Motorola Solutions Inc. 99FT5101 Manuel D’Utilisation
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MN002253A01-AD
Chapter 10: SLR 8000 Programming and Tuning
Chapter 10: SLR 8000 Programming and Tuning
5 Key up the base station/repeater by grounding Pin 2 of the Aux connector and measuring the
deviation
NOTICE: CPS must have Pin 2 configured as an active low with the PTT function.
6 De-key the base station/repeater.
The deviation should meet the limits shown in the following table.
Channel Spacing
Relative Standard Deviation (RSD)
92% of RS
Tolerance
(kHz)
(kHz)
(kHz)
(Hz)
12.5
2.5
2.3
+0/-50
20.0
4.0
3.68
+0/-80
25.0
5.0
4.6
+0/-100
NOTICE:
• The repeater is factory-tuned in accordance to this procedure and specification.
• Verification is performed outside of the Tuner application, such as in normal mode.
10.7.3
Tuning the Modulation Limit (with Tx Data or PL)
Procedure:
1 Connect the base station/repeater's antenna port to the attenuation pad, if necessary, before
connecting to the Communication Analyzer.
2 Turn on the base station/repeater using an AC or DC source.
3 Launch the Tuner application.
4 To read the softpot values, click Read
5 Under the TX menu in the tree view, select Modulation Limit.
6 Enter the tuning frequency into the Communication Analyzer (the value displayed by the Tuner
application).
7 To key up the base station/repeater, click PTT Toggle.
8 Apply a 1 kHz signal at 1.2 Vrms to Pin 22 or Pin 1 of the J7 Aux connector.
• Signal ground is Pin 9 of the J7 Aux connector.
9 Adjust the Modulation Limit softpot to a value that limits the maximum deviation to "X"% RSD,
where "X" is equal to "92% RSD" minus "Tx Data's % RSD".
If Tx Data deviation is equal to 17%,
X = 92% - 17% = 75% as the maximum deviation limit.