphone Assembly .. ... .... ... ... ....................................... ... ... ... .... ... ..7- 6

Figure 7-7. PTT Removal.................... .... ... ... ... ....................................... ... ... .... ... ... ............................7-7

Figure 7-8. Removal of Main Board from Chassis............... ... ... ... ....................................... ... ... .... .....7-7

Figure 7-9. Dust Cap Re-assembly..... .... ...................................... .... ... ... ... .........................................7-8

Figure 7-10. Microphone Re-assembly..... ...................................... .... ...................................... ... .... .....7-8

December 3, 2003 HKLN4215A

Table of Contents vii

Figure 7-11. Speaker Re-assembly...................................................................................................... 7-9

Figure 7-12. Installation of Main Board onto Chassis.........................................................................7-10

Figure 7-13. Microphone and Speaker Wires Re-assembly...............................................................7-11

Figure 7-14. Fastening the Chassis.................................................................................................... 7-11

Figure 7-15. PTT Re-assembly........................................................................................................... 7-12

Figure 7-16. EP450 Non-Display Radio Exploded View.....................................................................7-13

HKLN4215A December 3, 2003

viii Table of Contents

List of Tables

Table 1-1. Radio Model Number (Example: LAH65KDC9AA2AN)....................................................1-1

Table 1-2. MIL STDS 810 C, D, E, and F: Applicable to UHF and VHF Specifications.....................1-8

Table 3-1. Recommended Test Equipment.......................................................................................3-1

Table 3-2. Service Aids......................................................................................................................3-2

Table 3-3. Recommended Service Tools ..........................................................................................3-2

Table 4-1. Initial Equipment Control Settings ....................................................................................4-2

Table 4-2. Test Environments............................................................................................................4-3

Table 4-3. Test Channel Spacing ......................................................................................................4-3

Table 4-4. Test Frequencies..............................................................................................................4-4

Table 4-5. Receiver Performance Checks.........................................................................................4-4

Table 4-6. Transmitter Performance Checks.....................................................................................4-5

Table 5-1. Initial Equipment Control Settings ....................................................................................5-3

Table 5-2. Reference Oscillator Specifications..................................................................................5-4

Table 5-3. Transmit High/Low Power Level.......................................................................................5-6

Table 5-4. Deviation Specifications ..................................................................................................5-8

Table 5-5. Squelch Deviation Values...............................................................................................5-12

Table 8-1. Power-Up Error Code Display ..........................................................................................8-1

Table 8-2. Operational Error Code Display........................................................................................8-1

Table 8-3. Receiver Troubleshooting Table.......................................................................................8-2

Table 8-4. Transmitter Troubleshooting Table...................................................................................8-3

Related Publications

E-Series Detailed Service Manual........................................................................HKLN4216

E-Series Interactive User CD ............... ... ... ... .... ...................................... .... ... ... ...HKLN4212

December 3, 2003 HKLN4215A

Chapter 1 Model Charts and Test Specifications

H = Portable

1.1 Radio Model Information

The model number and serial number are locate d on a label attached to the back of your radio. You can determine the RF output power , frequency ban d, protocols , and ph ysica l pac kages . The example below shows one portable radio model number and its specific characteristics.

Table 1-1. Radio Model Number (Example: LAH65KDC9AA2AN)

Type of

Unit

LA H 65 K

LA = Motorola Internal Use

Model Series

Freq. Band

VHF

(146-174

MHz)

(403-440

MHz)

UHF

(438-470

MHz)

UHF

(465-495

MHz)

Power

Level

4 W or

5 W

Physical

Packages

Non

Display

Full

Display

Channel Spacing

Pro-

gramma-

ble

Protocol

Conven-

tional

Feature

Level

16 CH

64 CH

Model

Revision

Model

Package

1-2 Model Charts and Test Specifications: Model Chart for VHF 146-174 MHz

1.2 Model Chart for VHF 146-174 MHz EP450, VHF, 146-174 MHz

Model Description

LAH65KDC9AA2AN EP450, 146-174 MHz, 5 W, 16 Ch. Non-Display Model

LAH65KDH9AA4AN EP450, 146-174 MHz, 5 W, 64 Ch. Display Model

Item Description

X PMUD1857_ EP450, 146-174 MHz, 5 W, 16 Ch. Non-Display Model

X PMUD1859_ EP450, 146-174 MHz, 5 W, 64 Ch. Display Model X X PMLD4222_ EP450, Back Cover Kit. 146-174 MHz X PMLN4601_ Non-Display, Front Housing Kit, 16 Ch.

