User Instructions

8 T800-32-0010 Fitting Instructions 419-83210-00 419-83210-00 T800-32-0010 Fitting Instructions 1
Figure 8 Pinouts for D-Range 2
1
2
3
4
5
6
8
9
10
2004f_01
DATA
DATA
Lock detect
Coaxial socket
(external
reference
frequency)
7
T800-32-0010 Paging Board
The T800-32-0010 PCB can be fitted to Tait T800 Series II transmitters to ena-
ble them to function as low-speed paging transmitters. This paging board is
for transmitters that will be connected to an external frequency standard. It is
a DFSK Modulator, suitable for POCSAG or similar paging data formats. Ref-
erence frequency stability is determined by the stability of the external stand-
ard. The PCB is not designed for use with 66 to 88MHz equipment.
Newer T800 transmittters have a Micromatch connector in the audio proces-
sor compartment. This simplifies installation.
This fitting instruction describes how to fit the PCB into existing T800 trans-
mitters. You need to be proficient in the soldering of SMD components. It
may be preferable to obtain a T800 transmitter already fitted with this board
from your Tait dealer or national sales office.
Parts Required
The T800-32-0010 kit should contain the following items:
1 x T800-32-0010 DFSK modulator board
1 x terminated coaxial cable
1 x T800-03-1000 auxiliary D-range kit
4 x M3 x 8 Taptite Pan Torx screws
1 x coaxial socket
1 x 47 ohm resistor SMD 0805
1 x terminated 8-way ribbon cable
1 x terminated 4-way ribbon cable
Installation
Caution:
The radio must be powered off for this modification. After modi-
fication, do not remove the coaxial lead from the socket unless the
radio is powered off.
1. Remove the TCXO module from the synthesiser compartment of the
T800 transmitter.
2. Fit the miniature coaxial socket (=SK710) and 47 Ohm SMD resistor
(=R705) to the PCB pads provided beneath the TCXO, as shown in Fig-
ure 1.