Motorola R-2400 User manual

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Gommunications
$ervice Monitor
OPERATORS' MANUAL
R-2200/R-2400
\-
68P81069A79-B

I
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MOTOROLA TEST EQT'IPMENT PRODUCTS
LIMITEDWANNANTY
(EXCLUDES EXPOnT SHTPMENTS)
Motorota Test Equipment Products (herein thc "product") that are manufactured or disrributed by Motorola Communications Group parts
Department are warranted by Motorola for a pcriod of onc (t) ycar from datc of shipment against defects in material and workmanship.
This express warranty is extendcd lo the original purchaser only. tn thc cvcnt of a dcfect, matfunction, or failure during the period of warranty,
Motorola, at its option, will cither repair, or replace the product providing that Motorola receives written notice specifyirig rhe nature of rhe defect
during thc period of warranty, and thc defective product is rcturned to Motorola at l 3 l 3 East Algonquin Road, Schaumbrirg, lL 60l % transpona-
tion prepaid. Proof of purchase and evidence of date of shipment (packing list or invoice) muit actompany the return oiihe defectiue product.
Transportation charges for the return of the product to Purchascr shall be prepaid by Motorola.
This warranty is void, as detcrmincd in the rcasonable judgemcnt of Motorola, if :
(a) The product has not been opetated in accordance with the procedures described in thc operaring instruction;
(b) The seals on non-user serviceable components or modules arc broken;
(c) The product has been subject to misuse, abusc, damage, accidcnt, negligence, repair or alteration.
ln no cvent shall Motorola be Iiable for any spccial, incidental, or consequential damages.
ln the event Mororola elects to repair a defective product by replacing a module or subassembly, Motorola, at its option, may replace such defcctivc
module or subassembly with a new or reconditioned replaccment module or subassembly. Only the unexpired warranty of thl wirranty product will
remain in force on the replacement module or subassembly. EXCEPT AS SPECIFICALLY SET FORTH HEREIN. ALL wARRAivflfS fx-
PRESS OR IMPLIED, INCLUDING ANY IMPLIED WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILI.
TY, ARE EXCLUDED.
EPS-30828-O
SUPPORT SERVICES
For service on your.Motorola test e-quipment in the.U.S. contact the Test Equipment Service Center, Schaumburg, l3l3 E. Algonquin Rd.,
Scha^umburg, -lllinois. 60!% o1 call the Test Equipment Service Hotline: 8ffi/323-696'l during normal businEis hours. lri lllinois cali
l-312-576-7025. Outside the U.S. contact your nearest Motorola representative.
MODULE EXCHANGE PROGRAM
Modutar construction of the R2001 allows field re-placement of individual assemblies. Contact the Tesr Equipment Service Center for pricing and
delivery. Outside the U.S. contact your nearest Mbtorola representative.
COMPUTER SOFTWARE COPYRIG HTS
The Motorola products described in this instruction manual may include copyrighted Motorola computer pro-
grams slored in semiconduclor memories or other media. Laws in the United States and other countries preserve
for Motorola certain exclusive rights for copyrighted computer programs, including the exclusive right to copy or
reproduce in any form the copyrighted computer program. Accordingly, any copyrighted Motorola computer pro-
grams contained in the Motorola products described in this instruction manual may not be copied or reproduced in
any manner without the express written permission of Motorola. Furthermore, the purchase of Motorola products
shall not be deemed to grant either directly or by implication, estoppel, or otherwise, any license under the
copyrights, patents or patent applicaiions of Motorola, except tor the normal non-exclusive, royalty free license to
use that arises by operation of law in lhe sale of a product.
EPS-34440-B
Specillcetlonr cubfcct to change without notice.
O, Motorola, Prlvtto-Line, and Dlgital Privalc-Line are tradomarks of Motorola, lnc.
I Prlnted in U.S.A. f @ 1985 Motorola lnc.

@ ',to,To',o,LA tNc.
Communications
Sector
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R-2200/ R-2400 Com m u n icat ions
Service Monitor
@Motorola, Inc. 1985
All Rights Reserved
Printed in U.S.A.
68PE1069A79-8
9/15/85 PHI
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@ frio'.o*oLA t*c'.
TABLE OF CONTENTS
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Paragraph Page
Forward ..........v
Section I - Introduction
1.1.0 General ........1-2
1.2.0 Specifications..... ....1-2
Section 2 - Description
2.1.0 Description . .. ..2-l
2.2.0 MicroprocessorTechnology.... .....2-l
2.3.0 MultipleFunctions ....2-l
2.4.0 Portability .....2-l
2.5.0 Durability ......2-l
2.6.0 Human Engineering . . .Z-l
2.7.0 AM/FM Signal Generator . . . .2-l
2.8.0 SINADMetering ......2-l
2.9.0 DistortionMeter. .....2-l
2.10.0 TerminatedRFPowerMeasurement .... ...2-l
2.11.0 Off-The-AirMonitor ........2-2
2.12.0 Off-The-Air Private Line Frequency Counter . . . . . .2-z
2.13.0 MultipurposeOscilloscope..... .....2-2
2.14.0 MultimodeCodeSynthesizer.. ......2-z
2.15.0 SimultaneousModulation.... ......2-2
2.16.0 Digital/AnalogVoltmeter..... ...,.2-2
2.17.0 SpectrumAnalyzer ....2-z
2.18.0 Two-WayServiceOption .....2-2
Section 3 - Operation
3.1.0 Introduction .....3-l
3.1.1 SwitchesAndlndicators .....3-l
3.2.0 General .... .....3-l
3.2.1 PowerTurnOn ......3-l
3.2.2 Mode Select Switch . . . . i. .. .3-l
3.2.3 FunctionSwitch ......3-z
3.2.3.1 GenerateFunctions .....3-z
3.2.3.2 MonitorFunctions ......3-z
3.3.0 Liquid Crystal Display Mode Select . . .3-z
3.3.1 LiquidCrystalDisplays .....3-2
3.3.1.1 Analog Meter Bars,/Digital Displays . . .3-z
3.3.1.2 SpecialDisplaySelectSwitches.... ....3-z
3.4.0 Programming Sequence .. . .. . .3-3
3.4.1 GeneratorAndMonitorFrequency ........3-3
3.4.1.1 FrequencyCopying .....3-4
3.4.1.2 FrequencyStepping .....34
3.4.2 Deviationlimit ......34
