User's Manual

TM 1184 Issue 1 AL1 (May 1997) Page A1 - 3
INTRODUCTION
1. This Appendix outlines the installation and operation of the Radio Paging
Serial Encoder (Transmitter/Encoder) model RPE 673. The Serial Encoder utilises the
existing RPT 633 Transmitter PCB and, whenever necessary, reference is made
to the appropriate section in the main body of this manual.
ROLE
2. The Multitone RPE 673 is a single channel radio paging Serial Encoder operating in the
UHF frequency band. The Serial Encoder provides paging facilities for Mk6 or Mk7 code
format alphanumeric and speech radio paging systems. The Serial Encoder can be used
to call up to 10,000 radio paging receivers.
PHYSICAL CONSTRUCTION
3. The RPE 673 consists of an Encoder PCB combined with a 2.5W Transmitter
PCB (as used in RPT 633) together in one moulded plastic housing.
SPECIFICATION
NOTE: For Transmitter characteristics and crystal frequency calculation refer to
Section 1.
Encoder
4. The performance characteristics of the Encoder are as follows:
a) Protocol: ESPA 4.4.4. or MEP (Determined by firmware)
b) Code Format: Multitone Mk6 or Mk7 (Programmable)
c) Paging Addressees: 10,000
d) Beep Codes: Eight
e) Message Transmission: Up to 60 alphanumeric characters
f) Speech Transmission: Duration is unlimited and under the control of the
External Device (speech is applicable only when
ESPA 4.4.4. protocol is used)