Multitone RPR 583 User manual

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RPR 583
TM1212 Issue 1 Page (i)
TECHNICAL MANUAL
for
RADIO PAGING RECEIVER
MODEL RPR 583
Printed and Published in England

RPR 583
TM1212 Issue 1Page (ii)
COMPANY LIABILITY
The information in this manual has been carefully compiled and checked for technical
accuracy. Multitone Electronics plc accept no liability for inaccuracies or errors. In line with
the company policy of technical advancement, the information within this document may be
changed. The user should ensure that the correct issue of the document is used. Comments
or correspondence regarding this manual should be addressed to:
Multitone Electronics plc
Technical Publications
Beggarwood Lane
Basingstoke
Hampshire
RG23 7LL
England
ISSUE DATE
1July 1999
©1999 Multitone Electronics plc

RPR 583
TM1212 Issue 1 Page (iii)
CONTENTS
Page (i) Title Page
Page (ii) Company Liability
Page (iii) Contents
Page (iv) Effective Page List
Page (v) Safety Summary
Warning
Caution
Section 1 Introduction and Specification
Section 2 Operating Instructions
Section 3 Technical Description
Section 4 Installation & Commissioning
Section 5 Servicing
Section 6 Spare Parts List
Section 7 Diagrams

RPR 583
TM1212 Issue 1Page (iv)
EFFECTIVE PAGE LIST
Page No. Issue Page No. Issue Page No. Issue Page No. Issue
(I) 12-11 1
(ii) 12-12 1
(iii) 12-13 1
(iv) 12-14 1
(v) 12-15 1
(vi) 12-16 1
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1-2 12-18 1
1-3 13-1 1
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1-5 13-3 1
1-6 13-4 1
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2-2 13-6 1
2-3 13-7 1
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2-6 13-10 1
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RPR 583
TM1212 Issue 1 Page (v)
THE RECEIVER SHOULD NOT BE CARRIED INTO AREAS WHERE EXPLOSIVE GASES
MAY BE PRESENT.
SAFETY SUMMARY
The following information applies to both operating and servicing personnel. General Warnings
and Cautions will be found throughout the manual, where they apply, which refer to the applicable
part of this summary.
WARNING statements identify conditions or practices that could result in personal injury or loss
of life.
CAUTION statements identify conditions or practices that could result in equipment damage.
WARNING
CAUTION
STATIC SENSITIVE DEVICES ARE USED WITHIN THIS EQUIPMENT. CARE MUST BE
USED TO ENSURE DAMAGE TO THESE DEVICES IS NOT CAUSED BY HIGH LEVELS OF
STATIC ELECTRICITY. SPARE BOARDS OR COMPONENTS SHOULD BE STORED IN
ANTI-STATIC PACKAGING WHEN NOT INSTALLED IN THE EQUIPMENT.
PROTECT THE RECEIVER FROM LIQUIDS, STRONG MAGNETIC FIELDS AND EXTREME
TEMPERATURES. DO NOT LEAVE THE RECEIVER EXPOSED TO STRONG SUNLIGHT.
AREAS SUCH AS WINDOW LEDGES ARE TO BE AVOIDED.

RPR 583
TM1212 Issue 1Page (vi)
INTENTIONALLY BLANK

RPR 583
TM1212 Issue 1 Page 1 - 1
SECTION 1
INTRODUCTION & SPECIFICATION
CONTENTS: Page
1.1 INTRODUCTION 1 - 2
1.2 FEATURES 1 - 2
1.3 SPECIFICATIONS 1 - 3
1.3.1 Receiver Performance 1 - 3
1.3.2 Power Supply 1 - 4
1.3.3 Code Format 1 - 4
1.3.4 Memory 1 - 4
1.3.5 Displays, Controls and Alerts 1 - 5
1.3.6 Operational Environment 1 - 5
1.3.7 Dimensions 1 - 5
1.3.8 Weight 1 - 5
TABLES:
1.1 Sensitivity Figures 1 - 3