X PMLN4603_ Full Display, Front Housing Kit, 64 Ch. X X NNTN4496_R Ni-Cd Battery, 1100 mAH X X NNTN4497_R Li-Ion Battery, 1800 mAH X X NNTN4851_ NiMH Battery, 1400 mAH X X NNTN4970 Slim Li-Ion Battery, 1600 mAH X X WPLN4138_R Rapid 90-Min. Desktop Charger w/US Plug X X WPLN4139_R Rapid 90-Min. Desktop Charger w/Euro Plug X X WPLN4142_R Rapid 90-Min. Desktop Charger w/Argentina Plug X X WPLN4140_R Rapid 90-Min. Desktop Charger w/UK Plug X X RLN5644

X X NAD6502_R Antenna, 146-174 MHz, 14cm X X HKLN4212 E-Series Interactive User CD X = Indicates compatibility with model(s)

" Belt Clip

2.5

December 3, 2003 HKLN4215A

VHF Test Specifications 1-3

1.3 VHF Test Specifications

General

VHF

Channel Capacity: 16 or 64 Channels Power Supply: 7.5 Volts ±20% Dimensions (HxWxD)

with Battery: High Capacity Li-Ion

Weight: with Battery:

High Capacity Li-Ion 397g (14.0 oz.)

Average Battery Life @ (5-5-90* Duty Cycle): High Capacity Li-Ion

Model Number: LAH65KDC9AA2_N,

Frequency Range: 146-174 MHz Channel Spacing: 12.5/20/25 kHz Temper at ur e Ran g e: -30° to 60°C Frequency Stability: ±2.5 ppm

130.5mm x 62mm x 45mm

" x 2.44" x 1.77")

(5.12

17 hr low power/ 12 hr high power

LAH65KDH9AA4_N

T ransmitter

VHF

RF Output Li-Ion @ 7.5 V:

Frequency: 146-174 MHz Channel Spacing: 12.5/20/25 kHz Spurious/Harmonics: -36 dBm < 1 GHz

FM Noise: -40 dB (12.5 kHz)

Modulation Limitation: ±2.5 kHz @ 12.5 kHz/

Audio Response: (from 6 dB/oct. Pre-emphasis, 300 to 3000 Hz)

Audio Distortion: @ 1000 Hz, 60% Rated Max. Dev.

Low 1 W

-30 dBm > 1 GHz

-45 dB (25 kHz)

±5 kHz @ 25 kHz +1 to -3 dB

High 5 W

FCC ABZ99FT3045

*5% receive; 5% transmit; 90% standby.

Receiver

VHF

12.5 kHz

Channel Spacing: 12.5/20/25 kHz Sensitivity

12 dB EIA SINAD: Adjacent Channel

Selectivity: Intermodulation: -70 dB Freq. Stability

(-30° C to +60° C): Spur Rejection: -75 dB Image and 1/2 I-F

Rejection: Audio Output

@ <5% Distortion:

0.25 µV (typical)

-60 dB -70 dB

0.00025%

-70 dB

500 mW into 24

VHF

25kHz

Ω

Specifications subject to change without notice. All electrical specifications and methods refer to EIA/TIA 603 standards.

1-4 Model Charts and Test Specifications: Model Chart for UHF 403-440 MHz

1.4 Model Chart for UHF 403-440 MHz EP450, UHF, 403-440 MHz

Model Description

LAH65QDC9AA2AN EP450, 403-440 MHz, 4 W, 16 Ch. Non-Display Model

LAH65QDH9AA4AN EP450, 403-440 MHz, 4 W, 64 Ch. Display Model

Item Description

X PMUE1972_ EP450, 403-440 MHz, 4 W, 16 Ch. Non-Display Model

X PMUE1974_ EP450, 403-440 MHz, 4 W, 64 Ch. Display Model X X PMLE4288_ EP450, Back Cover Kit. 403-440 MHz X PMLN4601_ Non-Keypad, Front Housing Kit, 16 Ch.

