Ericsson PCS Series Maintenance Manual

LBI-38957A

Maintenace Manual

PCS

403-512 MHz
Synthesized Portable Radio

ericssonz

Table of Conte n t s

Front Assembly (Front Cap Assembl y &

Audio Logic Board) . . . . . . . . . . . . . . . . . . . . . LBI-38975

Rear Assemb ly (RF Board) . . . . . . . . . . . . . . . . . LBI-38276

Service Section . . . . . . . . . . . . . . . . . . . . . . . LBI-38661

LBI-38957

NOTICE!

This manual cover s Ericsson a nd Ge ne ral Ele ctr ic prod uc ts manu fa cture d and sol d by Ericsson Inc .

NOTICE!

Repairs to this equipment should be made only by an authorized service technician or facility designated by the sup­plier. Any repairs, alterations or substitution of recommended parts made by the user to this equipment not approved
by the manufacturer could void the user’s authority to operate the equipment in addition to the manufacturer’s war­ranty.

NOTICE!

The software contained in this device is copyrighted by the Ericsson Inc. Unpublished rights are reserved under the
copyrig ht laws of t he United Sta te s.

This manual is published by Ericsson Inc., without any warranty. Improvements and changes to this manual necessi­tated by typographical errors, inaccuracies of current information, or improvements to programs and/or equipment,
may be made by Ericsson Inc. , at any time and without notice. Such changes will be incorporate d into ne w editions of
this manual. No part of this manual may be reproduced or transmitted in any form or by any mean s, electro nic or me­chanical, including photoc opying and recordi ng, for any purpose, without the ex pre s s writte n permissio n of Ericsson

Inc.

Copyright © April 1994, Ericsson GE Mobile Communications Inc.

2

LBI-38957

TABLE OF CONTENTS

Page

SPECIFICAT IONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

FCC Filing Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

OPTIONS AND ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

DESCRIPTI O N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Radio Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Standard Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

CONTROLS AND INDICATORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Tran smit Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Receive Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Alert Tones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

RADIO OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

To Receive A Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

T o Send A Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

To Place A DTMF Call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

OPERATIONAL FEAT URES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Automatic Number Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

T yp e 99 Tone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Channel Busy L ock-Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

SCAN OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Scan Vocabulary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Pre-Scan Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Scan Opera ti ng Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Simple SCAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Priority SCAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Scanning for Channel Guard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

TONE PROGR AMMING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

GE Type 99 Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Motorola Form at . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Individual Call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Group Call (Quick Cal l For ma t ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Channel Guard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Replacement Of Battery Pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

To Remove the Batte ry Pack from the Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

To Re-Connect the Batte r y Pack to the Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

RECHARGING THE BATTERY PAC KS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

INTRINSICALLY SAFE USAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Reduced Capacity in Nickel/Cadmium Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

MECHANICAL PAR T S B RE AKDOWN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

MECHANICAL PAR TS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

3

LBI-38957

SPECIFICATIONS*

FCC FILING DATA

Transmitter/Receiver
FCC Identifier

403-440 MHz AXA9MZ-PCSU1
440-470 MHz AXA9MZ-PCSU2
470-512 MHz AXA9MZ-PCSU3

FCC Part Numbers 22, 74, 80, 90, 95

GENERAL

Frequency Ra ng e 403-512 MHz
RF Power Range 1-4 Watts
Input Voltage 6.0 to 9.0 Volts
Channel Capacity 2, 8, or 16 Channels
Frequency Sprea d (Full Perform anc e)

TX Full Split
RX 20 MHz of S plit

Frequenc y Stab il ity ±5 PPM
Channel Spacing 25 kHz
Dimensions (less antenna) H x W x D

with 1200 mAh Battery 7.4 x 2.8 x 1.57 inches (18.8 x 7.11 x 4.0 cm)
with 1700 mAh Battery 8.8 x 2.8 x 1.57 inches (22.35 x 7.11 x 4.0 cm)

Weight

Radio (le ss bat te ry ) 11 ounc e s
1200 mAh Battery 9 ounces

1700 mAh Battery 13.5 ounces
Ambient Temperature Ran ge -30° to +60°C (-22° to +140° F)
Battery Drain (7.5 VDC )

Receiver Standby 70 milliamperes

Rece iv er Full Audio 250 milliamp er es

Transm it (@4 watts) 1.7 amperes

Transm it (@2 watts) 1.3 amperes
Batte ry L ife (be t wee n c harges ) High Ca pa ci ty Extra Hi gh Ca pacity

Hi Power (5-5-90% duty cycle ) 8.0 hours 11.0 hour s

Lo Power (5-5-90% dut y cycle ) 9.0 hours 13.0 hours

4

TRANSMITTER

Power Output

Hi Power 4 watts
Lo Power 2 watts (adjustabl e to 1 watt)

Conducted Spu rio us -66 dB (-30 dBm)
Modulation Deviat ion ±5.0 kHz (maximum)
FM Noise (companio n re cei ve r method) -45 dB
Power Adjust Range 1 to 4 Watts
Distortion 5% (maximum)
Deviation Symmetry 0.1 kHz
RF Load Im pedance 50 Ohms
Carrie r At tac h Time 35 milli sec onds
Audio Attach T ime 35 millisecond s

RECEIVER

LBI-38957

Audio Output (EI A) 0.5 W at ts (<5% distortion)
Sensitivity

12 dB SINAD (EIA) -119 dBm (0.25 µV)

Selectivity

(EIA 2-signal method) -65 dBm @ ±25 kHz

Spurious Response -70 dB
Intermodulation -65 dB
Hum and Noise

Squelched -80 dB
Unsquelched -48 dB

Modulation Acceptan ce ±7 kHz
Frequency Respon se Within +2 dB and -8 dB of a standard 6 dB/octa ve

de-empha sis cu rve from 300 to 3000 Hz (E IA) .

RF Input Impedanc e 50 Ohms

* These spec i fications are int ended primarily for use by servic e p er sonnel. Refer to the appropriate Specification Sh ee t for
com ple t e specific at io n s.

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LBI-38957

OPTIONS AND ACCESSORIES

BATTERY PACKS

PCP A1 J

High Ca pacity

(19A705293 P1)

Stan dar d
CHISS1 (120 VAC)
CHISS2 (230 VAC)

PCPA1K

Extra High Capacity

(19A705293P2)

DESK CHARGERS

PCPA1L

Extra High Capacity

(19A705293P3)

Factor y Mutual App rove d

Rapid
CHIRS1 (120 VAC)
CHIRS2 (230 VAC)

ANTENNA (Helical)

PCNC3C 19B801 620P1 (403- 440 MHz )

PCNC3D 19B801 620P2 (440 -470 MHz) Fa ctor y Mut ua l Appro ved

PCNC3F 19B801620P3 (470-512 MHz)

6

OPTIONS AND ACCESSORIES

ANTENNA (Flexible Whip)
PCNC3A 19B801621P1 (403-4 70 MHz ) Factory Mutual App rove d
PCNC3B 19B801621P2 (4 70-5 12 MHz) Factory Mutu al App rove d

CARRYING ACCESSORIES

Belt Clip

PCHC1C

(Option Package 19B 2332 41G1)

(Modifica tion Kit 19A14 4704 G1)

LBI-38957

(contin ued)

(Factory Mutua l Approved )

Swivel Plate

PCHC1D

(Belt Loop 19B 226627G2)

(Swivel Option 19B233243G1)

Earpiece Kit

PCZM1A

Incu des PCPA1C

Speaker/Microphone

PCAE1X

Accessorie s Conn ec t or

PCAC1C (19C851752P7)

7

LBI-38957

OPTIONS AND ACCESSORIES

(contin ued)

CARRYING CASES

(Factory Mutua l Approved )

PCHC5S

High Ca pa c it y Ba tt e ry Pack

Full Cover 19D902456P15

PCHC5U

Extra High Ca pa c it y Ba tt e ry P a ck

Full Cover 19D902456P18

PCHC5T

High Capacity Battery Pack

Retaining Stra p 19 D9024 56P7

PCHC5V

Extra High Capacit y Ba tt er y Pack

Retaining Stra p 19 D9024 56P7

8

When the battery is low, the low battery indicator
(BAT) is displayed on the LCD and an audio alert is
sounded every 7.5 minute s. When the ba tt e ry is su f­ficiently low to cause improper operation, the radio
micropro cessor te rm i nate s all ope ra tion .

