User's Manual

MASTR III Repeater Calibration Procedure 5/16/2011
Raytheon JPS Communications, Inc. 2-8
8/22/2011
• Rx Offset provides a DC reference level adjustment for the receiver audio. This
adjustment allows the output reference DC level from the receiver to be matched by the
P25netCC Rx input.
• RSSI Gain provides level adjustment for the RSSI input.
• RSSI Offset provides a DC reference level adjustment for the RSSI input signal.
2.2.1 Equipment Setup
Connect the equipment as shown in Figure 2-7.
Figure 2-7 Rx Calibration Set-up
Aeroflex 3920
T/R
Radio Under
Calibration
Tx
P25CC
PC
PCCT Calibration
Software
CAT 5
50 ohm coax
Rx
50 ohm dummy load
50 ohm coax
P25CC Radio Interface Cable