X PMLN4603_ Full Keypad, Front Housing Kit, 64 Ch. X X NNTN4496_R Ni-Cd Battery, 1100 mAH X X NNTN4497_R Li-Ion Battery, 1800 mAH X X NNTN4851_ NiMH Battery, 1400 mAH X X NNTN4970 Slim Li-Ion Battery, 1600 mAH X X WPLN4138_R Rapid 90-Min. Desktop Charger w/US Plug X X WPLN4139_R Rapid 90-Min. Desktop Charger w/Euro Plug X X WPLN4142_R Rapid 90-Min. Desktop Charger w/Argentina Plug X X WPLN4140_R Rapid 90-Min. Desktop Charger w/UK Plug X X RLN5644 2.5” Belt Clip X X NAE6483_R Antenna, 403-520 MHz, Whip X X HKLN4212 E-Series Interactive User CD X = Indicates compatibility with model(s)

December 3, 2003 HKLN4215A

Model Charts and Test Specifications: Model Chart for UHF 438-470 MHz 1-5

1.5 Model Chart for UHF 438-470 MHz

EP450, UHF, 438-470 MHz

Model Description

LAH65RDC9AA2AN EP450, 438-470 MHz, 4 W, 16 Ch. Non-Display Model

LAH65RDH9AA4AN EP450, 438-470 MHz, 4 W, 64 Ch. Display Model

Item Description

X PMUE1966_ EP450, 438-470 MHz, 4 W, 16 Ch. Non-Display Model

X PMUE1968_ EP450, 438-470 MHz, 4 W, 64 Ch. Display Model X X PMLE4283_ EP450, Back Cover Kit. 438-470 MHz X PMLN4601_ Non-Display, Front Housing Kit, 16 Ch.

X PMLN4603_ Display, Front Housing Kit, 64 Ch. X X NNTN4496_R Ni-Cd Battery, 1100 mAH X X NNTN4497_R Li-Ion Battery, 1800 mAH X X NNTN4851_ NiMH Battery, 1400 mAH X X NNTN4970 Slim Li-Ion Battery, 1600 mAH X X WP LN4 1 38 _ R Rapid 90-Min. Deskto p Char ge r w/US Plug X X WPLN4139_R Rapid 90-Min. Desktop Charger w/Eur o Pl ug X X WP LN4 1 42 _ R Rapid 90-Min. Desktop Charge r w/Ar g en tin a Plug X X WPLN4140_R Rapid 90-Min. Desktop Charger w/UK Plug X X RLN5644

X X NAE6483_R Antenna, 403-520 MHz, Whip X X HKLN4212 E-Series Interactive User CD X = Indicates compatibility with model(s)

" Belt Clip

2.5

HKLN4215A December 3, 2003

1-6 Model Charts and Test Specifications: Model Chart for UHF 465-495 MHz

1.6 Model Chart for UHF 465-495 MHz EP450, UHF, 465-495 MHz

Model Description

LAH65SDC9AA2AN EP450, 465-495 MHz, 4 W, 16 Ch. Non-Display Model

LAH65SDH9AA4AN EP450, 465-495 MHz, 4 W, 64 Ch. Display Model

Item Description

X PMUE1978_ EP450, 465-495 MHz, 4 W, 16 Ch. Non-Display Model

X PMUE1980_ EP450, 465-495 MHz, 4 W, 64 Ch. Display Model X X PMLE4284_ EP450, Back Cover Kit. 465-495 MHz (1/4W) X PMLN4601_ Non-Display, Front Housing Kit, 16 Ch.

X PMLN4603_ Display, Front Housing Kit, 64 Ch. X X NNTN4496_R Ni-Cd Battery, 1100 mAH X X NNTN4497_R Li-Ion Battery, 1800 mAH X X NNTN4851_ NiMH Battery, 1400 mAH X X NNTN4970 Slim Li-Ion Battery, 1600 mAH X X WPLN4138_R Rapid 90-Min. Desktop Charger w/US Plug X X WPLN4139_R Rapid 90-Min. Desktop Charger w/Euro Plug X X WPLN4142_R Rapid 90-Min. Desktop Charger w/Argentina Plug X X WPLN4140_R Rapid 90-Min. Desktop Charger w/UK Plug X X RLN5644 2.5” Belt Clip X X NAE6483_R Antenna, 403-520 MHz, Whip X X HKLN4212 E-Series Interactive User CD X = Indicates compatibility with model(s)

December 3, 2003 HKLN4215A

UHF Test Specifications 1-7

1.7 UHF Test Specifications

General

UHF

Channel Capacity: 16 or 64 Channels Power Supply: 7.5 Volts ±20% Dimensions (HxWxD)

with Battery: High Capacity Li-Ion

Weight: with Battery:

High Capacity Li-Ion 397g (14.0 oz.)