LBI-38957

DESCRIPTION

The PCS Portable radio is a small, r uggedly constr ucted,
two-way FM radio, housed in an aluminum and Lexan case.
The UHF synthesized radios operate in the 403-512 MHz
range and they can be purchased with 2-, 4-, 8-, or 16-chan­nel operation.

Operating controls for the radio are provided through a
rubber keypad on the side and front (a three-button keypad
on the Standard version). All keypad switches have a good
tactile feel and are sealed to provide weather protection.
When turned "ON," the radio po wers-up on the last chann el
used and at the last volume setting. The operating controls,
UDC, and battery pack are shown in Figure 1.

All the PCS radios are equipped with a Universal De­vice Connector (UDC) for connecting external options and
for programming the radios. The radios are programmed
using a personal computer and programming interface box
that connects to the UDC. The UDC is covered with a rub­ber cover for improved weather prot ect ion .

The PCS uses a BNC antenna connector. The antenna
base is overmolded to fit flush aga in st the housing for added
weather pr o tecti on .

The radio battery pack securely latches in place at the
bottom of the radio. The radio ON/OFF switch is located
on the battery pack.

A Liquid Crystal Display (LCD) on the front of the ra­dio shows the selected channel, volume level, SCAN mode
(SCN)*, and priority level (P1, P2, or S). The 2-channel ra­dio uses the "P1" and "P2" pixels for high and low transmit
power indicators, respectively. In addition, the "S" pixel is
used to indicate "Talkaround" mode. The LCD also has a
transmit (TX) indicator, a low battery voltage indicator
(BAT), and a Type 99 paging (PG) indicator. There are
eight (8) levels o f volume represe nt ed by the fou r (4) bars i n
the LCD. Each bar represents two (2) volume levels. The
LCD module is backlit for night viewing and is mounted in
a rubber seal for wea ther protecti on.

The radio is shipped from the factory with the high
power level set to 4 watts and the low power level set to 2
watts.

NOTE

RADIO PROGRAMMING

Each of the 4-, 8- or 16-channel radios can be pro­grammed for SCAN operation, and HOME Channel or
Emergency Channel, in addition to the Tone or Digital
Channel Guard, Squelch Tail El imination (STE), Type 99
Tone Decoding, Automatic Number Identification (ANI),
Channel Busy Lock-Out, and HI/LO transmit power level
available on the conventional 2-channel radio. These op­tions can be programmed on a channel-to-channel basis.
Two different T99 Tone tables can be programmed into the
PCS. Each channel is capable of Individual, Group, or Su­per Group Decode.

Other programmable features include: Carrier Control
Timer (CCT), display backlighting, and alert beep options.
These features can be programmed, as desired, to meet sys­tem re quirements.

Refer to the programming manual (TQ3366) for com­plete programming instructions.

ASSEMBLY

The PCS personal radio consists of an RF board
mounted in the rear a ssembly, an audio/logic boa rd mount ed
in the front assembly, and a control frame assembly.

The RF board contains all transmit, receive, and synthe­sizer circuits. The audio/logic board contains all transmit
audio and recei ve a udio ci rcuit s as wel l as all lo gic a nd c on ­trol circuits. A microprocessor on the audio/logic board
generates and decodes all tones used in Channel Guard or
Type 99 tone signalling.

The control frame assembly mounts in the radio front
cover and pro vid es th e fo llowin g func t ion s:

*SCAN applies to the 4-, 8- and 16-c ha nn el PCS radio s.

• Audio/Logic board interface.

• Microphon e and spea ke r conne c tions.

• Houses the channel up/down, volume up/down,

monitor, and PTT switche s.

9

LBI-38957

• UDC interface to the outside of the radio for external

options and custome r progra mmi ng.

• Houses the LCD module for status display.

Refer to the Interconnection Diagram (listed in the Table
of Contents of the Service Section of this manual) for all
circuit boar d and co ntr ol fram e co nne c tions.

STANDARD FEATURES

In addition to dual-priority SCAN (in 4-, 8- and 16­channel operati on), Channel Guard, Digital Channel Guard,
STE, ANI, T ype 99 Decode, and transmit ter power leve l set­tings, the PCS radio includes the following standard fea­tures:

1. Monitor Allows the operator to monitor channel

activity before transmitting by disabling
either Channel Guard or the sque lch cir­cuit.

2. Carrie r

Control
Timer

3. Channel

Busy
Lock-Out

4. Radio

Memory

5. Surveillance

Feature

6. Talk Around Each channel in the 2-channel radio can

7. Power Set The TX power set on the 2-channel ra-

8. Audio Alert

Beep

The Carrier Control Timer is program­mable from 15 to 225 se co nds in 15 sec­ond inc re m en ts or it ca n be di sa bl e d.

This feature prevents the operator from
transmitting a message on a busy chan­nel.

The radio memory recalls the last radio
status such as the last volume level,
channel selected, and SCAN status.
These settings are stored in memory
while the radio is turned off.

The earphone, external microphone in­put, and PTT options are available for
surveillance purposes.

be put into Talk Around mode. The 4-,
8- and 16-channel radios can be pro­grammed for a Talk Around channel.

dio can be toggled between 2 and 4
watts. Power can be set by the PC pro­grammer for all radios.

Usual alert beeps will not be sounded
when this feature is disabled. However,
the T-99, P1 priority, and ANI end bee p s
will be sounded.

9. LCD
Backli ght

10. Self-Test The PCS radio is equipped with a self-

11. Battery
Voltage Level

When the battery voltage goes low while transmitting,
BAT will be displayed and will continue to be displayed af­ter returning to the recei ve mode. BAT will be turne d off af­ter 5 seconds unless the battery voltage level is also low in
the receive mode.

Below 6.3 volts, BAT will continue to be displayed.
End of battery is considered to be 5.8 volts. This level will
allow at least one hour of EIA operation. The radio will
continue to operate at reduced power levels below 5.8 volts.
Below 5 volts, radio opera t ion is comple te ly di sa bl e d t o p re ­vent corrupt io n of th e radi o persona l it y.

On the 2-channel radio, the backlight
can be turned on by pressing the ∧ but­ton. The backlight will remain illumi­nated as long as the button is pressed
and will remain illuminated for 5 sec­onds after the button has been released
(provided the button was pressed for at
least 1 second). Backlight will not be
turned on whe n this feature is disab led.

In the 4-, 8- and 16-channel radios,
LCD backlighting is turned on every
time a control button is pr esse d (c ha nn el
select, volume up/down, and monitor)
and remains on for another 5 seconds
after the control button is released (pro­vided the control button was pressed for
at least one second). Backlighting is
turned off while tran smitt ing an d wil l il ­luminate again for 5 seconds after the
PTT is relea sed.

test feature that is performed during
power-up of the unit. A good sel f-test is
indicated by a series of three (3) beeps,
if enabled, followed by the last radio
status on the LCD. All of the display
segments are turned on during the three
beeps. A bad self-t est will cau se all di s ­play segments to remain on and no
beeps will be sounded.

The BAT display is illuminated any
time the battery voltage level drops be­low the low level (6.3 volts). BAT is
displayed and continues to be displayed
on the LCD until the battery is charged
or a fresh battery pac k is conne cte d. An
audio alert is also sounded every 7.5
minutes while the BAT display is illu­minated.

10

LBI-38957

Figure 1 - PCS Operat ing Cont rol s

The simultaneous flashing of the BAT indicator and the
sounding of alert beeps, if programmed, indicates the radio
has failed to lock on frequency. Transmission will be termi­nated any tim e t he ra dio i s in the transm it m ode a nd the sy n ­thesize r fa i ls to l ock on frequen cy.