3.4.3 ToneData.. ...3-5
3.4.3.1 PL .. .....3-5
3.4.3.2 DPL,IDPL ......3-5
3.4.3.3 SingletoneA .... .......3-5
3.4.3.4 SingletoneB.... .......3-6
3.4.3.5 A/BToneAndVoice ...3-6
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3.4.3.6 A,/BVariable.... ......3-6
3.4.3.7 ToneRemote.... ......3-6
3.4.4 CancellingEntries ....3-7
3.5.0 RFSection.r..i. ......3-7
3.5.1 RFln/OutConnector ......3-7
3.5.2 Antenna .....3-7
3.5.3 StepAttenuator.... .......3-7
3.5,4 RF Vernier . . .3-7
3.5.5 GeneratorOn/Off ........j-7
3.5.6 AttenuatorNotZero .......3-7
3.6.0 Oscilloscope/ModulationScope ......3-8
3.6.1 IntensityControl '...3-8
3.6.2 FocusControl ... ...3-8
3.6.3 HorizontalControl ........3-8
3.6.4 HorizontalVernierControl ....'..3-8
3.6.5 SourceSwitch .......3-8
3.6.6 VerticalDisplayControl . '..3-8
3.6.7 Vertical Display Vernier . . . .3-8
3.6.8 Vertical And Horizontal Position Controls . . . . . .3-8
3.6.9 TriggeringModeControl .... .....3-9
3.6.10 TriggeringlevelControl ..... ....3-9
3.6.11 Multi-Purpose Input . ......3-9
3.7.0 MonitorSection ........3-9
3.7.1 Volume/SquelchControl .'..3-9
3.7.2 lmageHi/LoControl i..r.. .......3-9
3.7.3 BandwidthControl-Wide/Narrow... ...'.3-9
3.7.4 Demodulatoroutput .......3-9
3.8.0 ModulationSection..... ......3-9
3.8.1 General .... ...3-9
3.8.2 OneKilohertzGenerator LevelControl ..... .....3-9
3.8.3 External Modulation Input Connector . . . . .3-9
3.8.4 MicrophoneConnector ......3-10
3.8.5 ExternalModulationSourceLevelControl ..... ..3-10
3.8.6 CodeSynthesizerlevelControl..... ......3-10
3.8.7 Modulation Switch . . .3-10
3.8.8 CodeSynthesizerModeSelection ... ......3-10
3.9.0 RearPanelControls... .......3-ll
3.9.1 Battery/External DC Power Source .......3-ll
3.9.2 External Power Connector . . .3-l I
3.9.3 AC Power Source Fuseholder . . . . . .3-l I
3.9.4 DC Power Source Fuseholder . . . . . .3-l I
3.10.0 Two-Way Service Option Operating System . . . . . . .3-12
3.10.1 DPL /IDPL Decode .......3-12
3.10.1.1 DPLDecode ....3-12
3.10.1.2 IDPLDecode.... .....3-12
3.10.2 DTMFDecode ......3-12
3.10.2.1 Batch DTMF Decode . . .3-12
3.10.3 DTMFEncode ......3-13
3.10.3.1 RealTimeDTMFEncode .....3-13
3.10.3.2 DTMF Batch Encoder - No PL . . . . .3-13
3.10.3.3 UserDefinedTiming DTMFBatchEncode .... ....3-14
3.10.3.4 PL Frequency Select . . .3-14
3.10.3.5 SimulPlandDTMFBatchEncode .... ....3-14
Section 4 - Operating Instructions
4.1.0 Operation .. . ... .4-l
4.2.0 PowerUp... ....4-l
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4.2.1 Parameter Memory . . .4_l
4.2.2 DefaultParameters..... ....4_l
4.3.0 Generateoperation..... ......4_l
4.3.1 Outputlevel ........4-l
4.3.2 ModeSelect. ........4_z
4.3.3 Simultaneous Generate And Measurement Operation . . . .4_z
4.3.4 TestingPagerDecodeAndAlertFunction.... ....4_2
4.4.0 MonitorOperation .....4_3
4.4.1 SensitiveMonitor ....4-3
4.4.1.1 Sens Mon With Spectrum Analyzer (R-2400 only) . . . .4_3
4.4.2 Power Monitor . .....4_3
4.4.2.1 Pwr Mon With Spectrum Analyzer (R-2400 only) . . . .4-4
4.4.3 TransmitterDistortionMeasurements .... .......4_4
4.4.4 Measurement Of Transmitted pL . ..4_4
4.4.5 SimultaneousOscilloscope/DvMOperation .....4-4
Section 5 - Applications
5.1.0 Service Shop Setups . . . .5_l
5.1.1 SpectrumAnalyzer .........5_l
5.1.2 Operating Notes For The R-200 Service Monitor With Spectrum Analyzer . . . .5-l
5.2.0 ReceiverSensitivityTest 12dBSINADAudioDistortion ........5-2
5.3.0 Receiver Sensitivity Test 20 dB euieting . . . . .5_z
5.4.0 SquelchSensitivityTest . .....5_z
5.5.0 Audio Power Output Test . . . .5_3
5.6.0 Audio Frequency Response . . .5-3
5.7.0 ModulationAcceptanceBandwidth ........5_4
5.8.0 RF Preselector Shape And Bandwidth . . . . . .5_4
5.9.0 ReceiverFrequencyAdjustment .....5_4
5.10.0 Basic FM Transmitter Test: Power, Frequency And Deviation . . . .5_5
5.11.0 TransmitterAudio Distortion .......5-7
5 .12.0 Transmitter Audio Frequency Response . . . . .5_7
5.13.0 AMModulationTest ........5-7
5.14.0 Cavity And Duplexer Tuning Bandpass Adjustment . . . . . .5_g
5.15.0 cavityAndDuplexerTuningBandpasswith RejectNotch-ReceiveLeg .......5-g
5.16.0 cavityAnd Duplexer Tuning Bandpass with Reject Notch - Transmit Leg. . . . . .5-9
5.17 .0 Desensitization Test In Service Duplexer . . . .5-9
Section 6 - Maintenance
6.1.0 BatteryKitlnstallation.. ......6_l
6.1.1 BatteryCharging .....6_l
6.1.2 Operation From An External DC power Source . . .6-l
6.1.3 Shippinglnstructions.. .....6_2
6.1.4 Two-WayServiceOption Installation ......6_2
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IV
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FOREWORI)
1. SCOPEOFMANUAL
This manual is intended for use by experiencqd
technicians with similar types of equipment. It contains
all the service information required for the equipment
described and is current as of the printing date. Changes
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 in-
corporated into the equipment.
2. MODELANDKITIDENTIFICATION
Motorola equipments are specifically identified by
an overall model number on the nameplate. In most
cases, assemblies and kits which make up the equipment
also have kit model numbers stamped on them. When a
production or engineering change is incorporated, the
applicable schematic diagrams are updated.
As diagrams are updated, information about the
change is incorporated into a revision column. This revi-
sion column appears in the manual next to the parts list
or, in some cases, on the diagrarn. It lists the reference
number, part number, and description of the parts
removed or replaced.
3. SERVICE
The Motorola Test Equipment Repair Center is
charged with the service responsibility for all test equip-
ment supplied by the Motorola Communications Sec-
tor. The center maintains a stock of original equipment
replacement parts and a complete library of service in-
formation for all Motorola test equipment.
