Delta 403 Specifications download pdf (Page 7)

DESCRIPTION

General Electric DELTA-S mobile radio combinations

are completely solid state utilizing microcomputer technol-

ogy and integrated circuits to provide high quality - high

reliability radios. The DELTA-S radio is designed for use

in vehicles having a negative ground battery system. In

vehicles having a positive ground battery system a polarity

converter must be used. Standard combinations may be

equipped with:

• Microcomputer Controlled Frequency

Synthesizer

• Up to 32 channels

• 0.0002% or 0.0005% frequency stability

• UHS Preamplifier (Ultra High Sensitivity),

optional

• Tone and/or Digital Channel Guard, optional

The radio set is housed in a weather resistant case only

2 1/2 inches high. The radio is secured to the vehicle by a

bottom mounting plate, and is tamper proof when locked

into the plate. When unlocked, the handle can be pulled out

of the mounting plate or the top cover removed for servic-

ing. When pulled down, the handle can be used to carry the

radio.

The PA board is inserted into the radio from the top of

the frame, while the TRS board is inserted from the bottom.

There are no wires used in the basic radio. Interconnections

are provided by pins on the TRS board that mate with

connectors on the PA assembly. A power bus connects A+

and A- from the front connector to the PA assembly. The

PA board is isolated from ground (floating). Power is

supplied directly from the battery to the PA power output

stage.

The radio is of single-layer construction with all major

modules and tuning adjustments easily accessible from the

top of the radio.

Centralized metering jacks for the transmitter, receiver

and system functions are provided for simplified alignment

and troubleshooting.

Figure 1 - Typical Module Layout

LBI-31567

1 2 3 4 5 6 7 8 9 10

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Delta 403 Specifications Page 7