User's Manual

TB8100 Specifications Manual Reciter Specifications 13
© Tait Electronics Ltd June 2004
2 Reciter Specifications
This chapter provides specifications pertaining to the receiver and exciter
circuitry within the reciter module. However, the transmitter RF
specifications which pertain to the combination of exciter and power
amplifier are given in
“Transmitter RF Section” on page 29.
The performance figures given in these specifications are applicable only to
equipment operating as an integral part of a TB8100 base station. These
performance figures are minimum figures, unless otherwise indicated (e.g.
“typical”), for equipment tuned with the maximum switching range and
operating at standard room temperature (+22°C to +28°C [+71.6°F to
+82.4°F]) and standard test voltage (28VDC).
Where applicable, the test methods used to obtain these figures are those
described in the ANSI/TIA-603-B-2002 and ETSI-EN specifications. You
can obtain further details of test methods and the conditions which apply for
compliance testing in all countries from Tait Electronics Ltd.
Bandwidth The terms “wide bandwidth”, “mid bandwidth” and “narrow bandwidth”
used in this and following sections are defined in the following table.
Sensitivity and distortion figures are stated for standard operating conditions
which includes audio de-emphasis. Note that the sensitivity, distortion and
signal-to-noise figures will be degraded when flat audio is selected.
Channel Spacing
Modulation
100% Deviation
Receiver
IF Bandwidth
Narrow Bandwidth
(NB)
12.5kHz ±2.5kHz 7.5kHz
Mid Bandwidth
a
(MB)
a. Mid bandwidth is available only in H band reciters (400MHz to 520MHz).
20kHz ±4kHz 12kHz
Wide Bandwidth
(WB)
25kHz ±5.0kHz 15.0kHz