Most in-warranty repairs are performed at the
center. Exceptions include repairs on some equipment
not manufactured by Motorola which are performed by
the original supplier under the direction of the Motorola
Test Equipment Repair Center. Out-of-warranty service
is performed on a time and materials basis at com-
petitive rates. Customer satisfaction is continually
surveyed by reply cards returned with repaired in-
struments.
The Motorola Test Equipment Repair Center also
provides a convenient telephone troubleshooting ser-
vice. Frequently, a user technician can troubleshoot a
piece of equipment and isolate the defective components
under the direction of the Motorola Test Equipment
Repair Center via telephone. Required replacement
parts are then immediately shipped to the user thereby
reducing shipping time and servicing costs. For
telephone troublehsooting contact the Motorola Test
Equipment Repair Center toll free at (800) 3234967 .
All other inquires and requests for test equipment
calibration and repairs should be directed to the
Motorola Area Parts Office. They will contact the
Motorola Test Equipment Repair Center, process the
necessary paperwork and, if necessary, have the Center
contact you to expedite the repair:
4. REPLACEMENT PARTS ORDERING
Motorola maintains a number of parts offices
strategically located throughout the United States.
These facilities are staffed to process parts orders, iden-
tify part numbers, and otherwise assist in the
maintenance and repair of Motorola Communications
products.
Orders for all replacement parts should be sent to
the nearest area parts and service center listed below.
When ordering replacement parts the complete iden-
tification number located on the equipment should be
included.
V
6tPt1W2Et6ffi

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J.
5.1
ADDRESSES
GENERAL OFFICES
MOTOROLA Communications and
Electronics Inc.
Communications & Electronics parts
l3l3 E. Algonquin Rd.,
Schaumburg, Illinois 60196
Phone: [phone]
U.S. ORDERS
WESTERN AREA PART^S
I 170 Chess Drive, Foster City
San Mateo, California 94404
Phone : [phone]
TwX: 910-375-3877
MIDWEST AREA PART^S
l3l3 E. Algonquin Rd
Schaumburg, Ill. 60196
Phone: [phone]
TwX:910-6930869
MID.ATLANTIC AREA PARTS
7230 Parkway Drive
Hanover, Maryland 20176
Phone: [phone]
TWX: 710-862 -1941
EAST CENTRAL AREA PARTS
12995 Snow Road
Parma, Ohio 4/130
Phone: [phone]
TWX: 810-421-8845
EASTERN AREA PARTS
85 Harristown Road
Glenrock, New Jersey 07452
Phone: 20144/'-96fi2
TWX:710-988-5ffi2
ROCKY MOUNTAIN AREA PARTS
20 Inverness Place E.
Englewood, CO 80112
Phone: [phone]
TWX: 910-935-0785
PACIFIC SOUTHWESTERN AREA PARTS
P.O. Box 8i036
San Diego, California g2l3g
Phone: 7l4-S7B-8030
TWX : 910-335-1 516
GULF STATES AREA PARTS
I140 Cypress Station
P,O. Box 73lls
Houston, Texas 77090
Phone: [phone]
TWX: 910-88 l=6392
SOUTH WESTERN AREA PARTS
P.O. Box 34290
3320 Belt Line Road
Dallas, Texas 7 5234
Phone: [phone] I
TWX: 910-860-5505
SOUTHEASTERN AREA PARTS
P.O. Box 368
Decatur, Georgia 30031
Phone: [phone]
TWX: 810-766-0876
CANADIAN ORDERS
MOTOROLA LTD.
National Parts Department
3125 Steeles Avenue East
Willowdale, Ontario M2H 2H6
Phone: [phone]l
TWX: 610-491-1032
Telex: 06-526258
Att COUNTRIES EXCEPT U.S. AND CANADA
MOTOROLA, INC.
International Parts Dept.
l3l3 E. Algonquin Road
Schaumburg, Illinois 60196 u.S.A.
Phone: [phone]/,82
TWX: 910-693-0869
Telex: 722U3
Cable: MOTOL PARTS
5.2
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5.3
5.4
fiPtrM2Wrc.o
VI
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MOTOROLA TEST EQUIPMENT PRODUCTS
AUTHORIZED WARRANTY SERVICE CBNTERS
MotorolaC&EParts
Test Equipment Service Center-East
1313 E. Algonquin Road
Schaumburg, IL 60196
1-800-323-6967
I-312-57 6-7 025 (Illinois Only)
MAMS: NAGOU
TTY: 910-693-0869
MotorolaC&8, Inc.
Hawaii Service Center
99-1180 Iwaena Street
Aiea, HI 9670I
1-808-487-0033
TTY: 63212
Motorola Australia Pty. Ltd.
Test Equipment Service Center
666 Wellington Road
Mulgrave, VIC 3170
Melbourne
Phone: [phone]
Telex: 32516 MOTOCOMA AA
Cable: MOTOCOM MELBOURNE
MAMS: FEMEL
Motorola GmbH
F and V ABT. Frachtzentrum FZF
6000 Frankfurt Main/Flughafen
West Germany
Attn: METEC
Phone: [phone]
Telex: (0) 4182761 MOT D
Motorola S.A.
Test Equipment Service Center
14, Allee du Cantal CE 1455
91020 Evry Cedex
Phone: [phone]
Telex: .600434F MOTEV
MAMS: FAFEV
Motorola Canda, Ltd.
Test Equipment Service Center
3420 Pharmacy Avenue
Unit 11
Scarborough, Ontario MIW 2P7
Phone: [phone]
TTY: 610-492-2713
MAMS: NAWIL
Motorola
Motorola
5th Street
P.O. Box
Wynberg
Phone: [phone]
Tele>u 422-070 SA
CABLE: MOTOROLA JOHANNESBURG
MAMS: FESAF
Test Equipment Service Center-West
23338. Utah Avenue
El Segundo, CA 90245
r-2t3-536-0784
South Africa (Pty.) Ltd.
House
39586
VII

''o'noFlro,',/l tuc..
Communicafions
Sector SAFE HANDLING OF CMOS
INTEGRATED CIRCT]IT DEVICES
Many of the integrated circuit devices used in com-
munications equipment are of the CMOS (Complemen-
tary Metal Oxide Semiconductor) type. Because of their
high open circuit impedance, CMOS ICs are vulnerable
to damage from static charges. Care must be taken in
handlitrg, shipping, and servicing them and the
assemblies in which they are used.
Even though protection devices are provided in
CMOS IC inputs, the protection is effective only against
overvoltage in the hundreds of volts range such as are
encountered in an operating system. In a system, circuit
elements distribute static charges and load the CMOS
circuits, decreasing the chance of damage. However,
CMOS circuits can be damaged by improper handling
of the modules even in a system.
