M8SL2-00-002-812 T800 Ancillary Equipment H1.5
© Copyright Tait Electronics Limited August 2004. All rights reserved.
1.4 External Frequency Reference
T800-06-0000 External Frequency Reference Kit
The T800-06-0000 kit provides an additional D-range plug/PCB assembly which incor-
porates a miniature RF connector to carry an externally generated 12.8MHz reference
signal into a T800 SL2 module. This enables the use of very high stability external refer-
ence oscillators for special applications.
The D-range PCB is also fitted with a Micromatch socket which can be connected to
SK805 in the microcontroller section via the supplied loom to provide access to the
channel change lines.
The kit comes complete with fitting instructions and all installation hardware.
T800-06-0001 External Frequency Reference Kit
The T800-06-0001 is the same as the T800-06-0000 kit with the addition of a special coax
cable for external frequency reference input. One end of this coax is terminated with a
miniature RF connector which fits into the D-range socket in an appropriate backplane
PCB to connect to a T800 SL2 module fitted with a T800-06-0000 kit. The other end is ter-
minated with a BNC connector which can be mounted on the rack frame.
T801-00 Frequency Reference Module
The T801-00 frequency reference module provides a high stability frequency source to
which the synthesiser within a T800 SL2 base station can be locked. The master standard
within the T801-00 is primarily intended to be rubidium, although high quality oven-
ised crystal oscillators can also be used in applications where more frequent readjust-
ment of frequency is acceptable. The T801-00 converts the output frequency from its
master standard to the 12.8MHz required by the T800 SL2 base station.
Refer to M801-00.
T801-10 OCXO Module
The T801-10 OCXO module provides a high stability frequency source to which the syn-
thesiser within a T800 SL2 base station can be locked. This will provide T800 SL2 trans-
mitters with the frequency stability required for simulcast transmission. The master
standard within the T801-10 is a high quality ovenised crystal oscillator (OCXO). Three
outputs are provided on the rear panel, which allows up to three T800 SL2 transmitters
to be referenced to the source oscillator.
Refer to M801-10.
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