Norsat International Inc. NSLK3200 ユーザーズマニュアル
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Page 83
•
25W SSPA: 9000 - 12000 mA.
Troubleshooting
1.
Ensure that the transmitter is turned ON; refer to the
T
RANSMITTER
C
ONTROL
screen.
2.
If the current is too low, ensure that one end of the multi-conductor IFL
cable is plugged in to the multipin connector, labeled
cable is plugged in to the multipin connector, labeled
DC/C
ONTROL
, at the
back of the baseband unit, and the other end is plugged in to the multipin
connector, labeled
connector, labeled
DC/C
ONTROL
, on the dish elevation support panel.
3.
If the problem persists, inspect the cable and both connectors; replace if
necessary. If no replacement is available, contact Norsat Customer Sup-
port.
necessary. If no replacement is available, contact Norsat Customer Sup-
port.
4.
If this value is in the high or low warning (Y
ELLOW
) range, a device inside
the SSPA may be degraded; contact Norsat Customer Support.
N
OTE
If this value exceeds the maximum allowable range, the SSPA will automati-
cally shut down.
cally shut down.
SSPA Temperature
This is the temperature of the heat sink inside the SSPA.
Operating Range:
•
-30 to +80 degrees Celsius
The normal operating temperature will depend on the output power and the
ambient temperature.
ambient temperature.
Troubleshooting
1.
If this value is in the high warning (Y
ELLOW
) range, ensure that the SSPA
fan is spinning.
2.
Inspect the cooling vents on the SSPA to ensure that they are not clogged
by debris or foreign matter.
by debris or foreign matter.
N
OTE
If this value exceeds the maximum allowable range, the SSPA will automati-
cally shut down.
cally shut down.
PLL Lock
The transmit frequency is generated by a set of oscillators phase locked to
internal temperature stable reference. These oscillators must be locked at all
times in order to insure an accurate transmit frequency. The oscillators,
located in the baseband unit, are responsible for generating the L-band fre-
quency (between 950-1450 MHz).
internal temperature stable reference. These oscillators must be locked at all
times in order to insure an accurate transmit frequency. The oscillators,
located in the baseband unit, are responsible for generating the L-band fre-
quency (between 950-1450 MHz).
N
OTE
The oscillator that is located inside the transmitter that converts the L-band
frequency to Ku-band frequency is not monitored by this status indicator. If the
oscillator inside the transmitter is out of lock, then the transmitter will automat-
ically shut down.
frequency to Ku-band frequency is not monitored by this status indicator. If the
oscillator inside the transmitter is out of lock, then the transmitter will automat-
ically shut down.
Range:
•
0 to 1
The status bar will indicate:
•
0 (R
ED
): if the oscillator(s) is not locked