Motorola R-2200, R-2400 Operator's Manual

@

Communications
Service Monitor

MOTOROLA

test equipment

INC.

OPERATORS'

R-2200/R-2400

MANUAL

,_____

.

68P81069A

79-8

MOTOROLA TEST EQUIPMENT PRODUCTS

LIMITED

(EXCLUDES

WARRANTY

EXPORT SHIPMENTS)

Motorola
Department are warranted by Motorola for a period

This express warranty
Motorola, at its
during the period
tion prepaid.
Transportation

This warranty

In

In the event Motorola elects to repair a defective product by replacing a module
module
remain
PRESS
TY,

Test Equipment Products (herein the

is

extended to the original purchaser only. In the event

option,

will either repair,

of

warranty, and the defective product

Proof

of

purchase

charges for the return

is

void, as determined

(a) The product has not been operated

(b)

The

seals

on

non-user serviceable components

(c)

The

product has been subject to misuse, abuse, damage, accident, negligence, repair

no

event shall Motorola be liable for any special, incidental,

or

subassembly with a new

in

force on the replacement module

OR

ARE

EXCLUDED.

IMPLIED,

INCLUDING

and

evidence
of

the product

in

the reasonable judgement

or

reconditioned replacement module

ANY

"product")

of

or

replace the product providing that Motorola receives written notice specifying the nature

of

date

to

in

accordance with the procedures described

or

subassembly.

IMPLIED

that are manufactured

one

(I)

year from date

is

returned to Motorola at

of

shipment (packing list

Purchaser shall be prepaid by Motorola.

of

Motorola, if:

or

modules

WARRANTY

are

or

consequential damages.

EXCEPT

of

broken;

or

subassembly. Only the unexpired warranty

AS

SPECIFICALLY

OF

FITNESS FOR A

or

shipment against defects

of

or

or

distributed by Motorola Communications

a defect, malfunction, or failure during the period

1313

East Algonquin Road, Schaumburg, IL 60196 transporta-

invoice) must accompany the return

in

the operating instruction;

subassembly, Motorola, at its option, may replace such defective

PARTICULAR

or

alteration.

SET

FORTH

in

material

HEREIN.

PURPOSE

and

SUPPORT SERVICES

For service on your Motorola test equipment in the U.S. contact the Test Equipment Service Center, Schaumburg,

Schaumburg, lllinois 60196

1-312-576-7025. Outside the U.S. contact your nearest Motorola representative.

or

call the Test Equipment Service Hotline: [phone] during normal business hours.

Group

workmanship.

of

the defective product.

of

the warranty product

ALL WARRANTIES EX-

OR MERCHANTABILI-

1313

E.

Algonquin Rd.,

In

Parts

of

warranty,

of

the defect

EPS-30828-0

Illinois call

will

MODULE EXCHANGE PROGRAM

Modular construction

delivery. Outside the U.S. contact your nearest Motorola representative.

The Motorola products described in this
grams stored in
for

Motorola certain exclusive rights
reproduce in any form the copyrighted
grams contained in the

any manner

shall
copyrights, patents
use that arises by operation

of

not

be deemed

the

R2001

semiconductor

without

the express written permission

or

allows field replacement

COMPUTER SOFTWARE COPYRIGHTS

memories

for

copyrighted

computer

Motorola

to
patent

products described in this

grant either

directly

applications

of

law in the sale

of

individual assemblies. Contact the Test Equipment Service Center for pricing and

instruction

or

other

manual may include copyrighted Motorola

media. Laws in the United States and other countries preserve

computer

program. Accordingly, any copyrighted Motorola

of

Motorola. Furthermore, the purchase of Motorola products

or

by implication, estoppel, or otherwise, any license under the

of Motorola, except for the normal non-exclusive, royalty free license

of

a product.

programs, including the exclusive right

instruction

manual may

not

be copied or reproduced in

computer

to

copy

computer

EPS-34440-B

v

pro-

or

pro-

to

Specifications

~,Motorola,

•

Printed in U.S.A. • © 1985 Motorola

subject

Private-Line, and Digital Private-Line are trademarks

to change

without

notice.

Inc.

of

Motorola, Inc.

®

MOTOROLA

Communications
Sector

INC.

R-2200/R-2400 Communications
Service Monitor

M

on

/5'-/.2'-

/0DMHz

CJ

1111

1111

ANAl

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GJ

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MODUlATION

~

<>Motorola, Inc. 1985
All Rights Reserved

Printed in

U.S.A.

68P81069A

I

9/15185

79-B

PHI

®

MOTOROLA

INC.

TABLE

Paragraph
Forward
Section I

1.1.0 General

1.2.0 Specifications
Section 2 - Description

2.1.0 Description

2.2.0 Microprocessor Technology

2.3.0 Multiple Functions

2.4.0 Portability

2.5.0 Durability

2.6.0

2.7.0

2.8.0

2.9.0 Distortion Meter

2.1 0.0 Terminated

2.11.0 Off-The-Air Monitor

2.12.0 Off-The-Air Private Line Frequency Counter

2.13.0 Multipurpose Oscilloscope

2.14.0 Multimode Code Synthesizer

2.15.0 Simultaneous Modulation

2.16.0

2.17.0 Spectrum Analyzer

2.18.0 Two-Way Service Option

OF

CONTENTS

......................................................................

