Dataradio G3 Руководство по установке - Страница 17
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Печатать страницуTable 2 - Tests
STEP
ACTION
G3 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
2
Connect and save config
Press Dataradio test com-
mands Get button
3
Main transceiver Output
Power
Command TXON (Unmod)
4
Main transceiver Reflected
Power
Command TXON (Unmod)
5
Carrier Frequency Error
Command TXON (Unmod
4
TX Deviation (in kHz)
Command TX7 (Modulated)
Carrier will be modulated with a
1 kHz tone.
6
Set the service monitor to generate at the unit antenna jack the RF levels mentioned below. The carrier generated
Main Rec. RSSI checks
7
-70dBm
-110dBm
-120dBm
8
Aux Receiver
repeat as per step 7
1 (unless you have set a lower value). Note that readings less than 30 may be due to losses in cables used for testing. Check also
your wattmeter frequency calibration curve. Do not be too ready to condemn the transmitter.
156-90000-508
EXPECTED RESULTS at
25°C
30W
< 5% of forward power or as
specified by System Eng.
± 300 Hz
8.0kHz
Tolerance is +5%, -10% for all bit rates.
should be modulated with a 1.0 kHz tone at deviation as per step 4 above.
- 70 dBm +/-3
-110 dBm +/-3
-120 dBm +/- 3
same as step 7
CHECKLIST A
MEASURE WITH
Table 1 - G3
as per
as per Dataradio test commands Help content
Service monitor
set to read power
or
50W in-line watt-
meter
10W in-line watt-
meter
Service monitor
set to read fre-
quency error
Service monitor set
to read deviation
(IF filter set to Mid
or 30 kHz position)
Dataradio test
commands
Dataradio test
commands
12
IF NOT?
LEDs indications
Refer to factory technical
support.
Check for bad connections,
damaged coax cable, etc.
Refer to factory technical
support.
Refer to factory technical
support.
The RSSI checks give a gen-
eral indication of receivers'
health
Refer to factory technical
support only if RX data per-
formance degradation is no-
ticed combined to out of tol-
erance RSSI readings.
G3 Installation Guide