User's Manual

Table Of Contents
10/19/07 888-2687-001 3-19
WARNING: Disconnect primary power prior to servicing.
Section 3 Operation/Adjustments
Ranger ™ Mobile Series
3.7.2.1 Output Setup
This screen is accessed by pressing the Output Setup button on the Output Service
screen in Figure 3-13. It is used to calibrate the filter input power and Total cabinet
Forward and Reflected power (after the filter).
It also calculates the VWSR protection thresholds of Foldback power and Fault
threshold and displays them at the bottom of the screen. These values are based on the
“Nominal Power Output” value entered into the System Setup screen in Figure 3-22 on
page 3-27.
The foldback level is calculated using a VSWR = 1.4:1. Therefore the actual
foldback power can be calculated as:
Foldback Power = Nominal Power Output x 0.0278
The fault threshold is calculated using a VSWR = 1.9:1. Therefore the actual
fault threshold can be calculated as:
VSWR Fault Threshold = Nominal Power Output x 0.0963
Figure 3-15 Output Setup Screen
To Figure 3-22
To Figure 3-13
Use the +/- buttons
to make this reading
match the measured
reading at the coupler
Calculated Values