- Introduction

..............................................................

.........................................................

...........................................................

.............................................

....................................................

...........................................................

............................................................

Human
AM/FM
SINAD

Digital/

Engineering

Signal Generator

Metering

RF

Analog Voltmeter

...................................................

......................................................

......................................................

Power Measurement

..................................................

....................................................

..............................................

.....................................

..............................................

............................................

..............................................

..............................................

...............................................

..............................

Page

v

1-2
1-2

2-1
2-1
2-1
2-1
2-1
2-1
2-1
2-1
2-1
2-1
2-2
2-2
2-2
2-2
2-2
2-2
2-2
2-2

Section

3.1.0 Introduction

3.2.0 General

3.3.0 Liquid Crystal Display

3.4.0 Programming Sequence

3 - Operation

...........................................................

3 .1.1 Switches

3 .2.1 Power
3 .2.2 Mode Select Switch

3.2.3 Function Switch

3.2.3.1 Generate Functions

3.2.3.2

3.3.1 Liquid Crystal Displays

3.3.1.1 Analog Meter

3.3 .1.2 Special Display Select Switches

3 .4.1 Generator

3.4.1.1 Frequency Copying
3 .4.1.2 Frequency Stepping

3.4.2 Deviation Limit

3.4.3

Tone

3.4.3.1

3.4.3.2

3.4.3.3 Singletone A

3.4.3.4 Singletone B

3.4.3.5

And

Indicators

...............................................................

Turn

On

......................................................

..................................

......................................................

Monitor

Data
PL
DPL,

AlB

Functions

And

Monitor Frequency

...........................................................

.............................................................

IDPL

Tone

And

................................................

Mode

Bars/Digital

.................................................

......................................................

......................................................

.....................................................

.....................................................

Voice

...............................................

...............................................

Select

...............................................

...............................................

...............................................

.............................................

.......................................

Displays

.................................

......................................

......................................

,

................

3-1
3-1
3-1
3-1
3-1
3-2
3-2
3-2
3-2
3-2
3-2
3-2
3-3
3-3
3-4
3-4
3-4
3-5
3-5
3-5
3-5
3-6
3-6

II

3.4.3.6

3.4.3.7 Tone Remote

3 .4.4 Cancelling Entries

3.5.0 RFSection

3.5.1 RF

3.5.2 Antenna

3.5.3 StepAttenuator

3.5.4 RF Vernier

3.5.5 Generator

3.5.6

3.6.0 Oscilloscope/Modulation Scope
3 .6.1 Intensity Control

3.6.2 Focus Control

3.6.3 Horizontal Control

3.6.4 Horizontal Vernier Control
3 .6.5 Source Switch

3.6.6 Vertical Display Control
3 .6. 7 Vertical Display Vernier

A/B

Variable

....................................................

....................................................

....................................................

............................................................

In/Out

Connector

...........................................................

.....................................................

.........................................................

On/Off

AttenuatorNotZero

....................................................

......................................................

.......................................................

................................................

..................................................

.................................................

..........................................

..................................................

...........................................

..............................................

..............................................

3.6.8 Vertical And Horizontal Position Controls

3.6.9 Triggering Mode Control

3.

6.10 Triggering Level Control

3.6.11 Multi-Purpose Input

3.

7.0 Monitor Section

........................................................

3.7.1 Volume/Squelch Control

3.7.2 Image

Hi/Lo

Control

3. 7.3 Bandwidth Control-

3.7.4 Demodulator Output

3.8.0 Modulation Section

3.8.1 General

3.8.2

One Kilohertz Generator Level Control

.............................................................

.....................................................

3.8.3 External Modulation Input Connector

3.8.4 Microphone Connector

.............................................

.............................................

.................................................

..............................................

.................................................

Wide/Narrow

......................................

.................................................

..................................

...................................

................................................

3.8.5 External Modulation Source Level Control

3.8.6 Code Synthesizer Level Control.

3.

8. 7 Modulation Switch

...................................................

3.8.8 Code Synthesizer Mode Selection

3.9.0

Rear Panel Controls

....................................................

3.9.1 Battery /External DC Power Source

3.9.2 External Power Connector

3.9.3 AC Power Source Fuseholder

3.9.4 DC Power Source Fuseholder

........................................

.......................................

.....................................

.............................................

..........................................

..........................................

3.10.0 Two-Way Service Option Operating System

3.10.1

3.10.2 DTMF Decode

3.10.3 DTMF Encode

DPL/IDPL

3.10.1.1

3.10.1.2

DPLDecode
IDPLDecode

Decode

.................................................

....................................................

...................................................

......................................................

3.10.2.1 Batch DTMF Decode

.............................................

......................................................

3.10.3.1 Real Time DTMF Encode

3.10.3.2 DTMF Batch

Encoder-

.........................................

No

PL

...................................

3.10.3.3 User Defined Timing DTMF Batch Encode
PL

3.10.3.4

3.10.3.5

Frequency Select

Simul

PL

and DTMF Batch Encode

.............................................

..............................

...............................

...............................

..........................

................................

