Tektronix TG8000 Service Manual

GPS7 module troubleshooting
Verify the configuration
Before beginni
ng any of these procedures, the GPS7 under test and the GPS7
reference unit must be configured to correctly use the GPS signal. If they do not
have the correct configuration it will cause p roblems while troubleshooting.
The best way to ensure a common setup is to set both instruments to the factory
presets:
1. Press the MODULE button until TG8000 appears.
2. Press ENTER
to select PRESET.
3. If needed, use the up (▲)ordown(▼) arrow buttons to select Re call.
4. Press the left (◄) arrow button until Factory Preset appears.
5. Press the ENTER buttontoloadthepreset.
6. When loading is complete, press the BACK button to exit the Factory Defau lt
menu.
When finished troubleshooting, disconnect and reconnect the power cord, to cycle
the power. This will return the unit(s) to the user settings that were in effect before
invoking the factory presets.
Check the GPS antenna
signal source
For proper operation, an outside antenna signal source must be connected to the
GPS7 module, and functioning correctly. If a sufficient signal is not applied to the
antenna connector, the GPS7 module will not operate properly. Use this procedure
to verify the antenna signal:
1. Press the MODULE button to select GPS7 [1].
2. If necessa ry, use the up (▲)ordown(▼) arrow buttons to select STATUS.
3. Use the left (◄)orright(►) arrow buttons to select Signal Quality.
Wait for the Signal Quality readout to stabilize. This may take several minutes.
4
.
C
heck Signal Quality and Sats.
5. If signal quality is ≥30 and the number of detected satellites is ≥4, then end
t
his test. If not, then continue.
6. If the GPS7 module under test is the antenna power source, check that the
GPS7 module is set to the correct antenna voltage:
a. Press the up (▲) or down (▼) arrow buttons to select GPS SETUP.
b. Press the ENTER button to enter the setup submenu.
c. If necessary, use the up (▲)ordown(▼) arrow buttons to select
ANTENNA POWER.
10–12 TG8000 Multiformat Test Signal Generator Service Manual

Tektronix TG8000 Specifications

General

Brand	Tektronix
Model	TG8000
Category	Portable Generator
Language	English