Average Battery Life @ (5-5-90* Duty Cycle): High Capacity Li-Ion

Model Numbers: LAH65QDC9AA2_N

Modulation Limitation: ±2.5 kHz @ 12.5 kHz/

Channel Spacing: 12.5/20/25 kHz Temperature Range: -30° to 60°C Frequency Stability: ±2.5 ppm FCC ABZ99FT4057 403-440MHz

*5% receive; 5% transmit; 90% standby.

130.5mm x 62mm x 45mm

" x 2.44" x 1.77")

(5.12

17 hr low power/ 12 hr high power

LAH65QDH9AA4_N LAH65RDC9AA2_N LAH65RDH9AA4_N LAH65SDC9AA2_N LAH65SDH9AA4_N

±5 kHz @ 25 kHz

ABZ99FT4056 438-470MHz ABZ99FT4058 465-495MHz

T ransmitter

UHF

RF Output Li-Ion @ 7.5 V:

Frequency: 403-440 MHz

Channel Spacing: 12.5/20/25 kHz Freq. Stability:

(-30° C to +60° C) Spurious/Harmonics: -36 dBm < 1 GHz

FM Noise: -40 dB (12.5 kHz)

Audio Response: (from 6 dB/oct. Preemphasis, 300 to 3000 Hz)

Audio Distortion: @ 1000 Hz, 60% Rated Max. Dev.

Low 1 W

438-470 MHz 465-495 MHz

0.00025%

-30 dBm > 1 GHz

-45 dB (25 kHz) +1 to -3 dB

<3%

High 4 W

Receiver

UHF

12.5 kHz

Channel Spacing: 12.5/20/25 kHz Frequency: 403-440 MHz

438-470 MHz 465-495 MHz

UHF

25kHz

Sensitivity 12 dB EIA SINAD:

Adjacent Channel Selectivity:

Intermodulation: -70 dB Freq. Stability

(-30° C to +60° C): Spur Rejection: -75 dB Image and 1/2 I-F

Rejection: Audio Output

@ <5% Distortion:

Specifications subject to change without notice. All electrical specifications and methods refer to EIA/TIA 603 standards.

0.25 µV (typical)

-60 dB -70 dB

0.00025%

-70 dB

500 mW into 24Ω

1-8 Model Charts and Test Specifications: MIL Standards

1.8 MIL Standards

Table 1-2. MIL STDS 810 C, D, E, and F: Applicable to UHF and VHF Specifications (8.2 and 8.4)

Military S tandards 810 C, D, E, & F: Parameters/Methods/Procedures

810C 810D 810E 810F

Applicable

MIL-STD

Low Pressure

High Temperature

Low Temperature

Temperature Shock

Solar Radiation

Rain 506.1 1,2 506.2 1,2 506.3 1,2 506.4 1 Humidity 507.1 2 507.2 2,3 507.3 2,3 507.4 3 Salt Fog 509.1 1 509.2 1 509.3 1 509.4 1 Dust 510.1 1 510.2 1 510.3 1 510.4 1 Vibration 514.2 8,10 514.3 1 514.4 1 514.5 1 Shock 516.2 1,2,5 516.3 1,4 516.4 1,4 516.5 1

Methods Procedures Methods Procedures Methods Procedures Methods Procedures

500.1 1 500.2 2 500.3 2 500.4 1

501.1 1,2 501.2 1,2 501.3 1,2 501.4 1,2

502.1 1 502.2 1,2 502.3 1,2 502.4 1,2

503.1 1 503.2 1 503.3 1 503.4 1

505.1 1 505.2 1 505.3 1 505.4 1

December 3, 2003 HKLN4215A

Chapter 2 Theory Of Operation

2.1 Introduction

This chapter provides a basic theory of operation for the radio components.

2.2 Major Assemblies

• Transceiver Board – contains all transmit, receive, and audio circuitry.

• Display (Display models only) – 8 characters (14 segments star burst) and 10 icons with backlighting, liquid-crystal display (LCD).

Keypad Board (Display models only) – Display model: a 2-button menu keypad with 2-way navigation button, and a 3 x 4 alphan umeric keypad.

Transceiver Board (Figure 2-1).

ntenna

Battery

Spkr

M140

Transceiver

Board

J301

J491

Figure 2-1. Major Assemblies Block Diagram

J460

J470

Mic

Keypad

Board

Display

2.2.1 Receiver

Incoming RF signals from the antenna are first routed through the harmonic filter and antenna switch, part of the transmitter circuitry, before being applied to the receiver front end. The receiver front end consists of a preselector filter, RF amplifier, interstage filter, and a double-balanced first mixer (Figure 2-2).