CONTROLS AND INDICATORS

CONTROLS

The radio controls consist of an ON/OFF switch, a
MONitor and PTT switch, volume and channel select but­tons, SCAN/Talk Around buttons (∧), DELete/Power Set
buttons (∨), and ADD/HOME /BACKLIGHT co ntrols (S).

ON/OFF The ON/OFF slide switch on the battery pack,

controls power from the ba tter y pa ck to the radi o.
When turned "ON," an audible click is heard and
a yellow square is visible beneath the switch.
The radio assumes the last operating state (i.e.,
channel volume, etc.). This status will be dis­played in the LCD window, indicating power is
applied. BE SURE the power switch is fully ON
(or fully OFF).

MON The MONitor switch can be programmed for 2

different modes of operation: Channel Guard or
Squelch.

Mode 1 (Channel Guard) - Receive Channel
Guard can be disabled at any time by briefly
pressing (for less than 1 second) and releasing
the MONitor/Channel Guard button. The Chan­nel Guard disabled condition is indicated by the
flashing volume level bars on the display. After
holding the button for more than 1 second, the
button becomes a true monitor switch and opens
the rec e ive r.

Mode 2 (Squelch) - All channel activity can be
monitored by pressing and holding the MONitor
button for up to three seconds. After three sec­onds, Channel Guard is disabled as indicated by
the flash ing volu me ba rs on th e di spla y.

Channel Guard Disable Re set

Common to both CG and Squelch modes, Chan­nel Guard disable reset can also be programmed
for either m anual or auto operat ion .

11

LBI-38957

Manual: Once the Receive Channel Guard is dis-

abled, it remains disa ble d in re c ei ve m ode
regardless of the channel change or PTT.

Auto: Receive Channel Guard will automat-

ically be re-enabled after the PTT is acti­vated.

Channel Guard is always enabled when transmit­ting, regardless of the Channel Guard switch set­ting in Receive mode.

Type 99 Reset

When the radio is in Type 99 Monitor mode, press­ing and holding the MONitor button for any length
of time reverts the radio to Selective mode. See
Type 99 sectio n for de t ai ls.

PTT The radio is keyed by pressing and holding the

PTT (Push-to-Talk) button. Regardless of the
Channel Guard switch setting (disabled or en­abled), Channel Guard is always enabled during
transmission (see Channel Guard switch section).
This button is also used for selecting the Monitor
mode on T99 c ha n n el (se e Type 99 section).

one second to tra nsmit t he eme r genc y ANI c ode o n
the selected channel. If the radio is programmed
with a HOME channel, the emergency ANI code
will be transmitted on the HOME channel instead
of the elected channel.

If the radio is scanning when the ∧ button is
pressed and no HOME channe l is program me d, the
radio will stop scanning, transmit the emergency
ANI code on the selected channel, and resume
scanning. If the radio is scanning when the button
is pressed and a HOME channel is programmed,
the radio will stop scanning, transmit the emer­gency ANI code on the HOME channel, switch the
receive operation to the HOME channel, and re­sume scannin g.

Emergency transmissions can only be disabled by
turning the radio of f a nd t hen back on.

BACKLIGHT - In 2 - channel radi o op eratio n , t hi s
button illuminates the backlight. BACKLIGHT
will be illuminated when the button is pressed and
will remain on for 5 seconds after the button is re­leased (provided the button was pressed for at least
one second).

"S" This button turns the SCAN mod e on and of f in the

8- and 16-channel radios. It must also be pressed
while adding or deleting channels from the Scan
list (see ∧ and ∨ sections). On the 2-channel radio,
this button put s the rad io in Talk Around mode .

∧ This control button is used for three differe nt func -

tions in the 4-, 8- and 16- ch an ne l radi os.

ADD - Wh ile th e "S" button is pressed, pressing
the ∧ button will "add" the selected channel to the
Scan list or increase the channel’s priority status in
the Scan list (e.g., Non-SCAN to Non-Priority,
Non-Priority to Priority 2, and Priority 2 to Pr ior ity

1). This procedure can only be accomplished
when the SCAN mode is off.

HOME - When activated alone (without the
SCAN button), this button is used to revert the se­lected channel to a pre-programmed HOME chan­nel. If SCAN mode is "ON" prior to pressing this
key, scanning will stop. However, the radio will
resume scanning if the channel, volume, or PTT
button is not pressed within 5 seconds.

EMERGENCY - If programmed as an EMER­GENCY button and no HOME channel is pro­grammed, press and hold the button for at least

∨ In 4-, 8- and 16-channel radios, while the "S" but-

ton is being pressed, activating the ∨ button will
remove (delete ) the se lect ed channel from the Sca n
list.

Radio operating status is not altered when this but­ton is act iva t ed al one .

In the 2-channel radio, this button toggles the TX
power betwee n 2 and 4 watt s.

CHAN
UP/
DOWN

VOL
ume

The CHAN UP/DOWN button selects the trans­mit/receive channel. Communications channels
are selected one at a time or progressively by
pressing and holding the CHAN UP/DOWN but­tons. The next higher channel is always selected
(channel 1 follows channel 2, 4, 8, or 16 for 2-, 4-,
8-, or 16-c hannel radi os re sp ec t ive l y).

The VOLume buttons set the receive audio to the
desired level while pressing the UP (∧) or DOWN
(∨) button. Changing the volume level while the
radio is squelched causes the radio to beep, if pro­grammed, at the new selected level. No beep will
sound when the radio is already unsquelched. The
relative volume level is indicated by the number of
bars illuminated in the LCD. There are eight (8)
levels of volume indicated by the four (4) bars on

12

LBI-38957

the LCD; each bar represents two levels of volume.
Pressing and holding the volume buttons conti nue s
to increment the volume in the direction indicated
on the butt on.

NOTE

The short beep indicator on volume change will
not be sounde d whe n th e spe a ke r is al re a dy on.

INDICA T ORS

The LCD shows the SCAN mode (for 8- and 16-channel
radios only); P1, P2, and S (Scan list) indicators; channel
number; volume level; battery condition; Type 99 Tone de­code status; and transmit indicator (see Figure 2). With re­gards to 4-, 8- and 16-channel operation, the LCD is backlit
anytime a control button is pressed. Backlighting is always
turned ON during transmit and remains on for 5 seconds af­ter the PTT or contr ol butt on is relea sed , if progra mme d.

In the 2-channel radio, the high and low power are indi­cated by the "P1" and "P2" pixels, respectively. The "S"
pixel indica tes tha t the ra dio is in "Talkaround" mode.

NOTE

These options must be enabled by the PC Program­mer before indicati ng status for the 2-channel ra di o.

PG This display indicates the selected channel pro-

grammed to re ce ive Type 99 calls. Upon re cei pt of
a Type 99 call, the PG flag flashes until the Type
99 call decoder is reset.

SCN Indicates that SCAN mode is active in the 4-, 8-

and 16-channel radios. This is not used in the 2­channe l radios.

P1 Priority 1 enabled is represented by this display (in

4-, 8- and 16- channel radios). This represents
high transm it powe r in 2-c ha nne l rad ios.

P2 Priority 2 enabled is represented by this display (in

4-, 8- and 16- channel radios). This rep re sents low
transmit powe r in 2-c ha nne l rad ios.

S This display indicates that non-priority is enabled

in 4-, 8- and 16- channel radios. This same display
indicates "Talkaround" mode is enabled in the 2­channe l ra di o.

CHAN The transmit/receive channel is indicated by a

number in the LCD wind o w.

BAT This is displayed in the LCD window when the

batte ry voltage is low .

Alert Tones

The LCD indicators are shown below in the Transmit
and Rec ei ve mo de .

Transmit Mode

TX TX indicates Transmit mode when the PTT button

is pressed.