To avoid damage to circuits, observe the following
handlitrg, shippitrg, and servicing precautions.
l. Prior to and while servicing a circuit module,
particularly after moving within the service area,
momentarily touch both hands to a bare metal earth
grounded surface. This will discharge any static charge
which may have accumulated on the person doing the
servicing.
NOTE
Wearing Conductive Wrist Strap
(Motorola No. RSX40I5A) will minimize
static buildup during servicing.
WARNING
When wearing Conductive Wrist Strap,
be careful near sources of high voltage.
The good ground provided by the wrist
strap will also increase the danger of
lethal shock from accidentially touching
high voltage sources.
2. Whenever possible, avoid touching any elec-
trically conductive parts of the circuit module with your
hands.
3. Normally, circuit modules can be inserted or
removed with power applied to the unit. However,
ChCCK thc INSTALLATION ANd MAINTENANCE SCC-
tions of the manual as well as the module schematic
diagram to insure there are no objections to this prac-
tice.4. When servicing a circuit module, avoid
carpeted areas, dry environments, and certain types of
clothing (silk, nylon, etc.) because they contribute to
static buildup.
5. All electrically powered test equipment should
be grounded. Apply the ground lead from the test
equipment to the circuit module before connecting the
test probe. Similarly, disconnect the test probe prior to
removing the ground lead.
6. If a circuit module is removed from the system,
it is desirable to lay it on a conductive surface (such as a
sheet of aluminum foil) which is connected to ground
through l00k of resistance.
WARNING
If the aluminum foil is connected directly
to ground, be cautious of possible elec-
trical shock from contacting the foil at the
same time as other electrical circuits.
7. When soldering, be sure the soldering iron is
grounded.
8. Prior to connecting jumpers, replacing circuit
components, or touching CMOS pins (if this becomes
necessary in the replacement of an integrated circuit
device), be sure to discharge any static buildup as
described in procedure l. Since voltage differences can
exist across the human body, it is recommended that on-
ly one hand be used if it is necessary to touch pins on the
CMOS device and associated board wiring.
\-
@ Motorola, Inc. l9t2
All Rights Reserved
Printed in U.S.A. @ehnrlleorll uur fl ltfrng refrvlteet 6tPt1106Et4{
t2/t0/82- PHI
1301 E. Algonquln Road, Schaumburg, ll.001S

9. when replacing a cMos integrated circuit
device, leave the device in its metal rail container or con-
ductive foam until it is to be inserted into the printed cir-
cuit module.
device inputs after power is applied to the cMoS cir-
cuitry. Similarly, such low impedance equipment should
be disconnected before power is turned off.
I l. Replacement modules shipped separately from
the factory will be packaged in a conductive material.
Any modules being transported from one area to
another should be wrapped in a simlar material
(aluminum foil may be used). NEVER usE NoN-
coNDUcTIVE MATERIAL for packaging these
modules.
10. All low impedance test
pulse generators, etc.) should be equipment (such as
connected to CMOS
\-,
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A
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SECTIONI
Figure l-1. Communications Service Monitor
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1-1

1.1.0 GENERAL This section lists the physical, electrical
and input/output characteristics of the Communications
Service Monitor shown in figure 1-1.
T.2.0 SPECIFICATIONS
SECTION 1
SPECIFICATIONS
Modes: AM/FM Generate, Monitor Power Monitor,
Voltmeter DC, RMS, AC, RF Wattmeter and
Load, Oscilloscope General
OSCILLOSCOPE
Size: 2.5 in diagonal
Freq. Response: DC to .5 MHz (3 dB point)
Signal Generator Mode
FREQUENCY
Range: 200 k{z to 999.9999 MHz
Resolution: 100 Hz
Accuracy: Same as time base
EXTERNAL VERTICAL
INPUT 10 mV, 100 mV, 1 V, 10 V per division
Ranges: 1us, 10us, 100us, 1ms, 10ms, 100ms per
Sweep Rates: division
Sync: Automatic or adjustable level triggering
OUTPUT (16 dB variable
in 10 dB steps over 8
ranges)
Range: .05uV to 800uV (low level output)
40uV to 1V (high level output)
Accuracv: ii 3B [1,T,,ffJ,.1,'u,,13 ]&'flff9",8t 38til,'ii rever
freq. range +3 dB leveling over the 750 MHz to
999.9999 MHz frequency range + 1 dB over the
operating temperature range ret. 25o C
DIGITAL VOLTMETER
Readout: 3 digit Autoranging 1, 1q 100, 300 volts full scale
DC Accuracy: * 1dlo F.S. + L-Sd
AC Accuracy: + 5% F.S.
AC Bandwidth: 50 Hz to 10 kHz
CODE SYNTHESIZER &
AUDIO GEN.
Frequency Range: 50 Hz to 9.999 kHz
Resolution: 0.1 Hz 50 to 1000 Hz, 1 Hz 1000 Hz to 9999 Hz
Accuracy: *..01o/o
Special Function: PL, DPL, DPL invert, 2 tone sequential,2 tone
variable, tone remote
Output Level: 0 to 3 RMS @ 600 Ohms
PURITY
Spurious: -40 dB
Harmonics: -15 dB (step attenuator-0 dB,0 dBm out)
FREQUENCY
MODUI.ATION
Deviation: 0 to 50 kHz peak
FM Noise: 100 Hz
Extemal/lntemal
Frequency Range: 5 Hz to 10 kHz
Modes: External, internal or microphone (any or all)
SINAD Meter
lnput level range: .5 V to 10 VRMS
Accuracy: + 1 dB @ 12 dB SINAD
Distortion:
(1 kHz using code
synthesizer lor tone)
Range: 0 to 35 dB
lnput Level Range: .5 V to 10 VRMS
Accuracy Soh of F.S. from 1o/o to ffi%
PL Counter
Range: 60 to 270 Hz
Resolution: 0.1 Hz
AMPLITUDE MODUI.ATION
Range: 0 to 50% from 1 to 500 MHz
Extemal/lntemal
Frequency Range:, 100 Hz-10 kHz (+ 1 dB)
Extemal lnput Approx. 150mV for 50% BNC connector
Modes: lnternal, external, microphone or all
simu ltaneously TIME BASE
Standard TCXO: Aging + 1 x 10€ Yr Temp. + 1 x 10€ from 0 to
+55 C
Optional OCXO: Aging + 1 x 10€ Yr Temp. + 5 x 10€ max.
Monitor Mode
Frequency Range: 3 MHz to 999.9999 MHz useable to 100 KHz
with reduced sensitivity.