3-6
3-6
3-7
3-7
3-7
3-7
3-7
3-7
3-7
3-7
3-8
3-8
3-8
3-8
3-8
3-8
3-8
3-8
3-8
3-9
3-9
3-9
3-9
3-9
3-9
3-9
3-9
3-9
3-9
3-9
3-9
3-10
3-10
3-10
3-10
3-10
3-11
3-11
3-11
3-11
3-11
3-12
3-12
3-12
3-12
3-12
3-12
3-13
3-13
3-13
3-14
3-14
3-14

-

Section 4 - Operating Instructions

4.1.0 Operation

4.2.0 Power Up

.............................................................

.............................................................

4-1
4-1

III

4.2.1 Parameter Memory

4.2.2 Default Parameters

4.3.0 Generate Operation

4.3.1

Output Level

4.3.2 Mode Select

.........................................................

4.3.3 Simultaneous Generate And Measurement

4.3.4 Testing

Pager Decode And Alert Function

4.4.0 Monitor Operation

4.4.1 Sensitive Monitor

4.4.1.1 Sens Mon With Spectrum Analyzer (R-2400 only)

4.4.2 Power Monitor

4.4.2.1

Pwr

Mon With Spectrum Analyzer (R-2400 only)

4.4.3 Transmitter Distortion Measurements

4.4.4 Measurement

4.4.5 Simultaneous

..................................................

..................................................

....................................................

........................................................

Operation

...............................

.....................................................

....................................................

......................................................

...................................

Of

Transmitted

Oscilloscope I DVM Operation

PL

.......................................

.............................

......................

......................

......................

Section 5 - Applications

5

.1.0 Service Shop Setups

5.1.1 Spectrum Analyzer

....................................................

...................................................

5.1.2 Operating Notes For The R-2400 Service Monitor With Spectrum Analyzer

5.2.0 Receiver Sensitivity Test

5.3.0 Receiver Sensitivity Test 20 dB Quieting

5.4.0 Squelch Sensitivity Test

5.5.0 Audio Power Output Test

5.6.0 Audio Frequency Response

5. 7.0 Modulation Acceptance Bandwidth

5.8 .0 RF Preselector Shape And Bandwidth

5.9.0 Receiver Frequency Adjustment

5.10.0 Basic FM Transmitter Test: Power, Frequency And Deviation
5 .11.0 Transmitter Audio Distortion

5.12.0 Transmitter Audio Frequency Response

5.13.0

AMModulationTest

5.14.0 Cavity And Duplexer Tuning Bandpass Adjustment

12

dB SINAD Audio Distortion

...................................

................................................

..............................................

.............................................

......................................

....................................

.........................................

...........................................

...................................

..................................................

........................

....................

................

5.15 .0 Cavity And Duplexer Tuning Bandpass With Reject Notch - Receive Leg

5.16.0 Cavity And Duplexer Tuning Bandpass With Reject
.0 Desensitization Test In Service Duplexer

5.17

..................................

Notch-

Transmit Leg

....

.......

......

.4-1
.4-1
.4-1

4-1
4-2
4-2

.4-2

4-3
4-3
4-3
4-3
4-4
4-4
4-4
4-4

5-1
5-1
5-1
5-2
5-2
5-2
5-3
5-3
5-4
5-4
5-4
5-5
5-7
5-7
5-7
5-8
5-8
5-9
5-9

Section 6 - Maintenance

6.1.0 Battery Kit Installation

6 .1.1 Battery Charging

6.1.2 Operation From

6.1.3 Shipping Instructions

..................................................

.....................................................

An

External DC Power Source

.................................................

6.1.4 Two-Way Service Option Installation

...........................

....................................

6-1

6-1

6-1

6-2
6-2

IV

FOREWORD

1. SCOPEOFMANUAL

This manual
technicians with similar types
all the service information required for the equipment
described
which occur after the printing date are incorporated by
Instruction Manual Revisions (SMR). These SMR's are
added to the manuals as the engineering changes are in­corporated into the equipment.

and

is

intended for use by experienc€;d

is current as

of

equipment.

of

the printing date. Changes

It

contains

2. MODEL AND KIT IDENTIFICATION

Motorola equipments are specifically identified by

an

overall model number
cases, assemblies
also have kit model numbers stamped

production

applicable schematic diagrams are updated.

As diagrams are updated, information
change
sion column appears in the manual next to the parts list
or,

number,
removed

is

incorporated into a revision column. This revi-

in some cases,

part

or

and

or

engineering change is incorporated, the

on

number,

replaced.

on

the nameplate. In most

kits which make

the diagram.

and

It

description

up

the equipment

on

them. When a

about

lists the reference

of

the

the parts

the original supplier under the direction
Test Equipment Repair Center. Out-of-warranty service
is

performed
petitive rates. Customer satisfaction
surveyed by reply cards returned with repaired in­struments.

