Table 5 - Test Checklist
TEST CHECKLIST
STEP
ACTION
EXPECTED RESULTS at
25
°
C
MEASURE WITH
IF NOT?
GeminiG3 units are set and characterized at the factory to optimize performances. It is not recommended to try to readjust the units.
1
Power-up LED Sequence
as per
Table 2 - G3 LEDs indications
For steps below, refer to the
Maintenance
►
RF Tests
WEB page
2
Transmitter Output Power
1
In “Test Tone” section of
the page
Select
Unmodulated –
Press Execute
Note: Must be in Test Mode
UHF:
40 watts
UHF-ACMA:
25 watts
700MHz:
27 watts
800MHz
: 35 watts
Tolerance: all +10%, -10%;
Factory-settable down to 10
watts as per customer request
Service monitor
set to read power
or
50W in-line
wattmeter
Refer to factory technical
support.
3
Transmitter Reflected
Power
In “Test Tone” section of
the page
Select
Unmodulated –
Press Execute
Note: Must be in Test Mode
< 5% of forward power or as
specified by System Eng.
10W in-line
wattmeter
Check for bad connections,
damaged coax cable, etc.
4
Carrier Frequency Error
In “Test Tone” section of
the page
Select M
odulated –
Press
Execute
Note: Must be in Test Mode
< ±300 Hz @ 25
o
C ambient
or < ±1 ppm from –30 to +60
o
C
Service monitor
set to read fre-
quency error
Refer to factory technical
support.
1
(Unless you have set a lower value). Note that readings less than 40 watts (UHF model), 25 watts (UHF-ACMA model), 27
watts (700MHz model) and 35 watts (800MHz model) may be due to losses in cables used for testing. Check also your watt-
meter frequency calibration curve. Do not be too ready to condemn the transmitter.
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