BAT BAT indicates battery voltage is low and the bat-

tery pack requires charging. When the battery
pack voltage reaches the low level while in the
Transmit mode, BAT is illuminated and stays illu­minated for another 5 seconds after the radio is re­turned to the Rec eive mode. B AT is turned off after
five seconds unless the battery pack voltage level
is also low in th e Rec e ive mode.

Receive Mode

VOL The volume level (eight different levels) is indi-

cated by 4 bars on the LCD; each bar represents 2
volume levels.

1. Series of 3 beeps: Self-te st OK on Powe r -up .

2. Single be ep: Chan nel or Volume change .

3. Series of be e ps:

• Synthesizer out of lock.

• No transmit frequency when trying to transmit.

• Expired CCT.

• Channel busy indicator whe n the optio n is

enabled.

• T99 decode alert. (Service note: This is a

change from sta nd ar d ra dio s.)

Figure 2 - Liquid Crysta l Displa y (L CD)

13

LBI-38957

Self-Test The radio performs a self-test at power-

up each time the radio is turned on. A
good (passed) self-test will be indicated
by three beeps, if programmed, fol­lowed by the last radio status (channel
number, volume level, SCAN status,
etc.) being displayed in the LCD win­dow. All segments of the display are
shown during the three beeps. If the
self-test fails, all segments will be illu­minated but no beeps wil l be sounded .

BAT/ALERT Simultaneous flashing of BAT in the

LCD and the sounding of alert beeps, if
programmed, indicates failure of the
synthesizer to lock on frequency. If this
happens during transmission, the trans­mitter will become inhibited and no
transmission will be made. The opera­tor should select another channel, re­charge the battery pack, or have the unit
checked.

RADIO OPERATION

This manual provides only elementary information re­garding operation of the PCS personal radio. Refer to Op­erator’s Manual LBI-38955 for complete operating
instructions or Operator’s Manual lbi-39133 for the 4-, 8­and 16- channel version .

SAGE. The current status of the radio is displa yed
in the LCD window.

2. Press the MONitor button to determine if the chan ­nel is in use. Never interrupt another conversation.

3. While holding the radio so that the antenna is ver ti­cal, press the PTT switch and speak directly into
the grill or across the face of the radio or external
microphone. Speak in a normal voice . Rele ase t he
PTT switch as soon as the message is finished.
Messages (responses) cannot be received when the
PTT is be in g pressed.

4. When transmission is desired on a paging channel,
the PTT switch must be pressed twice. Press the
PTT switch the first time to take the radio out of
the paging mode. Press the PTT switch a second
time for normal PTT operation. Remember that a
PG flag flashes in the LCD window and the radio
beeps on the first pre ss of the PT T swit ch .

The radio can be returned to the Type 99 paging
mode by pre ssing the MONitor button.

TO PLACE A DTMF CALL

Specific procedures for placing a telephone call from a
PCS DTMF radio are determined by the operating system
where the radio is used. Consult a system re pre se nta t ive for
the exact ope rat ing proc e dure s for t he system .

TO RECEIVE A MESSAGE

1. To turn the radio ON, slide the ON/OFF switch on
the battery pack to the ON position. A yellow-col­ored area will be visib le be ne ath th e switc h.

2. After the radio has passed the self-test, press and
hold the VOL UP (∧) or VOL DOWN (∨) button
while listening to the beeps (if this feature is pro­grammed). Watch the LCD for the volume level
indicators (four bar lines) to select the desired lis­tening level.

3. Press the CHAN UP or CHAN DOWN button to
select the operating channel.

4. The radio is now ready to receive messages.

TO SEND A MESSAGE

1. Turn the ra dio ON and sel ect an ope rati ng ch anne l
as instructed above in TO RECEIVE A MES-

The keypad on the PCS DTMF radio is not active until
the PTT switch is operated. Therefore, the PTT switch must
be pressed at all times when operating any button on the
DTMF keypad.

OPERATIONAL FEATURES

The radio is PC programmable to power-up in either Se­lective (paging) or Monitor mode for channels programmed
for paging.

When Selective mode is chosen, the radio operates as a
tone and voice receiver, and allows only those calls that are
tone coded for the radio to be heard. Selecting Monitor
mode allows all calls with the correct Channel Guard (if
programmed) on the channel to be heard.

In either mode, when a correct T99 and Channel Guard
(if programmed and enabled) have been decoded, a series of
intermittent beeps will be heard to alert the operator of an
incoming call. A slow flashing PG flag will be illuminated
on the display to indicate that a call has been received.

14

If a Type 99 channel is in the Scan list and
SCAN is enabled, the Type 99 tones are ig­nored.

Scanning is p rovided on a carrier and Chan­nel Guard basis onl y!

LBI-38957

When Selective mode is chosen, the radio switches auto­matica ll y to Monitor mode.

At the end of the message, if Selective mode is desired,
press and release the MONitor button to reset the Type 99
tone signalling function. The PG pixel on the display will
stop flashing at this time.

While in Selective mode, the radio can be put in Moni­tor mode by pressing and releasin g t he PT T sw i tc h. A serie s
of beeps is sounded while the PTT is pressed, to indicate
that no transmission has occurred and the Monitor mode has
been selected as indicated by the flashing PG indicator.
However, any additional PTT activation will key the trans­mitt er.

The radio is programmable to decode any GE or Mo­torola decode combinations from any one of two T99 tone
tables on a per-channel basis. TX and/or RX Channel
Guard can be program m ed to any cha nn el wit h T99.

T ype 99 Rece ive Channel Guard (if program med) can be
disabled, any time, by the procedure explained in the Moni ­tor/Channel Guard section. The volume level bars will
flash, in dic a ti ng t ha t Channel Guard has bee n di sab le d.

NOTE

Re-setting Type 99 from Monitor mode to Selective
mode does not affect the Channel Guard switch set­ting.

ID Number (0 to 8192)
Start Delay (0 to 2 seconds in 100 msec incre-

ments)
Beginning or End of transm ission
Alert Beep ON/O FF
Per-c hannel basis selection (Cha nn el 1 to 16)
Emer gency ID

Type 99 Tone

1. Select the appropriate channel to receive Type 99
tone signalling. The PG flag will be displayed on
this channel.

2. When receiving a Type 99 call, answer in one of
the following two wa ys:

a. To reply to a message - After hearing the Type

99 paging tone, press the PTT switch and an­swer the call. After completing the communi­cation, press the MONitor button to reset the
radio for t he nex t cal l.

b. To avoid listening to a call - After hearing the

Type 99 paging tone, press the MONitor but­ton to res e t th e ra dio for the ne xt c a ll .

Automatic Number Identification

Automatic Number Identification (GESTAR) is a 320­millisecond burst of code that is generated at the beginning
of each transmission to identify the PCS radio to the base.
If programmed, a beep is sounded at the end of ANI trans­mission to indicate when conversation can begin as the mi­crophone is disabled until the ANI transmission is
completed.

Systems with Channel Guard require the ANI be delayed
long enough for the system to respond before ANI can be
decoded. A programmable delay (0 to 2 seconds) is pro­vided to meet this requirement. A delay of 350 millisec­onds, for example, requires the operator to wait for 670
milliseconds after pressing the PTT switch before conve rsa­tion can be started. The ID message can be programmed to
be sent at the end of a transm ission, if desired.

ANI is enabled on a per -cha nne l basi s.

In summary, ANI variable s are:

3. Type 99 operation can be disabled by pressing the
PTT switch when the radio is in Selective mode.
While the switch is pressed, the radio beeps to in­dicate tha t no tra nsmission is occurr ing .

After releasing the PTT switch, the PG flag flashe s
in the LCD window to indicate the radio is now in
the Monitor mode (CG or Squelch operation only).
Pressing the PTT switch results in a normal trans­mission.