The Motorola Test Equipment Repair Center also
provides a convenient telephone troubleshooting ser­vice. Frequently, a user technician can troubleshoot a
piece

of
under the direction
Repair Center via telephone. Required replacement
parts are then immediately shipped
reducing shipping time
telephone troublehsooting contact the Motorola Test
Equipment Repair Center toll free

All other inquires
calibration
Motorola Area
Motorola Test Equipment Repair Center, process the
necessary paperwork
contact you to expedite the

on

equipment

and

Parts

a time

repairs should be directed

and

materials basis at com-

and

isolate the defective components

of

the Motorola Test Equipment

and

and

requests for test equipment

Office. They will contact the

and,

if

necessary, have the Center

repair~

of

the Motorola

is

continually

to

the user thereby

servicing costs. For

at

[phone].

to

the

4. REPLACEMENT PARTS ORDERING

3. SERVICE

The Motorola Test Equipment Repair Center

charged with the service responsibility for all test equip-

ment supplied by the Motorola Communications Sec­tor. The center maintains a stock
replacement parts and a complete library
formation for all Motorola test equipment.

Most in-warranty repairs are performed
center. Exceptions include repairs
not manufactured by Motorola which are performed by

of

original equipment

of

service in-

on

some equipment

at

the

is

Motorola maintains a number
strategically located throughout the United States.
These facilities are staffed
tify

part

numbers,

maintenance

products.

Orders for all replacement parts should be sent
the nearest area parts
When ordering replacement parts the complete iden­tification number located
included.

and

repair

to

process parts orders, iden-

and

otherwise assist in the

of

Motorola Communications

and

service center listed below.

on

the equipment should be

of

parts offices

to

v

68P81062E66-0

5. ADDRESSES

5.1 GENERAL OFFICES

MOTOROLA

Communications and

Electronics Inc.

Communications & Electronics Parts

1313

E. Algonquin Rd.,

Schaumburg, Illinois

Phone: [phone]

5.2 U.S. ORDERS

60196

PACIFIC

P.O.
San
Phone:
TWX: 910-335-1516

GULF

1140 Cypress Station
P.O.
Houston, Texas
Phone: [phone]
TWX:

SOUTHWESTERN

Box 85036

Diego, California 92138

714-578-8030

STATES

Box 73115

910-881~6392

AREA

77090

PARTS

AREA

PARTS

WESTERN

1170 Chess Drive, Foster City

San Mateo, California 94404

Phone: [phone]

TWX: 910-375-3877

MIDWEST

1313

E. Algonquin Rd
Schaumburg, Ill.
Phone: [phone]
TWX:

MID-ATLANTIC

7230 Parkway Drive
Hanover, Maryland
Phone: [phone]

TWX: 710-862-1941

EASTCENTRALAREA

12995 Snow Road
Parma,
Phone: [phone]

TWX: 810-421-8845

EASTERN

85

Harristown Road
Glenrock, New Jersey
Phone: [phone]
TWX:

AREA

AREA

910-693-0869

PARTS

60196

AREA

Ohio 44130

AREA

710-988-5602

PARTS

PARTS

PARTS

20176

PARTS

07452

SOUTHWESTERN

P.O.

Box 34290

3320

Belt Line Road
Dallas, Texas 75234
Phone: [phone]
TWX:

910-860-5505

SOUTHEASTERN

P.O.

Box

368
Decatur, Georgia 30031
Phone: [phone]

TWX:

5.3

CANADIAN ORDERS

810-766-0876

MOTOROLA

National Parts Department
3125

Steeles Avenue East
Willowdale,
Phone: [phone]
TWX:
Telex: 06-526258

5.4 ALL COUNTRIES EXCEPT U.S. AND CANADA

Ontario

610-491-1032

MOTOROLA,

International
1313

E. Algonquin Road
Schaumburg, Illinois
Phone: [phone]
TWX:
Telex: 722443
Cable:

Parts

910-693-0869
MOTOL

LTD.

INC.

PARTS

AREA

AREA

M2H 2H6

Dept.

PARTS

PARTS

60196 U.S.A.

ROCKY MOUNTAIN

20 Inverness Place E.
Englewood,
Phone: [phone]
TWX: 910-935-0785

68P81062E66-0

CO 80112

AREA

PARTS

VI

MOTOROLA TEST EQUIPMENT PRODUCTS

AUTHORIZED

Motorola C & E

Test Equipment Service Center-East

1313

E. Algonquin
Schaumburg, IL 60196
1-800-323-6967

1-312-576-7025 (Illinois Only)
MAMS:
TTY: 910-693-0869

Motorola C & E, Inc.

Hawaii Service
99-1180 lwaena Street
Aiea,

1-808-487-0033
TTY: 63212

Motorola Australia Pty.

Test Equipment Service
666

Mulgrave, VIC
Melbourne
Phone: [phone]
Telex: 32516

Cable:

MAMS:

Motorola GmbH

F and V ABT. Frachtzentrum
6000 Frankfurt Main/Flughafen

West Germany

Attn:

Phone: [phone]
Telex: (0) 4182761

NAGOU

HI

96701

Wellington Road

MOTOCOM

FEMEL

METEC

Parts

Road

Center

Ltd.

Center

3170

MOTOCOMA

MELBOURNE

MOT

D

AA

FZF

WARRANTY SERVICE CENTERS

Motorola S.A.

Test Equipment Service Center

14,

Allee du Cantal
91020 Evry Cedex
Phone: (6)
Telex: .600434F
MAMS:

Motorola Cauda, Ltd.