Resolution: 100 Hz
Accuracy: Same as time base
Frequency Enor
lndicator: Digital Display of frequency error and bar graph
Power and Environmental
Battery Weight:
Temp. Range:
Dimensions:
AC: 90 to 130, 180 to 250 V ac, 50/60 Hz
DC: +11.0to +17Vdc
Optional Battery: 12V battery provides approx. t hr. contlnuous
Weight:
operation
8 lbs. (3.63 kg)
0to +55C
71/2" high x 121/2" wide x 14" deep
(19.0 cm x 31.8 cm x 35.6 cm)
30 lb. excluding battery pack (13.6 kg)
Sensitivity: 1.5 uV for 10 dB EIA SINAD (narrowband + 7
(Over the 3 MHz to KHz mod. acceptance)
5 uV for 10 dB EIA
999.9999 MHz range) SINAD (wideband + 100 kHz mod. acceptance)
5 uV for 10 dB EIA SINAD AM
Spurious Response: -40 dB Typical
0 dB image + 21 .4 MHz
-10 dB at L.O. harmonic + 10.7 MHz R-2400 Spectrum Analyzer
FM DEVIATION
MEASUREMENT
Range: 1, 10, 100 kHz full scale
Accuracy: +5o/o of reading + 100 H2,500 Hz to 50 kHz
deviation, + 10o/o of reading 50 kHz to 75 k{z
Dispersions: 1, .1, .01 MH/div
Dynamic Range: 55 dB min.
Measurement Range: -100 dbm to + 27 dbm at Antenna connector
using internal RF step attenuator
Accuracy: + /-5 db absolute (at frequencies
below 800 MHz); + l-2 db linearity.
Useable to + 51 dbm at RF ln/Out conn. (level
uncalibrated)
Display Range: Level: 6 divisions at 10 db per division
Frequency: 8 divisions with switch selectable
dispersions of 1, .1, and .01 MHz per division
Dynamic Range: Noise desensitization: -55 dbc at .01 MH/div.
dispersion and 25 KHz freq. offset; -70 dbc at
1 MHzJdiv. dispersion and 1 MHz offset.
Audio Monitoring: Simultaneous Monitor function with spectrum
analyzer display of received signal.
AM MODULATION MEASUREMENT
Range: 0 to 1@%
Accuracy: + Soh of full scale
RF WATTMETER
AND LOAD
Frequency Rrnge: 1 MHz to 1000 MHz
Power Range: .5 watt to 125 watt
Accuracy: + 10o/o
Protection: over temp. and over power alarms
\_/
\..-/
L-2
\r'

SECTION 2
DESCRIPTION
2.I.0 DESCRIPTION
The R-2200 and R-2400 are test instruments designed
and manufactured by Motorola to perform the most
commonly used tests on radio communications equip-
ment. Rugged and portable, the Communications Serv-
ice Monitors are designed for technician productivity.
2.2.0 MICROPROCESSOR TECHNOLOGY
The R-2200 and R-2400 Communications Service Moni-
tors use advanced engineering design based upon a
Motorola M-6800 series microprocessor. The units fea-
ture liquid crystal displays (LCD) and a sealed mem-
brane keyboard for easy and accurate entry of data. The
LCD's show exactly what displays and functions are ac-
tive at any time. The displays change as you switch
monitor functions, and prevent you from selecting an
invalid readout.
2.3.0 MULTIPLB FUNCTIONS
The microprocessor design permits a wide variety of
service applications. The R-2200 is capable of perform-
ing tests which require:
Modulation Oscilloscope
"Off-the-Air" PL Counter
Multimode Code Synthesizer
AC/DC Digital Analog Voltmeter
General Purpose Oscilloscope
SINAD Meter
Distortion Meter
RF Wattmeter
as well as the traditional service monitor functions of
SIGNAL GENERATION, FREQUENCY ERROR and
MODULATION measurements. In addition, the
R-2400 provides a spectrum analyzer display while
simultaneously monitoring the received signal.
2.4.0 PORTABILITY
Weighing under 30 lbs. (13.6 kg), the unit's form factor is
engineered for ease of carrying. The optional internal
battery allows t hour continuous operation. Time is
saved since the technician has to transport less equip-
ment and does not have to take time to unpack, hook-up,
disconnect and repack additional equipment.
2.5.0 DURABILITY
The R-2200 and R-2400 are field environment tough and
meet the shock and vibration portions of EIA specifica-
tion RSl52B. The units have been subjected to acceler-
ated life testing, during the design stage, to ensure the
best possible design and reliability. The Mylar covered
keyboard is sealed against moisture, dirt, dust and oil.
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 con-
trolled LCDs provide autoranging analog and digital
displays.
2.7.0 AM/FM SIGNAL GENERATOR
The built-in general purpose signal generator provides
continuous coverage of the HF, VHF, and UHF land
mobile spectrum for receiver testing. Many forms of
external and internal modulation can be simultaneously
impressed on the carrier signal for actual composite sig-
nals. The frequency range of the RF signal generator is
from 200 KHz to 1. GHzin 100 Hz steps. The output of up
to 1 VRMS provides sufficient amplitude to get through
misaligned tuners and receivers and is especially effec-
tive when changing a receiver's frequency. The high
level, calibrated output is available over the entire fre-
quency range of the Communications Service Monitor.
2.8.0 SINAD METERING
A comprehensive check of receiver performance can be
made with a SINAD measurement. The analog meter
bars and digital display of SINAD appear automatically
whenever that measurement mode is selected. Hook-up
is simple with only two connections required and
measurements can then be accomplished without the
need for a separate signal generator, SINAD meter or
distortion analyzer.
2.9.0 DISTORTION METER
The distortion meter provides receiver or transmitter
audio stage quality measurement without a separate sig-
nal generator or distortion meter. It also provides higher
resolution than an oscilloscope to ensure the radio under
test meets all distortion specifications.
2.IO.O TBRMINATED RF POWER MEASUREMBNT
RF power is measured when the Communications Ser-
vice Monitor is in the power monitor mode. The built-in
RF load dissipates up to L25 watts. If a higher powered
transmitter should be keyed into the unit or if a lower
power transmitter is keyed into the unit for a prolonged
time threatening overheating of the power measuring
circuitry, the audible alarm sounds and the LCD's dis-
play changes to read "OVER POWER" or "OVER
TEMP", thus warning the technician to de-key. The in-
strument is further enhanced by the simultaneous indica-
tion of RF power output, carrier frequency error and
modulation, all at the same time.
L
2-l

2.II.O OFF.THE-AIR MONITOR
The 1.5 microvolt sensitivity of the Communications
Service Monitor receiver allows off-the-air monitoring
and measurement of transmitter frequency error and
deviation to 1000 MHz. A variable squelch attows weak
signals to be monitored, but can be set tighter to ensure
the proper signal-to-noise ratio for measurement accura-
cy. The off-the-air monitor function enables frequent
parameter checks without leaving the shop, thus spotting
system degradation early and keeping service costs
down. Bandwidth can be set "'WIDE" Tor off-channel
signal location or wide band FM; or "NARROW''' for
maximum sensitivity and selectivity.
