135
transmitter and receiver. This Voice Loop feature can even be used to verify basic functionality of a P25
radio with an encrypted voice channel.
Figure 3.2.8.5-2
Main screen after pressing P25 Trunk soft key
Generate Modulation Type (P25 Trunk submenu)
Select the desired type of modulation (C4FM, LSM, or WCQPSK) for the generated signal required by
the receiver.
Voice Call (P25 Trunk submenu)
Select Start and Stop for the Voice Call test. The R8100 sends out a control channel message causing the
subscriber radio to transition to a voice channel. The analyzer transmits a 1011 Hz tone that should be
heard on the radio to confirm this transition.
Send Call Alert (P25 Trunk submenu)
Initiates a call alert to the subscriber radio under test to verify it is capable of registering and receiving a
call alert from a P25 base station. Messages in Meter Zone “Status” field show the activity during a Call
Alert.
Summary of Contents for R8100 SERIES
Page 19: ...19 Figure 2 1 2 Left and Right Sides of the R8100...
Page 164: ...164 Figure 2 2 7 7 5 Power Profile Frame with Markers...
Page 224: ...224 Figure 3 2 9 6 1 Submenu after pressing Options soft key in the Settings menu...
Page 243: ...243 PTC Test in Monitor Mode Eye Diagram Display...
Page 244: ...244 Power Profile Display Linear and Circular Constellation Displays...
Page 245: ...245 Symbol Distribution Plot...
