Motorola Solutions Inc. 99FT4100 Manual De Usuario

Station

Bottom Panel

13.6 V DC

Tx Input 

Port

Wattmeter

20 dB Pad

Service Monitor

or Counter

Transmit

The procedure outlined in this section is used to set the receive output audio level from the repeater for
a given RF deviation of the received RF signal. Perform this procedure any time the Rx audio level
needs adjustment.

1 Connect the repeater’s receiver antenna port to the Communication Analyzer.

2 Power the repeater from either an AC or DC source.

3 Launch the Tuner application and click Read to read the softpot values.

4 Under the RX menu in the tree view, select Rx Rated Volume. (See 

Figure 23: RX Menu tree

(Rx Rated Volume) on page 67

).

5 Set the Communication Analyzer to output a -47 dBm RF signal modulated with a 1 kHz tone at

60% of full deviation on the tuning frequency. The tuning frequency is the value displayed on the
Tuner GUI under the heading of “Frequency Points”.

NOTICE: The Tuner aligns this parameter in a 12.5 kHz channel spacing, so 60% is 1.5
kHz of deviation. If Radio Management (RM) is set for 25 kHz operation, the repeater
automatically scales the deviation by a factor of two when it is outside the Tuner
environment.
Programmed TPL and DPL squelch requirements are automatically disabled for the
tuning frequency while in the Tuner environment.

6 Adjust the softpot value until the desired receive audio level is achieved at pin #7 (in reference to

ground) on the Aux connector. The ground connection provided by the Aux connector is pin 4.

MN003557A01-AA

Chapter 8:  SLR 1000 Programming and Tuning

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