Getting started
5. Set the antenna
power to 3.3 V:
a. Press the MODULE button to navigate to the GPS7 module.
b. Use the up (▲)ordown(▼) arrow button to select GPS SETUP.
c. Press the ENTER button.
d. Use the up (▲)ordown(▼)arrowbuttontoselectAntenna Power.
e. Use the left (◄)orright(►) arrow button to select 3.3 V.
f. Press the ENTER button.
6. Check that the voltmeter shows between 3.3 V and 4 V.
7. Use the left (◄) arrow to set the antenna voltage to 5 V.
8. Press the ENTER button.
9. Check that the voltmeter shows betwe en 5 V and 6 V.
Antenna current and fault thresholds.
1. Connect the BNC-to-Banana-plug adapter to the voltmeter.
2. Connect the BNC T to the adapter.
3. Set the antenna power to 5 V:
a. Press the MODULE button to navigate to the GPS7 module.
b. Use the up (▲)ordown(▼) arrow button to select GPS SETUP.
c. Press the ENTER button.
d. Use the up (▲)ordown(▼)arrowbuttontoselectAntenna Power.
e. Use the left (◄)orright(►)arrowbuttontoselect5V.
f. Press the ENTER button.
4. Connec
ta75
Ω BNC cable to the other end of the BNC T connector.
5. Connect the other end of the cable to the antenna input on the rear of the
module.
6. Check that the LED located between the DSUB connector and the antenna
input on the rear panel of the module is flashing green. Green indicates an
open circuit.
7. Apply a 75 Ω terminator to the BNC T and check that the voltage is between
4.5Vand5V.
8. Check that the LED on the module back panel is a steady green. This indicates
a nominal load.
9. Connect the second BNC T and 75 Ω terminator to the antenna system to
exceed the allowed antenna current.
1–28 TG8000 Multiformat Test Signal Generator User Manual
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