Test Equipment Service Center

3420 Pharmacy A venue
Unit
Scarborough, Ontario MIW 2P7
Phone: [phone]

TTY: 610-492-2713

MAMS: NAWIL

Motorola South Africa (Pty.) Ltd.

Motorola House
5th

Street
P.O.
Wynberg
Phone: [phone]
Telex.;
CABLE:MOTOROLAJOHANNESBURG
MAMS:

Test

2333B. Utah Avenue

Segundo, CA

El

1-213-536-0784

077.790.25

FAFEV

11

Box 39586

422-070 SA

FESAF

Equipment

CE

1455

MOTEV

Service Center-West

90245

VII

~

~

c

worldwide support of
communications systems

MOTOROLA

Communications

Sector

INC.

SAFE HANDLING

OF

CMOS

INTEGRATED CIRCUIT DEVICES

Many

of

the integrated circuit devices used in com­munications equipment are
tary Metal
high open circuit impedance,
to damage from static charges. Care must be taken in
handling, shipping,
assemblies in which they are used.

CMOS IC inputs, the protection is effective only against
overvoltage in the hundreds
encountered in
elements distribute static charges and load the
circuits, decreasing the chance

Oxide Semiconductor) type. Because

Even though protection devices are provided in

an

operating system. In a system, circuit

of

the CMOS (Complemen-

CMOS ICs are vulnerable

and

servicing them

of

volts range such as are

of

damage. However,

of

and

CMOS

their

the

CMOS circuits can be damaged by improper handling

of

the modules even in a system.

To

avoid damage

handling, shipping,

1.

Prior

to
particularly after moving within the service area,
momentarily touch
grounded surface. This will discharge any static charge
which may have accumulated
servicing.

to

circuits, observe the following

and

servicing precautions.

and while servicing a circuit module,

both hands

to

a bare metal earth

on

the person doing the

2. Whenever possible, avoid touching any elec­trically conductive parts
hands.

3.

Normally, circuit modules can be inserted
removed with power applied
check the

tions
diagram
tice.

carpeted areas, dry environments,
clothing (silk, nylon, etc.) because they contribute
static buildup.

be grounded.
equipment to the circuit module

INSTALLATION and MAINTENANCE sec-

of

the manual as well as the module schematic

to

insure there are no objections

4. When servicing a circuit module, avoid

5.

All electrically powered test equipment should

Apply

of

the circuit module with your

to

the unit. However,

to

this prac-

and

certain types

the ground lead from the test

before connecting the

test probe. Similarly, disconnect the test probe prior

removing the ground lead.

6.

If

a circuit module is removed from the system,
it is desirable
sheet

of

through 1

to

lay it

on

a conductive surface (such as a

aluminum foil) which is connected

OOk

of

resistance.

to

ground

or

of
to

to

NOTE
Wearing
(Motorola No. RSX-4015A) will minimize
static buildup during servicing.

When wearing Conductive Wrist
be

~areful

The good ground provided by the wrist
strap will also increase the danger
lethal shock from accidentially touching
high voltage sources.

©Motorola, Inc.

All Rights Reserved
Printed in

U.S.A.

Conductive

WARNING

near sources

1982

of

techni<§AI

Wrist

high voltage.

Strap

Strap,

1301

E.

Algonquin Road,

of

7.

grounded.

8.
components,
necessary in the replacement
device), be sure
described in procedure
exist across the
ly one hand be used
CMOS device

wliUng

Schaumburg,

WARNING

If

the aluminum foil

to

ground, be cautious

trical shock from contacting the foil

same time as other electrical circuits.

When soldering, be sure the soldering iron

Prior

to

connecting jumpers, replacing circuit

or

touching CMOS pins (if this becomes

to

human

if

and

associated

:~e~vica~

II.

60196

is

connected directly

of

possible elec-

at

the

of

an

integrated circuit

discharge any static buildup as

1.

Since voltage differences

body, it is recommended

it is necessary

board

to

touch pins

wiring.

68P81106E84-C

12/10/82- PHI

that

on

is

can

on-

the

9.

When
device, leave
ductive
cuit module.

pulse generators, etc.) should be connected

foam

10. All low impedance test equipment (such as

replacing a

the

device in its metal rail container

until it is

CMOS

to

be inserted

integrated circuit

into

the

printed cir-

to

or

con-

CMOS

device inputs
cuitry. Similarly, such low impedance equipment should
be disconnected before power

11. Replacement modules shipped separately from

the

factory will be packaged in a conductive material.

Any

modules being
another
(aluminum foil

CONDUCTIVE
modules.

after

should be

may

MATERIAL

power is applied

is

turned

transported

wrapped

be used).

in a simlar material

NEVER

for packaging these

to

off.

from

the

CMOS

one

area

USE NON-

cir-

to

2

A

SECTION I

Figure 1-l. Communications Service Monitor

1-1

SECTION!

SPECIFICATIONS

1.1.0 GENERAL This section lists the physical, electrical
and input/output characteristics of the Communications
Service Monitor shown in figure 1-1.