2.12.0 OFF-THE-AIR PRIVATE LINE FREQUENCY
COUNTER
Identifies the PL frequency of any radio under test to
allow complete testing of PL subaudible tone signalling.
2.I3.0 MULTIPURPOSE OSCILLOSCOPE
This general purpose scope is ideal for waveform analysis
in two-way communication servicing. Use it for viewing
modulation signals (either internallyor externally gener-
ated), detection of asymmetric modulation or audio dis-
tortion, and general purpose signar tracing and trou-
bleshooting.
2.14.0 MULTIMODE CODE SYNTHESIZER
The Communications Service Monitor generates pRI-
VATE LINE tones (PL), DIGITAL PRIVATE LINE
codes (DPL), two-tone sequential paging codes and
tone-rernote signalling tones. All codes are available at
the "MOD OUT" jack, as well as being used internally to
modulate the RF signal generator. This eliminates the
necessity of using separate generators and oscillators for
general servicing, setting transmitter deviation, or for
checking tone remote base control lines.
2.15.0 SIMULTANEOUS MODULATION
Modulation is simultaneously available from an internal
I KHz tone generator, a multimode code synthesizer,
and from external inputs. The external modulation can
be voice from a standard Motorola mobile radio micro-
phone (which plugs into the front panel of the instru-
ment), os well as a signal applied to the external BNC
input. Separate controls are provided for independently
setting the levels of the 1 KHz tone, tlr. code synthesizer,
and the external modulation sourcis. The i KHz test
tone is a convenient source of modulation for making
SINAD measurements. A "MOD OUT" connector pro-
vides external access to all of the modulation signais.
2.16.0 DIGITAL/ANALOG VOLTMETER
The built-in voltmeter provides circuit and power supply
service capability. AC voltage reading are RMS valGs.
2.17.0 SPECTRUM ANALYZER
The R-2400 includes a spectrum analyzer which pro-
vides frequency spectrum display while allowing the
user to monitor the audio of the programmed frequency
signal. Three dispersions of l, .1, and .01 MHz/Oiu are
available. In "Anlzr Sens Mon", the ',Antenna" port is
used. The range of power levels displayed when the step
attenuator is in the 0 dB position is -40 dBm (top
graticule) to -100 dBm (noise floor). Vertical divisions
are l0 dB each. When 70 dB attenuation is added using
the step attenuator, the range of power levels displayed
becomes + 27 dBm to -30 dBm. Care must be taken to
not exceed the maximum input level of .5 watt (+27
dBm) at the Antenna input. In "Anlzr pwr Mon", the
RF signal that is applied to the "RF rn/out" port is
sampled and displayed. The required amount of at-
tenuation to maintain an on-screen display can be ad-
justed with the step attenuator.
2.IE.O THE FIRST IN A SERIES/TWO.WAY
SERVICE OPTION
The Two-wAY SERVICE oPTIoN is the first in a
series of new option cards. This pC board, plug in
compatible with any R-22a0 (or R-2400) via an open
option module slot and comes equipped with the
following functions:
TWO-WAY SERVICE OPTION
DPL DECODE
DTMF ENCODE
DTMF DECODE
Some of the major features of the DpL Decoder in-
cludes OFF-THE-AIR decoding of DpL or IDPL
codes. The Two-way Service option will decode only
valid DPL codes and will not display invalid codes.
with the DPL encoder, standard in every R-2200 (or
R-2400), the service technician has a ,,failsafe opera-
tion" making it easier and less time consuming when
performing a complete DPL system check.
The option card also provides multiple methods in which
to encode DTMF tones. The most basic form of generating
DTMR a real time encoder, is one selection possible. Therc
are also encoding formats available for operator selection
which include: 1) l6 digit storage (BATCH ENCODE) ,2)
user programmable timing, and 3) simultaneous pL and
DTMF encode.
A last function of the Two-Way Option is DTMF Decode.
In this mode the service monitor will decode DTMF tones
OFF-THE-AIR or via the modulation input BNC connec-
tor. This option will decode and store up to 16 DTMF digits.
with DPL, DTMF and the standard pL Encode and
Decode built-in, the R-2210 and R-2410 Communica-
tions Service Monitors qualify as a complete signalling
simulator, capable of performing a complete signalling
system check on the land mobile industries most com-
mon signalling formats.
\-/
\-/
2-2
\-/

\-
\,-
SECTIOI\3
OPERATION
3.1.0 INTRODUCTION
To become proficient, an operator must know the equip-
ment and its capabilities. Before operating the service
monitor, carefully study the purpose and function of each
switch and indicator described here and become familiar
with the operating procedures given.
3.1.1 SWITCH AND INDICATORS
See figures I ,2,3 ,,4,5 ,6,7 ,, and 8 for the location of
assemblies, controls and indicators on the front of the
service monitor.
3.2.0 GENERAL
The service monitor is the radio communication techni-
cian's universal tool. It is required to service and main-
tain most AM, FM and Cw two-way radio equipment
and needs to provide accurate measurements, have dur-
ability and offer fast, efficient use. This service monitor
was designed to meet all these criteria. A front view of
the service monitor, (figure 3-l ), reveals two liquid
crystal displays which will provide the digital and analog
readouts for any mode of operation selected. To the
left, is a modulation oscilloscope to display modulation
waveforms received or generated by the service monitor.
It can also be used as a general purpose oscilloscope for
routine trouble shooting procedures. In the R-2400, it
functions as a spectrum analyzer. A sealed membrane
keypad is used for all data entry. Each time a pushbut-
ton is actuated an audible feedback tone will tell the
operator the entry has been accepted. Operation is
discussed in paragraph 3 .4.0. Specific controls are
grouped by function and outlined with red graphics to
reduce operator confusion. Each section will be covered
in detail later. The RF SECTION with RF carrier
rn/out controls is at the bottom left. The OSCILLO-
SCOPE controls are to the right and include the multi-
purpose input used for SINAD, distortion, digital volt
meter and oscilloscope vertical inputs. In the R-2400,
the frequency dispersion is controlled by this section.
Next is the MONITOR section with speaker and squelch
controls for off the air monitoring and on the right, a
MULTIMODE CODE SYNTHESIZER to allow the
technician to modulate an RF carrier signal with
PL,DPL, timed signalling formats, and external sources
such as a microphone or audio generator.
3.2"1 POWER
The power on/off switch is a three position toggle switch.
In the full down position, "OFF", the unit is turned off.
The center position, "STBY", removes power from all
circuits except for the battery charger and frequency
standard. This allows battery charging when not in use
and maintains stability of the crystal oscillator. This is
especially important for high stability units. In the up
position, "ON", all circuits are powered.
3.2.2 MODE SWITCH
The mode select switch is a three position toggle switch
which selects the type of signal to be monitored or gener-
ated. The "FM" position allows the unit to monitor or
generate frequency modulated signals. The "C'W"" posi-
tion allows the unit to generate unmodulated RF signals
and the "4M" position generates or monitors amplitude
modulated signals.