The mixer output is applied to a diplexer network which matches the 44.85 MHz IF signal to the crystal filter, and terminates the mixer into 50 ohms at all other frequencies.

The receiver back-end is a dual conversion design. High IF selectivity is provided by a 4-pole fundamental mode 44.85 MHz crystal filter. The output is matched to an IF amplifier stage. The output of the IF amplifier is applied to the input of the receiver IFIC.

2-2 Theory Of Operation: Major Assemblies

The IFIC is a low-voltage monolithic FM IF system incorporating a mixer/oscillator, two limiting IF amplifiers, quadrature detector, logarithmic received signal strength indicator (RSSI), voltage regulator and audio , and RSSI O p Amps. The secon d LO frequency, 44.395 MHz, is determined by a crystal oscillator. The second mixer converts the 44.85 MHz high IF frequency to 455 kHz.

Additional IF selectivity is provided by two ceramic filters. The first ceramic filter is a 4-pole filter used between the second mixer and IF amp. The second ceramic filter is a 6-pole filter and is used between the IF amp and the limiter input. F or the second cer amic filter, a wider filter is used for 20/25 kHz channel spacing, and a narrower filter is used for 12.5 kHz channels.

A ceramic resonator provides ph ases vs. frequency characteristic required by the quadrature detector , with 90 degree phase shift occurring at 455 kHz. The output of the IFIC is the recovered audio signal which is fed to the audio IC for amplification and signal conditioning. The outpu t of the audio IC is injecting into the audio PA which drives the 24 Ohm speaker.

2.2.2 Transmitter

• When the radio is transmitting, microphone audio is passed through the audio IC, where preemphasis and low-pass (splatter) filtering are done. The output of the aud io IC is used to modulate the TX VCO, which creates the modulated carr ie r. The modulated carrier is then amplified by the pre-driver and power amplifier circuit, which transmits the signal under dynamic power control

Audio PA

Spkr

Mic

Recovered Audio

Ceramic

Resonator

SSI

Ref. Osc.

Frac N

Mod

Audio IC

Demodulator

BW_SEL

Switching

IF IC

Loop Filter

Cer Fltr

Tx VCO

Circuit

Rx VCO

Circuit

VCOBIC

IF Amp

Tx Out

Rx Out

Crystal

Filter

Predriver

Mixer

Module

Power

Cntr

Image

Filter

T/R

Switch

Filter

Preselector

LNA

Harmoni

Filter

Figure 2-2. Transceiver Block Diagram

December 3, 2003 HKLN4215A

Chapter 3 Test Equipment, Service Aids, and

Service Tools

3.1 Test Equipment

Table 3-1 lists test equipment required to service the EP450 Radios.

Table 3-1. Recommended Test Equipment

Motorola Part No. Description Characteristics Application

R2600 series System analyzer This item will substitute for

items with an asterisk (*)

*R1074 Fluke 87 digital multi-

meter

Fluke 85 RF probe 500 MHz, 30 VAC max Use with Fluke 87 digital multi-

*R1377 AC voltmeter 1 mV to 300 mV, 10 mega-

R1611 Dual channel

100 MHz oscilloscope (Agillent)

S1339 RF millivolt meter 100 µV to 3V RF, 10 kHz to

*R1013 or *R1370

SINAD meter or SINAD meter with

RMS

True RMS metering, 200 kHz frequency counter, 32-segment bar graph with backlit display

ohm input impedance Two-channel, 100 MHz

bandwidth, 200 M sample rate/sec, 2 MB memory/ channel

1 GHz frequency range Without RMS audio volt-

meter or With RMS audio voltmeter

Frequency/deviation meter and signal generator for wide-range troubleshooting and alignment

Digital voltmeter is recommended for AC/DC voltage and current measurements

meter for RF voltage measurements.

Audio voltage measurements

Waveform measurements

RF level measurements

Receiver sensitivity measurements

3-2 Test Equipment, Service Aids, and Service Tools: Service Aids

3.2 Service Aids

Table 3-2 lists service aids recommended for working on the EP450 Radios. While all of these items

are available from Motorola, most are standard shop equipment items, and any equivalent item capable of the same performance may be substituted for the item listed.

Table 3-2. Service Aids

Motorola Part

No.

RLN4460 Portable Test Set Enables connection to the audio/accessory jack.