1.2.0 SPECIFICATIONS

Modes: AM/FM Generate, Monitor Power Monitor,

Voltmeter DC,
Load, Oscilloscope

Signal Generator Mode

FREQUENCY

Range:

Resolution:

Accuracy: Same as

OUTPUT

(16

dB

in

10 dB steps over 8

Frequency Range:

AMPLITUDE MODULATION

Fre~uency

variable

ranges)

Range:

Accuracy:

PURITY

Spurious:

Harmonics:

FREQUENCY

MODULATION

Deviation: 0

FM Noise:

External/Internal

Modes:

xternal

Range: 0
Range:,

Input:

Modes:

External/Internal

200kHz
100Hz

.05uV

to

40uV to 1V (high level output)

±2

dB over the

± 2 dB leveling over the

freq. range ± 3 dB leveling over the

999.9999
operating temperature range

-40

dB

-15

dB (step attenuator = 0 dB, 0 dBm out)

to

50

100Hz
5Hz

to

External, internal

to

50% from 1

100Hz-10kHz(±
Approx.
Internal, external, microphone
simultaneously

Monitor Mode

Frequency Range:

Resolution:

Accuracy: Same as

Frequen~

In icator:

Sensitivity:

(Over the 3 MHz

999.9999 MHz range)
Spurious Response:

FM

DEVIATION

MEASUREMENT

AM

MODULATION MEASUREMENT

RF

Frequency Fhnge: 1 MHz to 1000 MHz

Range:

Accuracy:

Range:

Ace

!;I

WATTMETER

LOAD

AND

Power Range:

Accuracy:

Protection: over temp. and over power alarms

3 MHz to 999.9999 MHz useable
with

reduced sensitivity.

100Hz

Error

Digital Display of frequency error and bar graph

1.5

uV for 10

to

KHz mod. acceptance)
5 uV for
SINAD (wideband ± 100 kHz mod. acceptance)
5 uV for

-40

dB

0

dB

image ±

-10

dB

1,

10,

100kHz

±

5%

of

deviation, ±

0

to

100%

±5%

racy:

of

.5

watt to 125 watt

±10%

RMS, AC, RF Wattmeter and

to

999.9999 MHz

time

base

800uV (low level output)

.1

uV to

1V

range of output level

200

kHz to

MHz frequency range ± 1

kHz peak

10kHz

150mV for

Typical

at

or

microphone (any or all)

to

500 MHz

1 dB)

50%

BNC connector

time

base

dB

EIA SINAD (narrowband ± 7

10

dB

EIA

10

dB

EIA SINAD AM

21

.4

MHz

L.O.

harmonic ± 10.7 MHz

full scale

reading ± 100

10% of reading

full scale

Hz,

500 Hz

ref.

50

or

kHz

750
750

dB

25° C

all

to

100 KHz

to

MHz
MHz

over the

50

to

75

kHz

kHz

to

General

OSCILLOSCOPE

Freq. Response:

EXTERNAL

DIGITAL VOLTMETER

AC Bandwidt :

CODE SYNTHESIZER &

Frequency Range:

Special Function:

Input level range:

(1

kHz using code

synthesizer for tone)

Input Level Range:

Standard TCXO:
Optional OCXO:

Size:

2.5

in diagonal

DC

to

.5

MHz

VERTICAL

INPUT

Ranges: 1us,

Sweep Rates: division

Sync: Automatic or adjustable level triggering

Readout: 3 digit Autoranging

DC

Accuracy: ±

AC

Accurac~:

AUDIO GEN.

Resolution:

Accuracy:

Output

Level:
Meter

SINAD

Accuracy: ± 1

Distortion:

Range:

Accuracy

PL Counter

Range:

Resolution:

TIME BASE

10

mV,

100

10us, 100us, 1ms, 10ms, 100ms per

1%

F.S.

±5%

50

50 Hz

0.1
±.01%

PL,
variable, tone remote
0

to

.5 V to

0

to
.5
5%

60

0.1

Aging ± 1 x

+55

Aging ± 1 x

+ LSD

F.S.

Hz to

10kHz

to

9.999 kHz

Hz

50

to

DPL, DPL invert, 2 tone sequential, 2 tone

3 RMS @ 600 Ohms

10

VRMS

dB @ 12

35

dB

V to 10 VRMS

of

F.S.

from

to

270Hz

Hz

c

Power and Environmental

AC: 90

Optional Battery:

Battery Weight: 8 lbs.

Temp. Range:

DC:

Dimensions:

Weight:

to

130,

+ 11.0
12
operation

0

7Vz"

(19.0
30

180

to + 17

V battery provides approx. 1 hr. continuous

(3.63

kg)

to

+55

C
high x 12'/z" wide x 14" deep
em x 31.8 em x

lb. excluding battery pack

R-2400 Spectrum Analyzer

Dispersions:

Dynamic Range:

Measurement Range:

Display Range: Level: 6 divisions

Dynamic Range: Noise desensitization:

Audio

Monitoring: Simultaneous Monitor function with spectrum

1,

.1,

.01

MHz/div

55

dB

min.

-100

dbm
using internal
Accuracy:
below
Useable
uncalibrated)

Frequency: 8 divisions
dispersions of

dispersion and
1 MHz/div. dispersion and 1 MHz offset.

analyzer display

to + 27

+/-5

800 MHz);

to

+51

(3

dB

point)

mV, 1

V,

10 V per division

1,

10,

100,

1000Hz, 1 Hz

dB

SINAD

1%

to

50%

10-6

Yr Temp. ± 1 x

10-6

Yr Temp. ± 5 x

to

250 V ac,

V de

35.6

em)

dbm

at

RF

db

dbm at

1,

25

of

Antenna connector

step attenuator

absolute (at frequencies

+/-2

db linearity.

