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208495 REV B
Operations Manual, HPA2, Compact Outdoor SSPA
Notes:
1) The external reference option requires the system operator to provide system
reference to the ZBUC/SSPB. The system will not lock and will have no output
without external reference applied.
2) Internal reference option allows for either internal or external reference operation.
The 10 MHz crystal reference used in the internal reference of the ZBUC converter has the
following specifications:
Frequency Stability:
≤
±1 • 10
-8
over the temperature range -40 to +90 °C
≤
±1 • 10
-9
aging per day
≤
±5 • 10
-8
aging per year
Warm up time:
20 minutes for better than
≤
±1 • 10
-8
Phase
Noise:
10
Hz
-120
dBc/Hz
100
Hz -140
dBc/Hz
1
KHz
-145
dBc/Hz
10
KHz -152
dBc/Hz
100
KHz
-155
dBc/Hz
Frequency Accuracy:
Factory preset to ±1 • 10
-8
5.4 ZBUC FSK Monitor and Control
FSK Monitor and control comes standard with the ZBUC converter. This allows the Compact
Outdoor SSPB to be fully and remotely monitored and controlled through the system’s IFL. An
embedded controller enables remote communication and fault detection via the IF input
between the SSPA and a Teledyne Paradise Datacom Evolution Series L-Band modem. This
signal consists of a 650 KHz Frequency Shift Keyed carrier that is multiplexed onto the
L-Band input IFL along with the 10 MHz reference signal. The M&C functionality is explained
in detail in
Section 11
.
The FSK input has a center frequency of 650 KHz with a ±5% tolerance. The FSK deviation is
±60 KHz, with +60 KHz being a “mark” and -60 KHz being a “space”. The FSK input will work
over an input power range of -5 to -15 dBm. The FSK characteristics are summarized below:
Frequency
650 kHz ± 5%
FSK Deviation
± 60 kHz nominal (+60 kHz mark)
Deviation Tolerance
± 50 kHz minimum, ± 70 kHz maximum
Locking Range
± 32.5 kHz
Input Level Range
-5 to -15 dBm
Start Tone Time
10 ms minimum
See Teledyne Paradise Datacom document number 201410 for a full description of the VSAT
BUC Protocol.