NOTE

15

LBI-38957

T a ble 1 - PCS Function Guide

FUNCTION PROGRAMMING DESCRIPTION

MONITOR Button

Programmed for Channel Guard

Programmed for Squelch

Channel Guard Enable Manual

Auto

ANI Front

End

ANI side tone

Delay

SCAN SCAN for CG

SCAN for TX c ha nne l

SCAN Hang time Time receiver remains locked on channel after carrier

Momentary Hold Down

DIS/ENABLE CG MONITOR

MONITOR DIS/ENABLE CG

Must re-enable CG wi th MON butto n after tr ansmi tt ing

PTT will re-enable CG
Sent at front of message

Sent at end of m e ssa ge

YES/NO: Tells operator when it is OK to talk. (Only
happens when fron t of messa ge prog ra mme d.)
Independ ent of alert be ep .

Delay for re pe a ter t o de co de Channel Guard .
YES/NO:

Sel Ch (TX on sel e ct ch an ne l)
RX Ch (TX on rec ei ve d c ha nne l)

drops (programm able).

Hang after PTT release YES/NO: If Yes, receiver stays on cha nne l for

Beep on P1 YES/NO: Short beep after rec e iving P1 ca ll.

SCAN Prog Mode Front- all channel s progr amm e d from keypad.

T-99 Alert Beep

Alert Beep VOL

DTMF Auto Dial
Table

Number

Sta rt Ga p

Digit Len gth

Gap Lengt h

programmed ha ng time before SCAN re sume s.

(Independe nt of audio alert beep.)

Fixed - P1 fixed by PC. Othe r cha nne l s keypad
programmed.

Selecte d - P1 follows sel e ct ed ch an ne l. Othe r cha nne ls
keypad pro gra m me d.

YES/NO: Alert beep rec PG

VOL MAX
Numbe r to be di al e d with or withou t *.

Delay be twe e n * an d num be r.

Length of digits.

Gap between lengths .

16

LBI-38957

Channel Busy Lock-Out

This feature is programmable on a per-channel basis. If
programmed, the transmit function is inhibited if the carrier
is being received with the incorrect Channel Guard. If the
correct Channel Guard is being received, transmission will
be allowed. If Channel Guard is disabled and a carrier with
the incorrect Channel Guard is received, the message will
be heard but transmission wil l sti ll be inhi bi te d. If no Chan­nel Guard is programmed, Channel Busy Lock-Out is made
on carrier presence only . T ype 99 cannot be program med on
a channel wit h Channe l Busy Lo ck -Out .

NOTE

Please note that all reference to SCAN, Scan
list, etc. applies only to the 4-, 8- and 16-chan­nel radios.

The 2-channel radios are not equipped with the
SCAN function.

SCAN OPERATION

The SCAN function allows monitoring of up to 8 or 16
receive channels. The scanned channels can be any fre­quency within the frequency band limits of the radio and
can be Chan ne l Guard-protecte d (to ne or dig ital ).

Selected Channel - This is the last channel that the
operator selected with the Channel Select buttons.
The channel selection can be done either with
SCAN active or inactive. This channel is also
shown in the display window in SCAN mode un­less activity is detected on another channel being
scanned.

Received Channel - The received channel is a
channel that has been identified to have the correct
carrier and correct Channel Guard (if enabled).
The received channel number is shown in the dis­play window.

HOME Channel - This channel is a high priority
channel that can be programmed for easy access.
This HOME channel is selected by pressing the ∧
button. Pressing this button changes the selected
channel to the HOME channel regardless of the
current selected channel. If SCAN mode is "ON"
prior to pressing this key, scanning will stop.
However, if no control button is pressed (channel,
volume, or PTT) within 5 seconds, scanning will
resume.

Scan L ist - This is an int ernal list that is mad e of
channel numbers including their status, that will be
scanned when the SCAN mode is turned on. This
list is selected by the process explained in the
PRE-SCAN OPERATION section of this manua l .

Any channel can be scanned with or without a priority
level. One channel can be programmed for Priority 1 (P1)
and another for Priority 2 (P2) with any or all remaining
channels pro gra m med a s Non-Pri ori ty chann el s.

SCAN VOCABULARY

The following are terms frequently used when SCAN is
used:

Simple SCAN - Simple SCAN describes the co ndi­tion that exists when there is no activity on any
channe l in the Sc an list .

Priority SCAN - Priority SCAN describes the con­dition that exists when SCAN locks on a non-pri­ority cha nn el whil e sam pli ng t he Pr ior it y ch an nels.

Channel Guard SCAN - This is the scanning con­dition where tone or digital Channel Guard must
also be dete c te d be for e loc king on any channe l.

Non-SCAN Channel - A non-SCAN channel is a
channel that is not in the Scan list determined by
the operator. This channel is not normally
scanned.

Non-Priority Channel - This chann el is on the Sc a n
list as established by the operator. Activity on this
channel will be i nterrupt ed by ac tivity on eithe r the
Priority 1 (P1) or Pr i or i ty 2 ( P2) channel.

Priority 2 Channel (P2) - This channel is also on
the Scan list. Activity on this channel will inter­rupt activity on any non-priority channel. How­ever, activity on this channel will be interrupted
only by acti vit y on the Prior it y 1 (P1) cha nnel.

Priority 1 Channel (P1) - This channel is included
on the Scan list and activity on this channel will in ­terrupt and super se de a ny ot he r channel a ct iv it y.

Channel Activity - Channel activity is established
with the presence of a carrier modulated with a
correct Ch an ne l Gua rd (i f pro gra m me d) .

17

LBI-38957

Hang time - Hang time is the time interval that the
channel rema ins locked to a frequency even though
no channel activity is present. This condition
arises after channel activity has stopped or the PTT
has been released. This interval is programmable
from 0.3 to 5.0 se conds.

PRE-SCAN OPERATION

A Scan list must be created before SCAN can be used.
The Scan list can be established in three (3) different ways.
Service Note: The radio will not go into the SCAN mode
when no channel s are prog ramm e d.

1. Front Programmable Option - When programmed,
this option allows the operator to modify the Scan
list from the front pa ne l of the rad io.

a. "S" and ∧ Keys - When SCAN is off, holding

the "S" button down and pressing the button
increase s the Priority status in the Sca n list for
the displayed channel. This means that a pre­vious non-SCAN channel will become a non­priority channel, a non-priority channel will
become a Priority 2 (P2) channel, and a Prior­ity 2 channel will become a Priority 1 (P1)
channel. Changing the SCAN status of any
channel to Priority 1 or 2 status removes the
previous channel with that status to a non-pri­ority status.

b. "S" and ∧ Keys - When SCAN is off, holding

the "S" button down and pressing the ∧ but ton
removes the selected channel from the Scan
list regardless of the priority level of that
channel.

SCAN OPERATING MODES

Simple SCAN

Once SCAN is activated, the radio will perform a Sim­ple SCAN routine. This routine is performed when there is
no activity on any of the channels that are in the Scan l ist.

The scanning list at
right, is a n ex am pl e of
the routi ne performed
when there are more
than four (4) channels
in the Scan list.

(The abbreviation "np" indicates a non-priority channel,
and P1 and P2 indicate Priority 1 and Priority 2, respec­tively.)

Priority channels will continue being sca nned during
hang tim e.

The scanning list at
right, is a n ex am pl e of
the routi ne performed
when there are more
than four (4) channels
in the Scan list.

The preceding scanning orders assume that Priority 1
and Priority 2 channels exist. If they have not been as­signed, their positi ons in the scanning order are eliminat ed .

np6...np5... np4...np3...P1...P2
...np2...np1 ...np6...np5...P1...
P2...np4...np3...np2...np1...
P1. ..P 2 , etc.

NOTE

np3...np2... np1...P1...P2...np3
...np2...np1 ... P 1. ..P2, etc.

2. Field Programmable Option - When selected, this
option allows the operator to determine only the
non-priority and Priority 2 channels as described
above. The Priority 1 (P1) channel can only be se­lected with a PC progra mme r.