RPR 583
TM1212 Issue 1Page 1 - 2
1.1 INTRODUCTION
The Multitone RPR 583 pager is a UHF receiver for On-site applications. The pager
receives alpha-numeric messages sent in Multitone Mk7 digital format.
The front panel of the unit has a Liquid Crystal Display (LCD) to display messages
and other information. The unit has a choice of fonts for the LCD which the operator
can select. The three buttons on the front panel are used to control the functions
of the unit.
If the unit receives a message which has more characters than the display can show,
the excess characters are stored. The front panel buttons are used to transfer the
stored part of the message to the screen as required.
Message alert is provided by an audible beep tone and/or by the unit vibrating. The
front panel buttons are used to select the preferred alert (where this option has been
enabled).
Power for the unit is supplied by a single AAA battery. The unit has the facility to be
used with an ‘absence/charging’ rack. The external contacts provide the interface
for charging the rechargeable battery (where fitted) and for the exchange of data
between the unit and the base station. A door on the rear of the unit gives access
to the battery compartment.
A back-up supply for the unit is available when the battery is changed. The back-up
supply is provided by a large-value capacitor, mounted on the decoder board in the
unit. The capacitor, when fully charged, can maintain data in the unit for more than
5 minutes.
The unit case is a 2-piece plastic moulding secured by two cross-head screws. A
lanyard is supplied with the unit which can be fastened to the case and the attached
clip used to secure the unit to a suitable object e.g. belt, or the holster also supplied.
1.2 FEATURES
CDisplays 2 or 4 lines of characters
CMessage Store
CDisplay Illumination
CDate/Time Display
CSelectable Alert - Audible Beep and Vibration
CAlarm
CTimed-off Mode
CLow Battery Warning
CAbsence/charging rack connections

RPR 583
TM1212 Issue 1 Page 1 - 3
1.3 SPECIFICATIONS
1.3.1 Receiver Performance
Frequency Range: 430 MHZ through 470 MHZ
Frequency Bands:
Band 1: 430.000 MHZ - 434.999 MHZ
Band 2: 435.000 MHZ - 439.999 MHZ
Band 3: 440.000 MHZ - 443.999 MHZ
Band 4: 444.000 MHZ - 446.999 MHZ
Band 5: 447.000 MHZ - 450.999 MHZ
Band 6: 451.000 MHZ - 456.999 MHZ
Band 7: 457.000 MHZ - 462.999 MHZ
Band 8: 463.000 MHZ - 469.999 MHZ
Channel Spacing: 25kHz
Intermediate Frequencies: 45MHz and 455kHz
Crystal Frequencies (except Band 4):
Local Oscillator: Carrier Frequency - 45MHz
3
2nd Oscillator: 44.545MHz Band 4:- 45.455MHz
Sensitivity:
The sensitivity figures quoted in Table 1 assume an ambient temperature in the
range 18 EC through 25 EC. The battery voltage should be above the low battery
trigger point of approximately 1.15 volts. At temperatures between the ambient and
maximum / minimum, performance is at an intermediate value. At temperature
extremes degradation of sensitivity shall not exceed 6dB.
Table 1.1: Sensitivity Figures
MEASUREMENT
MODE
BEST
POSITION,
GUARANTEED
MINIMUM
BEST
POSITION,
TYPICAL
TEM CELL
(dBm),
TYPICAL
On Pole 27 dBµVm 20 dBµVm -105 dBm
-1 -1

RPR 583
TM1212 Issue 1Page 1 - 4
NOTE: The following performance figures are typical for an ambient temperature
range of 15 EC through 35 EC.
Adjacent Channel Selectivity: >60 dB
Image Response: >50 dB
Spurious Response: >50 dB
Intermodulation Response: >55 dB
Co-channel Rejection: >-6 dB
1.3.2 Power Supply
Battery Type:
Disposable Alkaline AAA (1.5 Volts Nominal)
Rechargeable Nicad AAA
Typical Battery Life (disposable): 800 hrs
1.3.3 Code Format
The Code Type is Multitone Mk7 digital format
1.3.4 Memory
Capacity: The unit can accept messages to a
maximum of 1024 alpha-numeric
characters. The pager can store a
maximum of 64 read or unread messages
and six archive messages.
Recall: Stored messages can be retrieved in any
order.