RLN4510 Battery Interface Regulates DC current and voltage between radio and

RVN4195 Customer Programming Soft-

ware and Tuner Software on

CD ROM AAPMKN4004 Programming Test Cable Connects radio to RIB (RLN4008). AAPMKN4003 Radio to Radio Cloning Cable

RLN4008 Radio Interface Box Enables communications between the radio and the

5886564Z01 RF Adaptor Adapts radio’s antenna port to BNC cabling of test

0180305K08 Shop Battery Eliminator Interconnects radio to power supply. HSN9412 Wall-Mounted Power Supply Used to supply power to the RIB (120 VAC).

Description Application

Allows switching for radio testing.

power supply. Program customer option and channel data.

Allows a radio to be duplicated from a master radio by transferring programmed data from the master radio to the other.

computer’s serial communications adapter.

equipment.

3080369B71 or 3080369B72

6686533Z01 Knob Remover/Chassis Opener Used to remove the front cover assembly. HKN9216 IBM Computer Interface Cable Connection from computer to RIB. 8180384N65 Housing Eliminator Allows testing of the radio outside of the housing. RLN5583 Flashing Adapter Flashing/CPS cable for authorized service centers.

Motorola Part

No.

RSX4043 TORX screwdriver Tighten and remove chassis screws 6680387A70 T6 TORX bit Removable TORX screwdriver bit R1453 Digital readout solder station Digitally controlled soldering iron RLN4062 Hot air workstation, 120 V Tool for hot air soldering/desoldering of surface

Computer Interface Cable Use B72 for the IBM PC AT or newer (9-pin serial

port). Use B71 for older models (25-pin serial port) . Connects the computer’s serial communications adapter to the RIB (PLN4008).

Table 3-3. Recommended Service Tool s

Description Application

mounted integrated circuits

December 3, 2003 HKLN4215A

Test Equipment, Service Aids, and Service Tools: Service Aids 3-3

Table 3-3. Recommended Service Tools (Continued)

Motorola Part

No.

Description Application

0180386A78 Illuminated magnifying glass with

lens attachment

Illumination and magnification of components

0180302E51 Master lens system 0180386A82 Anti-static grounding kit Used during all radio assembly and disassembly pro-

cedures 6684253C72 Straight prober 6680384A98 Brush 1010041A86 Solder (RMA type), 63/67,

0.5mm diameter, 1 lb. spool

0180303E45 SMD tool kit (included with

R1319A) R1319 ChipMaster (110 V) Surface mount removal and assembly of surface R1321 ChipMaster (220 V)

mounted integrated circuits and/or rework station

shields. Includes 5 nozzles. ChipMaster Nozzles: 6680332E83 PLCC-28* nozzle 6680332E82 PLCC-44* nozzle 6680332E94 PLCC-52 nozzle 6680332E96 PLCC-84 nozzle 6680334E67 QFP-160 nozzle 6680333E46 SOL-18 nozzle 6680332E84 SOIC-20 nozzle 6680332E87 SOL-20J nozzle 6680333E45 SOL-24 nozzle 6680333E55 TSOP-64 nozzle

* Included with ChipMaster packages

Soldering and Un-soldering IC’s

HKLN4215A December 3, 2003

3-4 Test Equipment, Service Aids, and Service Tools: Service Aids

Programming/Test Cable

3.5mm mono

2.5mm stereo

Figure 3-1. Programming/Test Cable

2.5mm stereo and

3.5mm

3.5mm Tip (Speaker +)

3.5mm Sleeve

2.5mm Tip (Microphone)

2.5mm

2.5mm Center

25 POSITION

MALE CONNECTOR

P2 P3

36.0”

CABLE

Orange

Blue

White

25 POSITION

FEMALE CONNECTOR

36.0”

CABLE

ohm

1UF,16V 5%

Spiral

Yellow

25 pin Male D Connector

Components molded inside

1 5

24 7

33K

20 8

15 16 9

25 pin Female

D Connector

1 15

4 11

To Test Box

Figure 3-2. Wiring of the Connectors

December 3, 2003 HKLN4215A

Chapter 4 Performance Checks

4.1 General

These radios meet published specifications through their manufacturing process by utilizing highaccuracy laboratory-quality test equipment. The recom mended field service equipment is as accur ate as the manufacturing equipment with few exceptions. This accuracy must be maintained in compliance with the manufacture r’s recommended calibration schedule.

