User's Manual

NOTICE: Optimally, it is recommended to load pin #1 or #22 with the application source
impedance used during normal operation of the repeater.
4 Launch the Tuner application.
5 To read the softpot values, click Read.
6 Under the TX menu in the tree view, select Tx Audio Level. (See Figure 46: Tx Menu Tree (Tx
Audio Level) on page 93).
Figure 46: Tx Menu Tree (Tx Audio Level)
7 Enter the tuning frequency into the Communication Analyzer (the value displayed on the Tuner
GUI under the heading of “Frequency Points”).
8 To key up the repeater, click PTT Toggle.
9 Adjust the softpot value until 60% of the rated system deviation (RSD) is achieved.
NOTICE: The Tuner aligns this parameter in a 12.5 kHz channel spacing, so 60% is 1.5
kHz of deviation. If the CPS is set for 25 kHz operation, the repeater automatically scales
the deviation by a factor of two when it is outside the Tuner application.
10 To de-key the repeater, click PTT Toggle.
11 To save the new tuned softpot value into the repeater’s codeplug, click Write.
10.7
Modulation Limit Alignment
This feature is to set the modulation limit of the SLR 5000 Series Repeater.
NOTICE: A modulation limit alignment is not needed if the repeater is used in repeat mode.
This is always the case when the repeater is in digital mode.
10.7.1
Tuning the Modulation Limit (with no Tx Data and no PL)
Prerequisites: If data or PL signaling is applied to Pin 13 of the Aux connector, proceed to Tuning the
Modulation Limit (with Tx Data or PL) on page 95.
Procedure:
1 Connect the repeater's antenna port to the attenuation pad, if necessary, before connecting to
the Communication Analyzer.
2 Power the repeater from either an AC or DC source.
3 Apply a 1 kHz signal at 1.2 Vrms to Pin 1 of the Aux connector.
• Signal ground is Pin 9 of the Aux connector.
4 Launch the Tuner application.
5 To read the softpot values, click Read.
6 Under the TX menu in the tree view, select Modulation Limit.
MN001436A01-AD
Chapter 10: SLR 5000 Series Programming and Tuning
Send Feedback 93