4-20
888-2685-001
12/24/07
WARNING: Disconnect primary power prior to servicing.
Ranger Commissioning Manual
Section 4 RF Testing
4.2.14.3 Setup & Test Equipment
Table 4-12 Spurious Emissions Setup
4.2.14.4 Spurious Emissions Procedure
In order to prevent overloading of the spectrum analyzer, a band-reject filter covering
the transmit channel is inserted in front of the analyzer. A high pass filter can be used
instead of a band-reject filter to measure the transmitter harmonics. Connect the
spectrum analyzer to the transmitter band pass filter output forward directional coupler
through the channel band reject filter or the high pass filter as documented.
Transmitter
Exciter
Status 1
Active on Exciter A
External GPS Active
Status 2
Active on Exciter B
External GPS Active
Table 4-13 Spurious Emissions Test Equipment
Spectrum Analyzer
RF Test Cables (with known and measured losses)
Summary of Contents for Ranger Series
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