Power Supply

Power Cable

RLN5410

Battery Eliminator

Radio

RF Adaptor 5886564Z01

Program/

Test Cable

AAPMKN4004

BNC

Test Box

RLN4460

RIB

RLN4008

30 dB Pad

Transmit

30 dB Pad

RF Generator

Receive

Audio In

Computer Interface Cable

Tx Data

Rx Data

Gnd

Service Monitor or

Counter

Wattmeter

Audio Gener ator

Sinad Meter

AC Voltmeter

4.2 Power-Up Self Test

Applying power to the r a dio by using the on/off v olume cont rol, starts a self-test routine which checks the RAM, EEPROM hardware and EEPROM checksum. Pressing and holding SB1 while turning on the radio causes the self-test routine to check for the ROM checksum as well. If these checks are successfully completed, the radio will generate the Self-Test Pass Tone. If the self-test is not successful, a Self-Test Fail Tone is heard.

RIB Power Supply

Figure 4-1. Radio Tuning Setup

4-2 Performance Checks: RF Test Mode

Supply voltage can be connected from the battery eliminator. The equipment required for alignment procedures is connected as shown in the Radio Performance Checks Setup diagram (Figure 4-1).

Initial equipment control settings should be as indicated in Table 4-1 and should be the same for all performance checks and tuner alignment procedures.

Table 4-1. Initial Equipment Control Settings

Service Monitor Test Set Power Supply

Monitor Mode: Power Monitor Spkr set: C Voltage: 7.5 Vdc RF Attenuation: -70 Spkr/load:

AM, CW, FM: FM PTT: OFF Volt Range: 10 V Oscilloscope Source: Mod

Oscilloscope Horiz: 1 0 mSec/Div Oscilloscope Vert: 2.5kHz/Div Oscilloscope Trig: Auto Monitor Image: Hi Monitor BW: Nar Monitor Squelch: mid CW Monitor Vol: 1/4 CW

4.3 RF Test Mode

When the EP450 radio is operating in its normal environment, the radio's microcomputer controls the RF channel selection, transmitter key-up, and receiver muting, according to the customer code plug configuration. However, when the unit is on the bench for testing, alignment, or repair, it must be removed from its normal environment using a special routine, called RF TEST MODE. This mode allows bench testing of the radio at various test frequencies across the entire band, at both high and low transmit power (if applicable), at various channel spacings, and with different coded or carrier squelch types. Any customer specific programming in the radio will not be changed or affected by use of the RF Test Mode.

Load

DC on/standby: Standby

Current: 2.5 A

Side Button 1

Side Button 2

Figure 4-2. Side Button Locations

December 3, 2003 HKLN4215A

Performance Checks: RF Test Mode 4-3

To enter test mode:

1. Turn the radio on . Within ten seconds after the self test is complete (self test tone is heard), press SB2 (Side Button 2 in

Figure 4-2) five times in succession. If the self test complete tone is not heard, see Error Codes

information in Chapter 8. Entry into the test mode is indicated by a positive indicator tone followed by a good key chirp (GKC). Upon entering test mode, the radio is in the carrier squelch mode.

2. Press SB1 (Side Button 1) and scroll through and access test environments as shown in

Table 4-2.

3. Press SB2 and scroll through the channel spacin g available as shown in Table 4-3.

4. T urn the channel selector knob to change the test chan nel f or that en vironment as sho wn in Table 4-4.

5. Press the PTT on a test channel to cause the radio to transmit at the test frequency for t he channel.

Table 4-2. Test Environments

No. of

Beeps

1 GKC*

1 BKC*

2 BKC

3 BKC

5 BKC

9 BKC

Description Function

Carrier Squelch RX: unsquelch if carrier detected

TX: mic audio

Tone Private-Line RX: unsquelch if carrier and tone (192.8 Hz) detected

TX: mic audio + tone (192.8 Hz)

Digital Private-Line RX: unsquelch if carrier and digital code (131) detected

TX: mic audio + digital code (131)

Dual-Tone Multiple Frequency

RX: unsquelch if carrier detected TX: selected DTMF tone pair

Unsquelch Open RX: constant unsquelch

TX: mic audio

High-Speed Signaling

RX: unsquelch if carrier detected TX: 1500 Hz tone

* “BKC” means Bad Key Chirp (low-pitched tone), “GKC” means Good Key Chir p (high-pitched only).