3. Selected Channel Option - When selected, this op­tion allows the operator to determi ne the no n-prior ­ity and Priority 2 channels as above. The Priority
1 channel becomes whatever channel is selected.
While in SCAN mode, both the "P1" and the se­lected channel’s actual Scan list priority status (P2,
S, or none) will be displa ye d in the LCD window .

18

PTT Pressing the PTT switch causes the ra-

dio to transmit on the selected channel
frequency and to stop the scanning rou­tine. A programmable hang time (0.3 to

5.0 seconds) will start as soon as the
PTT switch is released. Scanning will
resume at the end of the hang time. The
hang time is a PC programmable option
and can be ena bl ed or disa bl ed.

Channel Change Any channel change will change the se-

lected channel and show i t in the displ a y
window. A channel change will also
stop the scanning routine for a fixed, 2­second hang time. If no activity is de­tected on this new selected channel

Priority channels will continue to be
scanne d duri ng hang time.

LBI-38957

during this 2-second hang time, scan­ning will re sume.

∧ Pressing this button will revert the radio

(selected channel) to a pre-programmed
HOME channel and stop the scanning
rout ine automa t ically.

Priority SCAN

As soon as any activity is detected on a channel, the ra­dio will change the scanning mode from Simple SCAN to
Priority SCAN. The new receive channel will appea r in the
LCD window.

If the rec e ive channel
is a Non-Priority
channel, both Priority
1 and Priority 2
channels will be
sampled (sc a nned)
every 500 m il li ­seconds in the order
indica ted a t th e right.

• If a Priority 1 channel has not been established, the

radio will only break away to sample the Priority 2
channel every 1.0 second.

• If a Priority 1 channel has been established but not a

Priority 2 channel, the radio will break away to
sample the Priority 1 channel every 500 milliseconds.

• If neither a Priority 1 or Priority 2 channel has been

established, the radio will lock on this channel until
activit y on t his cha nnel goes away.

• When the receive channel is a Priority 2 channel, the

radio only samples Priority 1 channel every 500
milliseconds.

• Wh en th e rece ive chann el is a P riori ty 1 chan nel, no

other c ha nne ls wil l be sca nn ed .

P1...P1...P2...P1...P1...P2...P1
...P1...P 2 , et c.

Scanning for Channel Guard

The scanning for Channel Guard option may be selected
if, in addition to carrier activity alone, a correct Channel
Guard is also required to lock on a channel when scanning.
This optio n is selec t ed on an indi vi dua l radi o ba sis.

Scanning Priority channels with the wrong Channel
Guard will change the scanni ng rate as follows:

Priority 1 with wrong Channel Guard: The radio
will change its Priority 1 sample rate from 0.5 sec­onds (.5 seconds) to 2.5 seconds, but it will still
sample the Prio rit y 2 channe l eve ry 1.0 se co nd.

Priority 2 with wrong Channel Guard: The radio
will change its Priority 2 sample rate from 1.0 sec­ond to 5.0 seconds, but will continue to sample the
Priority 1 channel every 500 milliseconds (.5 sec­onds).

PTT The operator has two PC programmable

options to select from in regard to tra ns­mit channel selection. The operator can
choose to transmit on the selected chan­nel or on the receive channel. The
transmit channel will be s hown on the
display. Releasing the PTT switch will
unkey the transmitter and start the pro­grammable hang time (0.3 to 5.0 sec­onds), if enabled. Scanning will resume
again at the end of the hang time unless
there i s ac ti vit y on t ha t c ha nne l.

Channel Cha nge Any Channel cha nge wil l ch an ge the se -

lected channel. The receive channel, if
any , will stop being displayed/h ea rd an d
replaced by the new selected channel.
The scanning routine is temporarily
stopped for a fixed 2 seconds and will
resume again if there is no activity on
the selected channel.

Once a ctivity on the re ceive ch annel has ended, a pr o­grammable hang time (0.3 to 5.0 seconds) is started. Scan­ning will resume at the end of the hang time if there is no
activity on that channel. The selected channel will appear
now on the display. Note that Priority channels will con­tinue being scanned during hang time.

To alert the operator of an incoming call on the Priority
1 channel, an option is available to sound a beep upon re­ceiving this Prio rity 1 cha nne l.

∧ Pressing this button will revert the radio

back to the pre-programmed HOME
channel and stop the scanning routine
automatically.

NOTE

19

LBI-38957

TONE PROGRAMMING

An IBM-compatible personal computer using MS DOS
and a Programmer Interface Box plus the proper program­ming software is used to program the PCS Type 99 tones,
Channel Guard tones, and Channel Guard digital codes.
The Programmer Interface Box is connected between the
UDC on the side of the PCS radio and the back of the per­sonal computer. Refer to Programming Guide TQ3366 for
details.

Two sets of Type 99 tones can be programmed in the
PCS radio. Any channel can be programmed to decode any
call or all calls based on any one of the two tone sets. Indi­vidual, group, and super group paging can be used. MO­TOROLA formats are also acceptable.

PG is displayed on the LCD when that channel has been
programmed to receive Type 99 calls. Both receive and
transmit Channel Guard can also be programmed to any
channe l with Type 99 tone.

An Intermittent beep is sounded to alert the operator of
an incoming Type 99 call.

Upon receiving a call, the radio will open the audio and
flash the PG indicator until it is reset by momentarily press­ing the MONitor button.

NOTE

If a Type 99 channel is in the Scan list and SCAN is
enabled, Type 99 tones are ignored. Scanning is
done on a Carrie r an d Cha nne l Guar d ba si s only.

The optional Type 99 programming provides individual,
group, and super group call decode. The Motorola-format­ted, two-tone, sequential signalling schemes can also be de­coded.

The Group Call format allows communication with all
radios in a group. The Super Group Call (in GE Tone sys­tems) or Quick Call (in Motorola tone syste ms) allows c om ­municat ions between a ll radios in a system.

GE TYPE 99 FORMAT

Tone frequencies in the GE tone system fall within the
range of 5 1 7.5 to 997. 5 Hz.

In the GE tone format, the first tone can be from Tone
Group A (for individual or group calls) or from Ton e Grou p
C (for super group calls). The second tone may be from
Tone Group B (for individual calls) or from Tone Group D
(for group or super group calls). The GE tone format is il­lustrated as follows.

INDIVIDUAL

CALL

FORMA T

GROUP

CALL

FORMAT

SUPER

GROUP

CALL

FORMAT

For example, assume the paging number to be 123; the
first digit of the paging number is a "1." Look in Table 2
and read down the column labeled "100’s Digit" to a "1."
Read horizontally across the column labeled "10’s Digit."
The Tone Group is B. The second digit of the paging num­ber is a "2." The tone designator is B2 . Loo k in Table 3 and
down the column labeled "Tone Designator" to find B2.
Read horizontally across the column labeled "Tone Fre­quency." The first tone frequen cy is 787.5 Hz.

<...1.0 SEC...>

20%

TONE A

<...1.0 SEC...>

20%

TONE A

<...1.0 SEC...>

20%

TONE C

<...200 MS...>

25%

GAP

<...200 MS...>

25%

GAP

<...200 MS...>

25%

GAP

<...1.0 SEC...>

+300%,-0%

TONE B

<...1.0 SEC...>

+300%, -0%

TONE D

<...1.0 SEC...>

+300%, -0%

TONE D

In T ype 99 tone system s, c a ll s will not be he a rd fro m t he
receiver until the proper two tones are detected. When the
second tone is decoded and recognized as correct, an alert
tone sounds during the remaining portion of the second
tone. The rec ei ver audio path opens and rem ai ns open to re ­ceive messages until the decoder is reset. The PG indicator
will also flash to show a call has been re c eive d.

The PCS radio can be programmed with up to two sepa­rate tables of tones. Either the GE Type 99 format or the
Motorola format can be assigned to each tone table. The
tone decoder (individual, group, and super group for GE
format or individual, group, and quick call for the Motorola
format) can be enabled individually for each channel. Once
enabled, one of the two tone tables can be selected for each
channel.

20

To determine the second tone frequency, look in Table 2
and, as before, find the first digit of the paging number
("1").

