Specifications; General Description; Channel Capacity; Ctcss - RF Technology Eclipse Series Operation And Maintenance Manual

7 SPECIFICATIONS

7 Specifications

7.1 General Description

The receiver is a high performance, frequency synthesized, narrow band FM unit which can
be used in conjunction with transmitter and power supply modules as a base station or as a
stand alone receiver. All necessary control and 600 Ohm line interface circuitry is included.

7.1.1 Channel Capacity

Although most applications are single channel, it can be programmed for up to 100 channels
numbered 0-99. This is to provide the capability of programming all channels into all of the
receivers used at a given site.

7.1.2 CTCSS

The CTCSS tone or no tone can also be programmed for each channel. Each channel number
can represent a unique RF and tone frequency combination.

7.1.3 Channel Programming

The channelling information is stored in a non-volatile memory chip and can be programmed
via the front panel test connector using a PC and RF Technology supplied TecHelp/ Service
Monitor 2000 software.

7.1.4 Channel Selection

Channel selection is by eight channel select lines. These are available through the rear panel
connector.
A BCD active high code applied to the lines selects the required channel. This can be
supplied by pre-wiring the rack connector so that each rack position is dedicated to a fixed
channel.
BCD switches inside the receiver can be used to pre-set any desired channel. These
eliminate the need to externally select the channel.

7.1.5 Microprocessor

A microporcessor is used to control the synthesizer and squelch functions and facilitate the
channel frequency programming. With the standard software it also can provide some
rudimentary fault monitoring and reporting.
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RF Technology R800 Page 15