Motorola MTR2000 T5544 Instruction / Field Service Manual page 114

Routine Maintenance
Note
4
4. Launch the RSS application (under Microsoft Windows 3.1 , 95, 98 or
2000) and access the Alignment panel.
Refer to the RSS Startup Manual, 68P81096E15, for complete details on
installing and starting the RSS application.
5. With the mouse, press the PTT button on the Station Operation Controls
panel to key the station.
6. Adjust the reference oscillator slider (if necessary) by dragging it with the
mouse while observing the frequency reading on the frequency measuring
equipment. Continue adjustment until you obtain a reading as close as pos-
sible to the transmit frequency. (The RSS display indicates the current set-
ting of the transmit frequency within the possible range. This graph is
provided as a guide only and may not be used to adjust the frequency.)
Auto-Calibrate Alignment Procedure (Standard SCM Only)
Perform the following procedure to calibrate the station reference oscillator using
a 5/10 MHz external reference signal.
The accuracy of this procedure depends on the accuracy of the 5/10 MHz external
reference signal. Be sure the 5/10 MHz external reference signal provides the nec-
essary accuracy (as described in Table 1).
1. Connect the output of a stable 5/10 MHz reference source to the BNC con-
nector located on the front of the Station Control Module.
2. Set the 5/10 MHz source for a 1.0 ±0.5 Vrms output. The Station Control
Module senses the 5/10 MHz input and commences calibrating the refer-
ence oscillator using the 5/10 MHz signal as a reference.
3. Connect the station RSS port to a PC and start up the MTR2000 Radio Ser-
vice Software application.
4. Within the RSS application, access the Service menu Alignment window.
The Online Help associated with this window provides details for the fol-
lowing alignment functions:
- Reference Oscillator
- Audio Input/Output
- Receiver
- Transmitter
68P81096E39-B
09/30/05