RF

at

10

db

per division

with

.1,

and

.01

-55

KHz freq. offset;

received signal.

300

volts full scale

1000Hz

to

9999Hz

10-6

from 0

10-6

max.

50/60Hz

(13.6

kg)

In/Out conn. (level

switch

selectable

MHz per division

dbc

at

.01

MHz/div.

-70

dbc

to

at

1-2

SECTION2

DESCRIPTION

2.1.0 DESCRIPTION
The R-2200 and R-2400 are test instruments designed

and manufactured by Motorola to perform the most
commonly used tests
ment. Rugged and portable, the Communications Serv­ice

Monitors are designed for technician productivity.

2.2.0

2.3.0 MULTIPLE

2.4.0 PORTABILITY

2.5.0

MICROPROCESSOR TECHNOLOGY

The R-2200 and R-2400 Communications Service Moni­tors use advanced engineering design based upon a
Motorola
ture liquid crystal displays (LCD) and a sealed mem­brane keyboard for easy and accurate entry
LCD's show exactly what displays and functions are ac­tive at any time. The displays change as you switch
monitor functions, and prevent you from selecting an
invalid readout.

The microprocessor design permits a wide variety of
service applications. The
ing tests which require:

Modulation Oscilloscope
"Off-the-Air" PL Counter
Multimode Code Synthesizer

ACIDC

General Purpose Oscilloscope
SINAD
Distortion Meter
RF

as well as the traditional service monitor functions
SIGNAL GENERATION, FREQUENCY ERROR and
MODULATION measurements. In addition, the
R-2400 provides a spectrum analyzer display while
simultaneously monitoring the received signal.

Weighing under
engineered for ease
battery allows 1 hour continuous operation. Time
saved since the technician has to transport less equip­ment and does not have to take time to unpack, hook-up,
disconnect and repack additional equipment.

The R-2200 and R-2400 are field environment tough and
meet the shock and vibration portions
tion RS152B. The units have been subjected to acceler­ated life testing, during the design stage, to ensure the
best possible design and reliability. The Mylar covered
keyboard

M-6800 series microprocessor. The units fea-

Digital Analog Voltmeter
Meter

Wattmeter

DURABILITY

is

sealed against moisture, dirt, dust and oil.

on

radio communications equip-

of

data. The

FUNCTIONS

R-2200

30 lbs. (13.6 kg), the unit's form factor

of

carrying. The optional internal

is

capable

of

of

EIA

perform-

specifica-

2.6.0 HUMAN ENGINEERING
The

R-2200 and R-2400 are human engineered. The

membrane keyboard with audible feedback ensures ac-

curate data entry. Front panel controls are grouped by

function for simple operation. The microprocessor con­trolled LCDs provide autoranging analog and digital

displays.

2.7.0 AM/FM
The built-in general purpose signal generator provides

continuous coverage

mobile spectrum for receiver testing. Many forms
external and internal modulation can be simultaneously
impressed on the carrier signal for actual composite sig-

nals. The frequency range
from 200KHz to 1

to 1 VRMS provides sufficient amplitude to get through

misaligned tuners and receivers and

tive when changing a receiver's frequency. The high
level, calibrated
quency range

2.8.0

SINAD METERING

A comprehensive check

made with a

bars and digital display
whenever that measurement mode
is

simple with
measurements can then be accomplished without the
need for a separate signal generator, SINAD meter

of

is
is

distortion analyzer.

2.9.0 DISTORTION METER
The

distortion
audio stage quality measurement without a separate sig­nal generator
resolution than an oscilloscope to ensure the radio under
test meets all distortion specifications.

2.10.0 TERMINATED RF POWER MEASUREMENT
RF

power
vice Monitor
RF

load dissipates up to
transmitter should be keyed into the unit
power transmitter
time threatening overheating
circuitry, the audible alarm sounds and the LCD's dis­play changes to read
TEMP",
strument

of

tion

modulation, all at the same time.

SIGNAL GENERATOR

of

the HF,

GHz

in 100Hz steps. The output of up

output

of

the Communications Service Monitor.

SINAD

only

meter

or

distortion meter.

is

measured when the Communications Ser-

is

in the power monitor mode. The built-in

thus warning the technician to de-key. The in-

is

further enhanced by the simultaneous indica-

RF

power output, carrier frequency error and

is

available over the entire fre-

of

measurement. The analog meter

of

SIN

two

provides receiver

125

is

keyed into the unit for a prolonged

"OVER

VHF,

of

the

RF

signal generator

is

especially effec-

receiver performance can be

AD

appear automatically

is

selected. Hook-up

connections

It

also provides higher

watts.

If

a higher powered

of

the power measuring

POWER"

and

UHF

required

or

transmitter

or

if a lower

or

·"OVER

land

of

is

and

or

L

2-1

2.11.0 OFF-THE-AIR MONITOR
The

1.5

microvolt sensitivity
Service Monitor receiver allows off-the-air monitoring
and measurement
deviation to 1000 MHz. A variable squelch allows weak
signals to be monitored, but can be set tighter to ensure
the

proper

cy.

