AMT-70/AMT-73/AMT-75 Installation and Operation
DESCRIPTION SPECIFICATION
17
Configurable Forward Error Correction
Rate 1/2, 2/3, 3/4, 5/6 and 7/8 convolutional encoding K=7.
Optional: Reed Solomon outer (based on DVB-S/ DVB-DSNG standards)
with convolutional inner coding or
Enhanced Turbo code rate range: between 0.448 and 0.914
(see 9.1 for details).
Intelsat FEC rates from 16kbps to 60 Mbps (8PSK)
DVB compliant rates from 64kbps to 110 Mbps
Turbo data rates from 64kbps to 140 Mbps
RF Output Connector N-type, (F) for L-Band
Optional: CPR137 contact
Impedance: 50
Return Loss: ≥10 dB
RF Output Frequency L-Band: 950 to 1750 MHz, option to 2000MHz, variable in 100 Hz steps
Optional C-Band: 5.850 to 6.425 GHz, variable in 100 Hz steps
RF Output Power Range: 0 to -25 dBm, adjustable in 0.10 dB increments
Accuracy: ± 0.5 dB
Temp Stability: ± 0.25 dB
Equipment Reference Frequency & Phase
Noise
Reference Frequency: 10 MHz
External Ref Level: 0 dBm ± 2 dB
Internal Freq Stability: Stratum-1 (0.15 ppm due to all sources)
BUC Supply 24V or 48V DC (Optional)
DEMODULATOR
Data Rate 16 Kbps to 140 Mbps, variable
Data Rate Options 16kbps to 10Mbps, 20Mbps, 52Mbps and 140Mbps
Symbol Rate 32 KSymbol to 40 MSymbol
Data Scrambling Polynomial Intelsat V.35 or Intelsat Synchronous or DVB Compliant
Demodulator Type & FEC Rate
Note:
Refer to 9.3
for Turbo Code Rates.
BPSK:
Intelsat 1/2,3/4,7/8
DVB 1/2, 2/3, 3/4, 5/6, 7/8 with RS (204,188) Outer Code
eTPC Rate 2/5 ,3/5, 3/4, 4/5, 7/8, 8/9, 19/20
QPSK / OQPSK:
Intelsat 1/2, 3/4, 7/8
Selectable Intelsat (219,201) or RS (126,112) Outer Code, Optional
DVB 1/2, 2/3, 3/4, 5/6, 7/8 with RS (204,188), Optional
eTPC Rate 2/5, 3/5, 3/4, 4/5, 7/8, 8/9, 19/20, Optional
8PSK:
Intelsat IESS310 2/3 PTCM Inner code
Selectable Intelsat (219,201) or RS (126,112) Outer Code, Optional
DVB-DSNG PTCM Rate 2/3, 5/6, 8/9 with RS(204,188), Optional
eTPC Rate 3/5, 3/4, 4/5, 7/8, 8/9, 19/20, Optional
16QAM:
DVB-DSNG PTCM Rate 3/4, 7/8 with RS(204,188) code, Optional
eTPC Rate 3/4, 4/5, 7/8, 8/9, 19/20, Optional
IF Input (Option) 2 x BNC, (F) for 70 MHz / 140 MHz
Impedance: 50
Return Loss: ≥10 dB
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