Trident Raider, Installation And Operation Manual

Page: 67 / 94

67
Raider Installation and Operation Rev. 1.4.2
Alignment Procedure
1. Make sure that all alignment procedures from the
Service
pull down menu have been performed
except for the
TX Wireline
,
Discriminator
and the
Aux TX Input
. These will need to be
performed separately.
2. Connect a telephone transmission test set, in the terminated mode, to the Line 1 input of J6 on
the rear of the station. Set it to transmit a 1004Hz tone at –20.0dBm.
3. Click on
Service
in the pull down menu and select
Station Alignment
. Now select the
TX
Wireline
button from
Audio Input/Output
. See Fig. 9.
4. After you click
TX Wireline
a window as shown in Fig. 10 will appear. With the Transmission
Test Set in the generate mode, type –20 in the box for the
Level of test tone
and click on
Save
.
The station will immediately auto-calibrate, temporarily store the value and then return you to
the
Station Alignment
window.
5. Connect the Raider controller to the MTR2000 station at this time. With the top cover of the
controller removed, install jumpers W22, W26 (remove W26 in the Raider) and W30 if they
are not already installed.
6. Remove the Telephone Transmission Test set and connect an Oscilloscope to pin 1 of U1 in the
controller. Connect a Service Monitor to the RX port of the MTR Station set in the generate
mode at an RF level of approximately –80dBm.
7. Generate a 1kHz tone deviating at 2kHz (1kHz for narrowband operation) and click on the
Discriminator
button in
Audio Input/Output
. See Fig. 9.
8. Adjust the slider, (see Fig. 11), to obtain a 2Vp-p signal on pin 1 of U1 measured with an
Oscilloscope. Click
Save
to return to the
Station Alignment
window of Fig. 9.
9. Set the Service Monitor to Receive on the Station’s transmit frequency. Move the controller’s
TX Test switch, SW4-2, to the down position and adjust the TX Data potentiometer, R57, to
obtain a 2Vp-p signal of low speed data, measured with an Oscilloscope, at pin 8 of U2.
10. Click on the
Aux TX Input
button under
Transmitter
, (see Fig. 9), and adjust the slider, as
in Fig. 12, to obtain 1kHz deviation (800Hz for narrow band operation) of low speed data as
measured by the service monitor. Click
Save
to temporarily save the calibration data.
11. Now, click
Save
from the
Station Alignment
window to permanently write all the calibration
data, from the previous steps, to the codeplug. If a “
Station Successfully Aligned
” message
appears in the Message Window, you may proceed to the
Alignment Procedure
beginning on
page 26 to complete system integration.
Motorola MTR2000 Repeater Interface - page 2 of 10