FIGURE 3-I_CLOSEUP FRONT VIEW
3-1
\-

3.2.3 FUNCTION SWITCH
3.2.3.1 GENERATE FUNCTIONS The function switch is a
four position rotary switch which permits the service
monitor to be used as an RF signal generator specified
from 200 kHz to 999.9999 MHz or an RF signal monitor
specified from 1 MHz to 999 .999 MHz. In the "HI GEN"
(high generate) function the unit generates and outputs
an RF signal and is capable of 200 uV to 1 VRMS output
on any frequency within the specified range. The 1 volt
output level is sufficient for transmission through an
antenna connected to the antenna connector. In the
"GEN" (generate) function the unit generates an RF
signal for direct connection to the antenna input of the
equipment under service with output levels from .1 uV to
200 uV.
3.2.3.2 MONITOR FUNCTIONS The "SENS MON"
(sensitive monitor) function allows the unit to monitor
low level signals. The 1.5 microvolt sensitivity allows off
the air monitoring of a remote transmitter's frequency
error and deviation/0/o modulation (of modulated car-
riers). Hookup is made to the "ANTENNA" connector.
Selecting the "PwR MoN" (power monitor) function
permits the service monitor to operate as an RF watt-
meter, allowing direct output power measurement of
transmitters within the range of .5 to 125 watts. Fre-
quency error and deviation/ t/o modulation measure-
ments are also available in the "PwR MON" function.
Hookup is made to the "RF IN/OUT" connector. The
R-2400 has two additional function switch positions,
"Anlzr Sens Mon" and "Anlzr Pwr Mon" which are used
to enter the analyzer mode of operation. In "Anlzr Sens
Mon", the signal applied to the "Antenna" input is
displayed. In "Anlzr Pwr Mon", the signal applied to
the "RF Inlout" input is displayed. All other functions
are the same as for "Pwr Mon" and "Sens Mon".
3.3.0 [,IQUID CRYSTAL DISPLAY MODE SELECT
Notice the cursor controls tr on the left and right
LCD's. These controls select the various measurement
modes. Each time the cursor control is depressed the
annunciator DOT located on the left side of each LCD
screen will move and an audible feedback tone will verify
actuation. The equipment is programmed to suppress
measurement modes not relevant to the selected service
monitor function. For example, when in the "GENER-
ATE" function, frequency error and power (on the right
LCD) cannot be accessed. This reduces operation time
and increases productivity. See table 1 for software de-
fined selections.
3.3.1 LIQUID CRYSTAL DISPLAYS
3.3.1.I ANALOG METER BARS/DIGITAL DISPLAYS
As shown in fig. 3-2 the LCD's provide autoranging
analog and digital displays. Digital displays provide
accuracy and autoranging meter bars assist during peak-
ing and dipping maintenance adjustments. To provide
efficient operation the digital readouts of selected modes
TABLE 3-I
FU N CTIO N
SWITCH POSITION ACCEPTABLE M EA.
SUREMENT MODE SUPPRESSED MEA-
SUREMENT MODE
GEN ERATE
HI GENERATE DEVIATION ALARM
DEV/%AM
DVM
DISTORTION
SI NAD
BATTERY VOLTAGE
RF LEVEL
FREO ERROR
POWER
POWER MON ITOR
OR
ANALYZER
POWER
MON ITOR
DEVIATION ALARM
DEV/%AM
DVM
DISTORTION
POWER
FREO ERROR
BATTERY VOLTAGE
SINAD
RF LEVEL
SENS ITIVE
MON ITOR
OR
ANALYZER
SEN SITIVE
MON ITOR
DEVIATION ALARM
DEV/%AM
DVM
DISTORTION
FREO ERROR
BATTERY VOLTAGE
SI NAD
POWER
RF LEVEL
are presented at the same time as analog displays. With
display modes selected for RF signal measurements such
as FM deviation or frequency error, the meter bars oper-
ate about a center point and show symmetrical or non-
symmetrical deviation or drifting about the center fre-
quency. In "%oAM", the meter bar graph operates about
a center point and shows positive and negative percent-
age of amplitude modulation. Other disflay mode ana-
log meter bars (distortion, power) have zero reference
on the left with autoranging meter bar displays increasing
to the right. SINAD has a "reverse" meter bar graph. As
SINAD values get larger in a range of 0-20 dB the meter
bar graph gets smaller. The voltmeter display, "DVM",
has left to right meter bars for all AC signals and positive
DC signals. For negative DC signals, the meter bars
move right to left with zero reference at the right.
3.3.1.2 SPECIAL DISPLAY SELECT SWITCHES Three
special membrane switches are provided to control the
digital volt meter, RF level and deviation/percent AM
modes. The tr is used to select the FM deviation or
AM modulation positive or negative peaks. In the
"DEVIVoAM" measurement mode, deviation is auto-
matically selected if in FM and VoAM is automatically
selected if in AM. The m is used to select the display
for either AC or DC voltages and the @ provides
the "RF LEVEL" digital readout in volts or dBm. These
keys will respond only when the associated function is
active.
\-/
\-/
3-2
\.-,

; **R*.,*#fum,+. $$$ i\t"'*- sw$
s w#ru$YSffi N s,s."N {.-\$*\lu$:.i$\:
\-
\/
3.4.0 PROGRAMMING SEQUENCE
The unit has three program keys,E @ and
Depressing any key will initiate the user programming
states as detailed below. The left and right vertical cur-
sors for LCD measurement displays and the vertical
cursor in the modulation section will not respond
whenever the unit is in a data entry state. When in any
programming sequence, only numeric digits 0-9,
ffi:ffii,ffiffi
Press Press
Numeric Program
Key Key Display
For example if a frequency 195.050 MHz is present in
the left LCD display, 3o RF monitor frequency 455.321
MHz can be entered into the non volatile memory as:
ffiffiffiffi : ffiffiffiffi
, si{lhr {N'..
: ' '*l$ *S ,, :
#s ffii lisstn ss$ s
' :-' S ,S W WSIF
....s.. .......$. RR..S S.S:.
::....w..ffii..ffi K,N:w
Comment
FIGURE 3-2-CLOSE-UP OF LCD'S AND
MEMBRANE KEYBOARD
and left and right cursors respond.
3.4.1 GENERATOR AND MONITOR FREQUENCY
The service monitor has the capability of storing a
separate frequency for monitor and generate. To pro-
gram the monitor frequency, set the function switch to
"Pwr Montt or "Sens Mon" ("Anlzr Pwr Mon" or ttAnlzr
Sens Mon" can also be used on the R-2400).
To enter an RF frequency press the ['A program key.
