C1.6 T854 General Information M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
1.2 Specifications
1.2.1 Introduction
The performance figures given are minimum figures, unless otherwise indicated, for
equipment tuned with the maximum switching range and operating at standard room
temperature (+22°C to +28°C) and standard test voltage (13.8V
DC
).
Where applicable, the test methods used to obtain the following performance figures
are those described in the EIA and ETS specifications. However, there are several
parameters for which performance according to the CEPT specification is given. Refer to
Section 1.2.6 for details of test standards.
Details of test methods and the conditions which apply for Type Approval testing in all
countries can be obtained from Tait Electronics Ltd.
The terms “wide bandwidth”, “mid bandwidth” and “narrow bandwidth” used in this
and following sections are defined in the following table.
1.2.2 General
Number Of Channels … 128 (standard)
Supply Voltage:
Operating Voltage … 10.8 to 16V
DC
Standard Test Voltage … 13.8V
DC
Polarity … negative earth only
Polarity Protection … crowbar diode
Line Keying Supply (if required) …–50V
DC
Supply Current:
Transmit – T854 … 5.5A (typical)
Standby – T854 … 150mA (typical)
Operating Temperature Range …–30°C to +60°C
Time-Out Timer (optional) … 0 to 10 minutes adjustable in 10 sec-
ond steps
Channel Spacing
Modulation
100% Deviation
Receiver
IF Bandwidth
Wide Bandwidth 25kHz ±5.0kHz 15.0kHz
Mid Bandwidth 20kHz ±4.0kHz 12.0kHz
Narrow Bandwidth 12.5kHz ±2.5kHz 7.5kHz
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