The second Tone Group is A. The third di git of the pag ­ing number is a "3" and t he Tone Designator is A3. In Table
2, read down the column labeled "Tone Designator" and
find A3. Read horiz onta lly ac r oss the c olu mn l ab el ed " Tone
Frequenc y." The second tone freque ncy is 802.5 Hz.

For different paging numbers, locate the first digit in the
"100’s Digit" column and determine the tone frequencies as
described in the example. For a complete description of
tone applications, refer to DATAFILE BULLETIN DF­50003A.

Group Call code numbers range from 00 to 99.
However, there are several Group Calls with the
same T one B frequenc y . This limits the tot al nu mber
of Group Calls to 40.

LBI-38957

Tone D is the diagonal tone used (in GE systems only)
when the first and second tone frequencies are the same.
The standard frequency for Tone D is 742.5 Hz, but may be
program med wi th a ny tone frequenc y.

Table 2 - GE Tone Groups

100’s
Digit

0
1
2
3
4
5
6
7
8
9

10’s

Digit

For First

Tone

A

B
B

A

C
C
C

A

B

NOT USED

1’s

Digit

For Second

Tone

A
A
B
B
C
A
B
C
C

MOTOROLA FORMAT

Tone frequencies in the Motorol a tone syste m are wit hi n
the range of 288.5 to 1433.4 Hz. In the Motorola tone for­mat, the first tone may be one of three tones: A for Individ­ual Call, B for Quick Call, and C for Group Call. The
second or fina l to ne is B in all cases.

NOTE

The PCS radio is able to recognize the A, B, and C
tones. Individual, Group, and Quick Call formats
may be used simultane o u sl y.

Individual Call

Tables 4 and 5 may also be used to determine the tone
frequencies. The first digit of the code determines the Tone
Group used in the code (see Table 4). Then Table 5 is used
to determine the actual tone frequencies. For a code of 124,
the Tone Groups used are shown in Table 4. Tone A and
Tone B are both located in Tone Group 1 and To ne B is tone
number 4. Refer to the following examples for additional
information.

Example 1 - Code 098:

The digit "0" in Table 4 (First Digit of Code) shows the
Tone A is in Tone Group 4 and Tone B is in Tone Group 2
(see Table 5).

T one number 9 in Tone Group 4 is 524.6 Hz.

T one number 8 in Tone Group 2 is 879.0 Hz.

Example 2 - Code 265:

The digit "2" in Table 4 shows that both Tone A and
Tone B are in Tone Group 2.

T one number 6 in Tone Group 2 is 788.5 Hz

T one number 5 in Tone Group 2 is 746.8 Hz.

Group Call (Quick Call Format)

In Group Call applications, the Tone Group is deter­mined by Table 6, while the frequency is determined by Ta­ble 5. Refer to the following examples.

NOTE

The Motorola tone format is illustra ted as follows:

INDIVIDUAL

CALL

FORMA T

GROUP

CALL

FORMAT

SUPER

GROUP

CALL

FORMAT

<...1.0 SEC...>

(Minimum)

TONE A

<...1.0 SEC...>

(Minimum)

TONE C

<....................................8 SEC....................................>

<...NONE...>

(Minimum)

GAP

<...NONE...>

(Minimum)

GAP

TONE B

<...3.0 SEC...>

TONE B

<...3.0 SEC...>

TONE B

Example 1- Group Ca ll Code 07 (also c ode 27 a nd 37 ):

The digit "0" in Table 6 shows that Tone B is in Tone
Group 2 along with 20 to 29 and 30 to 39. Tone number 7
in T o ne Group 2 is 832.5 Hz (se e Table 5).

21

LBI-38957

Example 2 - Group Call 98 (also 48 and 88):

The digit "9" in Table 6 shows that Tone B is in Tone
Group 4 along with 40 to 49 and 80 to 89. Tone number 8
in T o ne Group 4 is 496.8 Hz.

Table 3 - GE Tone Generator Freque ncies

TONE

GROUP

A

B

TONE

DESIGNATOR

A0
A1
A2
A3
A4
A5
A6
A7
A8
A9

B0
B1
B2
B3
B4
B5
B6
B7
B8
B9

TONE

FREQUENC Y

(Hz)

682.5

592.5

757.5

802.5

847.5

892.5

937.5

547.5

727.5

637.5

652.5

607.5

787.5

832.5

877.5

922.5

967.5

517.5

562.5

697.5

C0
C1
C2
C3

C

DIAGONAL TONE 742.5

C4
C5
C6
C7
C8
C9

667.5

712.5

772.5

817.5

862.5

907.5

952.5

532.5

577.5

622.5

22

LBI-38957

T ab le 4 - Motorol a Type Code Numbers

First Digit

of

Code

1
2
3
4
5
6
7
8
9
0

A

TONE

NO.

Tone Gr o u p fr om

which Tone A

is Selected

1
2
1
4
5
2
4
5
2
4
3

TONE

GROUP 1

(Hz)

T a bl e 6 - Motorola Group Call Tone Groups (TG)

Tone Group from

which Tone B

is Selec te d

1
2
2
4
5
1
5
4
4
2
3

Table 5 - Motoro la Type Code Numbe r s

TONE

GROUP 2

(Hz)

TONE

GROUP 3

(Hz)

GROUP CALL

CODE NUMBER

00-09
10-19
20-29
30-39
40-49
50-59
60-69
70-79
80-89
90-99

TONE

GROUP 4

(Hz)

TONE

GROUP 5

(Hz)

TONE GROUP

(TONE B)

TG2
TG1
TG2
TG2
TG4
TG5
TG1
TG5
TG4
TG4

TONE

GROUP 6

(Hz)

1
2
3
4
5
6
7
8
9
0

349.0

368.5

389.0

410.8

433.7

457.9

483.5

510.5

539.0

330.5

600.9

634.5

669.9

707.3

746.8

788.5

832.5

879.0

928.1

569.1

CHANNEL GUARD

The radio can be programmed for Channel Guard
(CTCSS) encode/decode tone freque nci es of 67 Hz to 21 0.7
Hz, including all of the standard EIA frequencies. Each
channel can be programmed for encode/decode, encode
only, deco de only, or for no Chan ne l Gua rd f r eq uency.

A list of standard tone frequencies is shown in Table 7.
A list of digital Channel Guard codes and their equivalents
is shown in T a ble 8.

288.5

296.5

304.7

313.0

953.7

979.9

1006.9

1034.7

1063.2

1092.4

67.0

71.9

74.4

77.0

79.7

82.5

85.4

339.6

358.6

378.6

399.8

422.1

445.7

470.5

496.8

524.6

321.7

T a bl e 7 - CG Tone Frequencies

88.5

91.5

94.8

97.4

100.0

103.5

107.2

584.8

617.4

651.9

688.3

726.8

767.4

810.2

855.5

903.2

553.9

110.9

114.8

118.8

123.0

127.3

131.8

136.5

141.3

146.2

151.4

156.7

162.2

167.9

173.8

1153.4

1185.2

1217.8

1251.4

1285.8

1321.2

1357.6

1395.0

1433.4

1122.5

179.9

186.2

192.8

203.5

210.7

23

LBI-38957

T ab le 8 - Primary & Equivalent Digital Codes

PRIM

CODE

023
025
026
031
032
036
043
047
051
053
054
056
060
065
066
067
071
072
073
074
075
076
104
107
114
115
117
122
123
125
127
130
131
132

EQUIVALENT

CODE

340, 766

566

374, 643

137

560, 627

355
375, 707
520, 771

405, 675
465, 656
116, 737

301

737
516, 720

603, 717, 746

470, 701

640
360, 721
501, 624
203, 754
226, 557

365
327, 615
534, 674
411, 756

535
632, 637

172

412, 441, 711

364, 641
572, 702

605, 634, 714

PRIM

CODE

133
134
135
136
142
143
144
145
147
150
152
153
155
156
157
161
162
163
164
165
171
172
212
213
217
222
223
224
225
227
231
234
235
236

