Motorola CDM750 Manuel d'entretien et d'installation - Page 13
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mobile radio
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Overview
This section contains information about the control func-
tions, audio sources, audio states, programmable features
and operator instructions for the CDM Control Station.
General Description
The Control Station is an integrated base station package
designed for fixed locations. It serves as a local dispatch
point providing enhanced local control and supports com-
mon audio accessories such as a desk microphone or headset.
Performance
The Control Station was designed for the Professional Series
mobile radios. It is intended for fixed locations where protec-
tion from the elements (snow, rain, etc.) can be provided.
The station is relatively light and portable.
The fan is controlled by a thermal switch connected to the
power supply. This switching minimizes noise in office envi-
ronments while providing maximum cooling at elevated
ambient temperatures or during heavy transmit duty cycles.
The station is defined as intermittent transmit duty cycles,
but it may have surprisingly lower power slump when keyed
for long periods in an office shop environment.
General Specifications
Dimensions
8.3" W x 13.3" L x 7.5" H
(21.1cm W x 33.8cm L x 19cm H)
approx.
Weight
11.5 lbs (5.2 kg) approx.
Power Input
10.5 to 16 V dc
Input Current
Less than 1 Amp, full audio
Speaker Audio
1.5 W min. into 16 ohms at reference
Output
input
Transmit Audio
80mV RMS Nominal with nominal
Output
Mic. Inputs
Accessory Audio
1 W min. into 8 ohms at reference in-
Output
put
Headset Audio
160 mV at reference input
Output
Audio Distortion
Less than 3% THD
October, 2004
CDM Control Station Operation
Hum and Noise
Audio Frequency
Response
User Adjustments
Ambient Tempera-
ture
Humidity
Specifications Subject to change without notice.
Control Functions and Indicators
Transmit
The radio transmitter is keyed whenever PTT is activated
from one of the following sources: front panel Transmit but-
ton, desk microphone PTT, headset PTT, or PTT from an
accessory device. The Transmit LED, located above the
Transmit button on the front panel, is illuminated whenever
the transmitter is keyed in this manner.
Monitor
Before transmitting, the selected channel should be checked
for co-channel activity by using the Monitor function. RX
squelch is disabled when Monitor is asserted from any of the
following sources: front panel Monitor button, desk micro-
phone Monitor button, or Monitor from an accessory device.
The Monitor LED, located above the Monitor button on the
front panel, is illuminated whenever RX squelch is disabled
in this manner.
6880309N15-A
Section 2
Greater than 45 dB below rated out-
puts
+/- 3 dB from 300 Hz to 3000 Hz at 1
KHz ref.
Speaker audio level (on Radio)
Accessory RX audio output
Headset RX audio level
Intercom audio level
0° C to 50° C
90%, Non-condensing
2-1