LBI-38908
10
SETTING TRACKING DATA
Normally, tracking data is set at the factory and need not be reloaded. However, the following repair situations
require reloading some or all of the tracking data:
SITUATION NEW TRACKING DATA REQUIRED
Replace PA module RF Power, Squelch (Reload if necessary)
Replace TXRX module RF Power, Modulation Deviation, Squelch, Feature Encryption, Data
Offset
Replace Control Unit None
Replace synthesizer Board Modulation Deviation, Data Offset
Replace Logic Board RF Power, Squelch, Modulation Deviation, Feature Encryption, Data
Offset
To reload Tracking Data, connect the radio in the
appropriate configuration as shown in Figure 1 or 2, and
perform the following steps:
1. When using the PC Programming Software, make sure
the radio is programmed in the following sequence:
a. Customer Operational Software (If necessary).
b. Tracking Data (1st Iteration - Tracking Data
originally shipped with the radio is a good starting
point.
c. Feature Encryption File (If necessary). Note that in
order to load an Encryption File into a new Logic
board, After Market Services Department must
first be contacted at 1-800-368-3277 for the
authorization code. Otherwise, the file will not
load.
d. Personality, which contains a CONVENTIONAL
SYSTEM using the frequencies given in Table 2
or Table 3.
2. Connect the radio unit in the normal operating
configuration. Activate the radio unit and using a
Service Monitor HP8920A or equivalent. Measure
transmitter power, modulation deviation and squelch
threshold for each of the applicable frequencies given
in Table 2 or Table 3. Measurements should be within
the following limits:
PARAMETER
LIMIT
TX Modulation Deviation 4.4 ± 0.1 kHz
TX High Power
100/80 Watt Model 100/80 +4, -0 Watts
40/35 Watt Model 40/35 +2, -0 Watts
20 Watt Model 20 +0, -1 Watt
TX Mid Power
(20 Watt Model)
12 +0.5, -0.5 Watts
100.80 Watt Model 50/40 +2, -0 Watts
50/35 Watt Model 25/17 +1, -0 Watts
20 Watt Model 6 +0.5, -0.5 Watts
RX Squelch Threshold 8 +1, -0 dB SINAD
3. If measurements are within limits, the job is complete.
If not, reconnect in the programmingconfiguration
according to Figures 1 or 2 and execute the
programming maintenance software"MRKMAINT".
Display the Tracking Data screen. For those
frequencies where measurements arenot within limits,
enter new Tracking Data, following instructions on the
screen. Program into radiopersonality and exit.
4. Repeat Steps 2 and 3 until measurements at every
frequency given in Table 2 or 3 are within thelimits
specified above.
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