EQUIVALENT

CODE

413, 620

273
205, 610
502, 712
174, 270

333
466, 666

525

303, 306, 761

256, 703
366, 415
606, 630
233, 660
517, 741
322, 503
345, 532
416, 553

460, 607, 654

207, 732

354
265, 426

253
263, 736

371, 453, 530
445, 457, 575
350, 475, 750
313, 506, 574

536
261, 567

504, 631, 636, 745

423,563, 621
611, 671, 723
251, 704, 742

PRIM

CODE

237
243
245
246
252
254
255
262
266
271
274
276
307
311
312
315
317
324
325
331
332
344
346
351
356
363
446
447
452
454
455
462
523
526

EQUIVALENT

CODE

464, 642, 772

267, 342
370, 554
542, 653

661

314, 612, 706

425

316, 431, 730

655

427, 510, 762

652
326, 432
362, 565

330, 456, 561
515, 663, 743

321, 673

546, 614, 751

343, 570
550, 626
372, 507
433, 552

471,664, 715

616, 635, 724

353, 435

521

436, 443, 444, 662

467, 51 1, 672

473, 474, 731, 744

524, 765

513, 545, 564

533, 551

472, 623, 725

647, 726
562, 645

REPLACEMENT OF BATTERY PACK

CAUTION

The battery pack used with the PCS Personal Radio must be supplie d by Eric sson Inc. and as shown under OP­TIONS AND ACCESSO RIES listed in the Table of Contents of this ma nual.

24

To Remove the Battery Pack from the Radio

(Refer to Figure 3.)

1. Turn the radio OFF by sliding the ON/OFF switch
on the battery pack, to the OFF position.

2. Press down on the battery pack release latch and
slide the battery pack out in the direction of the re­lease lat c h.

To Re-Connect the Battery Pack to the Radio

(Refer to Figure 4.)

1. Be sure the ON/OFF switch on the battery is in the
OFF position.

2. Align the battery pack with the grooves in the bac k
of the radio and slide the battery pack toward the
front of the radio .

3. Insert the battery pack into the grooves until the
batte ry re le a se l at c h cl ic ks in to pl a ce .

LBI-38957

Figure 3 - Removing the Battery Pack

RECHARGING THE BATTERY PACKS

The radio is equipped with a battery voltage indicator
that is displayed in the LCD window when the battery pack
voltage reaches a low level and the battery requires charg­ing.

There are several chargers and charge rates available for
charging the PCS battery packs. The battery pack may be
charged while connected to the radio or removed for charg­ing. For specific instructions regarding the battery charger,
refer to the applicable charger Operator’s Manual.

INTRINSICALLY SAFE USAGE

Selected personal radios with appropriate factory-in­stalled F4 Options are certified as Intrinsically Safe by the
Factory Mutual Research Corporati on for use in Class 1, Di­vision 1 or 2, hazardous locations in the presence of Groups
C and D atmospheres; or non-incendive Class 1, Division 2,
hazardous locations in the presence of Groups A, B, C, and
D atmosphere s.

Hazardous locations are defined in the National Electri­cal Code. Useful standards NFPA 437A and NFPA 437M
for the classification of hazardous areas may be ordered
from the National Fire Protection Association , Batterym arch
Park, Quincy, MA 02269. (See "Battery Pack" section for
additiona l infor ma t ion con cerning Ni-Cd batteri e s.)

Figure 4 - Install ing the Batt er y Pack

Reduced Capacity in Nickel/Cadmium
Batteries

Nickel-Cadmium batteries, in some applications, can de­velop a condition of reduced capacity, sometimes called
"Memory E f fe c t. " This co ndition may oc cu r whe n :

1. The battery is continuously overcharged for long
periods of tim e.

25

LBI-38957

2. A regular duty cycle is perfo rm ed whic h a llows the
battery to expend only a limited portion of its ca­pacity.

If the nickel-cadmium battery is only sparingly or sel­dom used and is left on continuous charge for one or two
months at a time, it could experience reduced capacity. On
the first discharging cyc le , the out put vol ta ge could be suffi ­ciently lowered to reduce the battery’s hours of useful serv­ice.

The most common method of causing this li mited capa c­ity is regularly performing short duty cycles; when the bat­tery is operated so that only a portion (2%) of its capacit y is
expended. This type of operation can cause the battery to
become temporarily inactive and show a severe decrease in
the abi li ty t o de li ve r at ful l-r at e d ca pa c it y.

Any nickel-cadmium battery showing signs of reduced
capacity should be carefully checked before being returned
under warranty or scrapped. If reduced capacity is a fact,
the following proc e dur e ma y restore cap ac i ty:

Figure 5 - Typical Ni-Cd Cell Voltage Discharge Curve

1. Discharge the multi-cell battery at the normal dis­charge rate until the output voltage is approxi­mately 1 volt per cell. This equals 6 volts output
for current PCS Personal radio ba tte ries.

Refer to the Typical Ni-Cd cell discharge curve in
Figure 5 below. Note the flatness of the discharge
voltage. Discharging below the knee of the curve
does not give added service. Experience shows
discharging below 1.0 volt is not necessary for re­conditioni ng a cel l.

2. Charge the cell a full cycle using an appropriate
charger.

3. This procedure should be repeated . Perform in g the
rated discharge and charge cycle at least twice
should sufficie ntly restor e the battery.

Disposal

The product that you have purchased contains
a rechargea ble battery. Th e battery is r ecycla­ble. At the end of its useful life, under vari­ous state and local laws, it may be illegal to
dispose of this battery into the municipal

waste stream. Check with your local solid
waste officials for details in your area for recycling options
or proper disposal. Call Toll Free 1-800-822-9362 for infor­mation and/or procedures for returning rechargeable batter­ies in your state. (See "Intrinsically Safe Usage " se cti on for
additiona l infor ma t ion con cerning Ni-Cd batteri e s.)

26

MECHANICAL PARTS BREAKDOWN

LBI-38957

27

LBI-38957

MECHANICAL PARTS LIST

PCS MECHANICAL PARTS

ISSUE 1

SYMBOL PART NO. DESCRIPTION

1 19D902180P10 Front Cap Assembly (Conv.)

2 19B801570P2 P901 Conne ctor Hold er.
3 19A705662P1 P901 Connector "MOE" .
4 19D902631G2 Audio/Logic Board (A2).
5 19A702364P310 Machine screw: M3-0.5 x 10. (Quantity 4).
6 19A702364P304 Machine screw: M3-0 .5 x 4. (Quanti ty 5).
7 19B801572G1 RF Shield.
8 19B801492P2 Power Module Mounting Clip. (Quantity 2).
9 19D438222G1 Transmit/Rec eive Board (A1) 136-153 MHz.

10 19D902175G1 Rear Co ver Ass embl y.
11 19A705732P333 Machine screw: M3-0.5 x 33. (Quantity 2).
12 19A702270 P2 BNC Antenna Connector.
13 19A143453 P1 Setscrew: #3-48 x .125 inch.
14 19A705732P329 Machine screw: M3-0.5 x 29. (Quantity 2).
15 19B801620P10 Antenna (VHF).

16 19A705293P1-3, 5 Battery.

19D902180G11 Front Cap Assembly (Conv./DTMF)

19D438222G2 T rans mit/Receive Board (A1) 150-174 MHz.
19D438262G1 T rans mit/Receive Board (A1) 403-440 MHz.
19D438262G2 T rans mit/Receive Board (A1) 440-470 MHz.
19D438262G3 T rans mit/Receive Board (A1) 470-512 MHz.

19B801621 P1, 2 Antenna, Flex (UHF).
19B801620 P1-3 Antenna, Heli ca l (UHF)

Ericsso n Inc .

Priva t e Radio Systems
Mountai n View Road
Lynchburg, Virgi nia 24502
1-800-528- 7711 (Outside USA, 80 4-528-771 1) Printed in U.S. A.