Table 4-3. Test Channel Spacing

No. of BKC Channel Spacing

1 25 kHz 2 12.5 kHz 3 20 kHz

HKLN4215A December 3, 2003

4-4 Performance Checks: RF Test Mode

Table 4-4. Test Frequencies

Channel Selector

Switch Position

1 Low Power 8 High Power

2 Low Power 9 High Power

3 Low Power 10 High Power

4 Low Power 11 High Power

5 Low Power 12 High Power

6 Low Power 13 High Power

7 Low Power 14 High Power

Test Channel

TX#1 or #8 RX#1 or #8

TX#2 or #9 RX#2 or #9

TX#3 or #10 RX#3 or #10

TX#4 or #11 RX#4 or #11

TX#5 or #12 RX#5 or #12

TX#6 or #13 RX#6 or #13

TX#7 or #14 RX#7 or #14

VHF R2

(MHz)

UHF R1

(MHz)

UHF R2

(MHz)

UHF R3

(MHz)

146.625 403.625 438.625 465.625

150.775 409.775 443.775 470.775

155.275 415.275 448.275 475.275

160.125 421.125 454.125 480.125

164.475 427.475 459.475 485.475

169.475 433.475 464.475 490.475

173.875 439.875 469.875 494.875

Table 4-5. Receiver Performance Checks

Test Name Communications Analyzer Radio Test Set Comments

Reference Frequency

Mode: PWR MON 4th channel test frequency

Monitor: Frequency error Input at RF In/Out

TEST MODE,

T est Channel 4 carrier squelch output at

PTT to continuous (during the performance check)

Frequency error to be ±200 Hz VHF ±500 Hz UHF

antenna

Rated Audio Mode: GEN

Output level: 1.0m V RF 4th channel test frequency

Mod: 1 kHz tone at

TEST MODE T est Channel 4

carrier squelch

PTT to OFF (center), meter selector to Audio PA

Set volume control to

3.24Vrms

3 kHz deviation

Monitor: DVM: AC Volts Distortion As above, except to distortion As above As above Distortion <5.0% Sensitivity

(SINAD)

As above, except SINAD,

lower the RF level for 12 dB

As above PTT to OFF

(center)

RF input to be <0.30 µV (0.25 µV typical).

SINAD. Noise

Squelch Threshold (only radios with conventional system need to be tested)

RF level set to 1 mV RF As above PTT to OFF

(center), meter selection to Audio PA, spkr/ load to speaker

As above, except change fre-

quency to a conventional sys-

tem. Raise RF level from zero

until radio unsquelches.

out of TEST MODE; select a conventional system

As above Unsquelch to occur at

Set volume control to

3.24 Vrms

<0.25 µV. Preferred SINAD = 6-9 dB

*. See Table 4-4

December 3, 2003 HKLN4215A

Performance Checks: RF Test Mode 4-5

Table 4-6. Transmitter Performance Checks

Test Name Communications Analyzer Radio Test Set Comments

Reference Frequency

Power RF As above As above As above Refer to Maintenance

Voice Modulation

Voice Modulation (internal)

Mode: PWR MON 4th channel test frequency

Monitor: Frequency error Input at RF In/Out

Mode: PWR MON 4th channel test frequency

atten to -70, input to RF In/ Out Monitor: DVM, AC Volts Set 1 kHz Mod Out level for

0.025 Vrms at test set, 80m Vrms at AC/DC test set jack

Mode: PWR MON 4th channel test frequency

atten to -70, input to RF In/ Out

TEST MODE, T est Channel 4 carrier squelch Output at antenna

As above As above, meter

TEST MODE, T est Channel 4 carrier squelch Output at antenna

PTT to continuous (during the performance check)

selector to mic

Remove modulation input

Frequency error to be ±200 Hz VHF ±500 Hz UHF

Specifications Deviation:

VHF, UHF

≥ 4.0 kHz but ≤ 5.0 kHz

(25 kHz Ch Sp).

Press PTT switch on radio. Say “four” loudly into the radio mic. Measure deviation: VHF, UHF

≥ 4.0 kHz but ≤ 5.0 kHz

(25 kHz Ch Sp)

DTMF Modulation

PL/DPL Modulation

*. See Table 4-4

As above, 4th channel test frequency

As above 4th channel test frequency

BW to narrow

TEST MODE,

T est Channel 4 DTMF Output at antenna

TEST MODE,

Test Channel 4 TPL DPL

As above Deviation:

VHF, UHF but

≤ 3.45 kHz

(25 kHz Ch Sp)

As above Deviation:

VHF, UHF but

≤ 1000 Hz

(25 kHz Ch Sp).

≥ 3.05 kHz

≥ 500Hz

HKLN4215A December 3, 2003

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