The off-the-air monitor function enables frequent
parameter
system
down. Bandwidth can be set
signal location
maximum sensitivity and selectivity.

2.12.0
COUNTER

Identifies the PL frequency

allow complete testing

2.13.0 MULTIPURPOSE OSCILLOSCOPE
This general purpose scope

in

two-way communication servicing. Use it for viewing
modulation signals (either internally
ated). detection
tortion. and general purpose signal tracing and trou­bleshooting.

2.14.0 MULTIMODE CODE SYNTHESIZER
The Communications Service Monitor generates PRI-

VATE
codes
tone-remote signalling tones. All codes are available at
the

"MOD
modulate the
necessity
general servicing, setting transmitter deviation,
checking

2.15.0 SIMULTANEOUS MODULATION
Modulation is simultaneously available from an internal

I KHz tone
and from external inputs. The external modulation can
be voice from a standard Motorola mobile radio micro­phone (which plugs into the front panel

ment), as well as a signal applied to the external BNC
input. Separate controls are provided for independently

setting the levels

and the external modulation
tone
SIN
vides external access to all

2.16.0 DIGITAL/ANALOG VOLTMETER
The

service capability.

signal-to-noise ratio for measurement accura­checks without leaving the shop, thus spotting

degradation

OFF-THE-AIR

LINE

(DPL),

OUT"

of

using separate generators and oscillators for

tone

is

a convenient source

AD

measurements. A

built-in voltmeter provides circuit and power supply

of

transmitter frequency

early

or

wide band FM;

PRIVATE

of

of

asymmetric modulation

tones

(PL),

two-tone sequential paging codes and

jack, as well as being used internally to

RF

signal generator. This eliminates the

remote base control lines.

generator, a multimode

of

the I KHz

AC

voltage reading are RMS values.

of

the

Communications

error

and

keeping service costs

"WIDE"

of

any radio under test to

PL subaudible tone signalling.

is

ideal for waveform analysis

DIGITAL

tone, the code synthesizer,

sourc~s.

of

modulation for making

"MOD

of

the modulation signals.

for off-channel

or

"NARROW"

LINE

FREQUENCY

or

externally gener-

or

PRIVATE

code

synthesizer,

of

The

OUT"

connector pro-

audio dis-

the instru-

I KHz test

and

for

LINE

or

for

2.17.0

2.18.0

SPECTRUM

The R-2400 includes a spectrum analyzer which pro­vides frequency spectrum display while allowing the
user

to

monitor the audio
signal. Three dispersions
available.
used. The range
attenuator is in the 0 dB position
graticule)
are
the step attenuator, the range
becomes +
not exceed the maximum input level
dBm)
RF
sampled
tenuation
justed with the step attenuator.

SERVICE
The TWO-WAY SERVICE

series
compatible with any R-2200 (or R-2400) via
option module slot
following functions:

Some
cludes OFF-THE-AIR decoding
codes. The Two-Way Service Option will decode only
valid
With the
R-2400), the service technician has a "failsafe opera­tion"
performing a complete

The option card also provides multiple methods in which
to encode DTMF tones. The most basic form
DTMF, a real time encoder, is one selection possible. There
are also encoding formats available for operator selection
which include:
user programmable timing, and 3) simultaneous PL and
DTMF encode.

A last function
In this mode the service monitor will decode DTMF tones
OFF-THE-AIR or via the modulation input BNC connec­tor. This option will decode and store

With
Decode built-in, the R-2210
tions Service Monitors qualify as a complete signalling
simulator, capable
system check
mon

In

to

10

dB each. When

27

at

the

signal

that

and

to

THE

FIRST

OPTION

of

new option cards. This

TWO-WAY SERVICE

of

the

DPL

codes

DPL

making it easier

DPL,

DTMF

signalling formats.

ANALYZER

of

the programmed frequency

of

I,

.1,

and

.01

MHz/div

"Anlzr Sens Mon", the "Antenna"

of

power levels displayed when the step

is

-40

-100 dBm (noise floor). Vertical divisions
70

dB attenuation

of

power levels displayed

dBm

to

-30

dBm. Care must be taken

Antenna

displayed. The required

maintain

major

1)

of

on

input. In "Anlzr

is

applied to the

an

on-screen display can be ad-

IN A SERIES/TWO-WAY

and

DPL

DECODE
DTMF
DTMF

encoder, standard in every R-2200 (or

I6 digit storage (BATCH ENCODE), 2)

the Two-Way Option is DTMF Decode.

the land mobile industries most com-

ENCODE

DECODE

features

and

will not display invalid codes.

and

DPL

and

the standard

of

performing a complete signalling

"RF

OPTION

comes equipped with the

of

the

less time consuming when

system check.

and

R-2410 Communica-

is

of

Pwr

In/Out"

amount

is

PC

board, plug in

OPTION

DPL

of

DPL

up

to I6 DTMF digits.

PL

port

dBm (top

added using

.5

watt ( +

Mon", the

port

of

the first in a

an

Decoder in-

or

of

generating

Encode

are

is

to

27

is

at-

open

IDPL

and

2-2