Specifications; Introduction - Tait T850 II Series Service Manual

B1.6 T855 General Information
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 parame-
ters for which performance according to the CEPT specification is given. Refer to Sec-
tion 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.
Wide Bandwidth
Mid Bandwidth
Narrow Bandwidth
Sensitivity and distortion figures are stated for standard operating conditions which
includes audio de-emphasis. Note that the sensitivity and distortion figures will be
degraded when flat audio is selected.
De-emphasised Audio
Flat Audio
a. The letters in this column refer to the identification letters screen printed onto the PCB be-
side each set of links.
31/09/98
Channel Spacing
25kHz
20kHz
12.5kHz
Link PL210
1-2 (A-B)
2-3 (B-C)
Modulation
100% Deviation
±5.0kHz
±4.0kHz
±2.5kHz
a
Link PL220
2-3 (E-F)
1-2 (D-E)
M850-00
Receiver
IF Bandwidth
15.0kHz
12.0kHz
7.5kHz
a
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