L-J
Immediately the first digit on the left LCD will blink
indicating the point of entry. Next enter the desired fre-
quency. Resolution is specified at 100 Hz on frequencies
to 999.9999 MHz meaning seven decimal digits are valid
entries. As the 7 digits are entered using the keys 0
through 9, the blinking cursor moves to the right auto-
matically but may also be manually moved using tft. ffi
right or t< left cursors. To clear the entire entry, press
tr, if ;;B key is immediately depressed a second
time, the original number stored in memory is displayed
and the programming sequence is terminated. Pressing
t9 loads the frequency and also leaves the frequency
programming mode.
5
32r
'l'90.050
4ffi.050
+s 'ioso
+sol'6oo
456i060 Manually Correct Entry
4ssffio
455.32il'n. Complete Entry
455.321
NOTE: Shaded area indicates flashing digit. (point of data
entry)
The monitor RF frequency is now stored. The same se-
quence is used to program the generator RF frequetrcY,
except the function switch should be set to the "Gen" or
"Hi Gen" position.
\ i\i\;r11i ,,,,
\\'atttrtttrt**a...ttttt\
\,-
3-3

3.4.1.1 FREQUENCY COPYING If the desired gener-
ator frequency is to be the same as the programmed
monitor frequency, it is not necess ary to enter the fre-
quency twice. The frequency copy mode can be used as
follows:
Press
Program
Key
tr
tr Displays monitor frequency
again.
Generator frequency is
now 455.3210
NOTE: Shaded area indicates flashing digit. (point of
data entry)
The programmed generator is now the same as the mon-
itor frequency. In a similar manner, the monitor fre-
quency can be copied from the stored generator
frequency.
3.4.1.2 FREQUENCY STEPPING Frequency stepping
can be accomplished by using the E and E key.
First, enter the frequency programming mode by press-
ing the t3 key. The flashing digit can now be decre-
mented Gnt the m key or incremented using the
tr key. Even while the digit is flashing, the frequency
indicated on the display is the actual operating fre-
quency. It is not necess ary to press tr every time a
change is made. Frequencies are not stored in non-
volatile memory, however, until tr is pressed. The
tr and K keys are used to position the flashing
cursor as desired.
ln memory
flashing digit
100 kHz increment
100 kHz increment
100 kHz decrement
flashing ceases exit
program mode
NOTE: Shaded area indicates flashing digit. (point of
data entry)
3.4.2 DEVIATION LIMIT
The deviation alarm is set in a similar manner to frequen-
cy. Start by pressing E . The unit automatically switch-
es the left LCD display to view deviation alarm informa-
tion. The limit may take values between 00.0 and 99.9
kHz with 00.0 being a disable. As the 3 digits are entered
using keys 0 through 9, the blinking cursor moves to the
right automatically but may be manually moved using the
tr right or K left cursors. To clear the entire entry,
press t^"-l If the 1""-J key is immediately depressed a
second time, the original number stored in memory is
displayed and the programming sequence is terminated.
The deviation alarm is provided to warn of FM deviation
levels above this preset maximum and is active in any
measurement mode provided the function switch is in the
"SENS MON" or "PWR MON" position for FM type
carriers. Press E to load the programmed deviation
limit. Once loaded., the left LCD display immediately
returns to the measurement mode selected prior to
programming.
Display
*ffss .3zto
(previously
stored generator
frequency now
displayed)
'*ffiss .3210
455.3210
Comment
Displays monitor
frequency
Set function switch to Gen
or Hi Gen
Press
Program
Key
E
tr
tr
tr
G;l
It-iml
f-";
tirj
@
tr
Display
ffis 32to
4ffib s2to
4 3;;ro
4ssffiro
4ssffiro
4ssffiro
4ssffiro
4ss.4#io
Comment
frequency
reposition \-/
\-/
3-4
\-/

tion is inactive.
For example, if a
deviation limit of
L tile memory as:
\-, Press Press
Numeric Program
Key Key
055
NOTE: Shad
entry)
r507
deviation limit 00.0 Hz is present,, a
5.5 KHz can be entered into nonvola-
Display Comment
9.65 VAC Previous Measurement
Mode Selected
o.o KHz
o5ti$ KHz
9.65 VAC Prior Selected Mode
indicates flashing digit. (point of data
display will show the prompt "DPL" and the right side
will show the code last programmed. The code may take
on values from 000 to 777 octal. Enter the code starting
with the blinking cursor position and press Ef to load.
If digits 8 or g are pressed before the tr key is de-
pressed, they will be ignored by the unit because they are
invalid entries.
For example, to program a DIGITAL PRIVATE LINE
code of 350 octal:
Press Press
Numeric Program
Key Key
3.4.3 TONE DATA
Once a tone data sequence has been started by pressing
@ the vertical cursors on the left ancl right LCD's will
not respond until the data entry sequence is completed.
Programmecl sequences of prnmptr, displayecl in the
upper portion of the right LCD, vary for modulation
modes selected in the fnultimode code synthesizer. De-
pressing @ begins the sequences as follows:
3.4.3.1 PL The 66PL" position is provided for PL tone
outputs. The left side of the display will show the promp
"PL" and the right side will show the PL frequency last
programmed. The PL tone may take on values of 50 Hz
io q9q .0 Hz. Enter the frequenly starting with the blink-
ing cursor position and press tr to load.
For example, to program a PL code of 150.7 Hz:
Press Press
Numeric Program
Key Key Display Comment
Select "PL"
Modulation Mode
WZl.6 Hz Prior Programmed Code
tsoi#- uz
t;
tr
NOTE: Shaded area indicates flashing digit. (point of data
entry)
3.4,3.2 DPL,IDPL (inverted DPL) The "DPL" position is
provided for DPL encode capability. The left side of the
Display Comment
Select "DPL"
Modulation Code
,ffi70 Prior Selected Code
!1::::i::::r:::tt::
25 :t Incorrect Entry
ifl50
35$r
E
ded area indicates flashing digit. (point of data
250
350
NOTE: Sha
entry)
Move Cursor to First
Digit To Correct Entry
\.'- NOTE: All other sequences have frequency ranges be-
tween 50 Hz and 9999 Hz. The maximum number of
digits accepted is four. This means if a frequency such as
1999.9 is entered, the unit will automatically put a zero in
the least significant digit and you will get 9999.0
3.4.3.3 A The 66 A" position is provided for single tone
outputs. The left side of the display will show the prompt
"A FREQ", and the right side will show the frequency last
programmed. Enter the frequency starting with the
blinking cursor position. Press tr to load.
For example, to program a tone frequency of 2325 IHz.
Press Press
Numeric Program
Key Key Display Comment
2325
Select 66 A" Modulation
Code
::i:::::;:ilr!:!
r+ill950 Hz Prior Selected Tone
,t: i:: : :.: :.::: :
,trr.",r,
NOTE: Shaded area indicates flashing digit. (point of data
entry)
NOTE: While programming the deviation limit,, the func-
tr
ed area
\-
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