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Specifications

Ku Band / DBS

 
In General

noise figure: 1.1 to 1.4 dB nominal
gain: 55 dB nominal
output power: + 5 dBm P1dB nominal

Frequencies
 RF frequencyIF frequency
Universal 10.7 - 12.75 GHz 950-2000 MHz
ECS Band (K1) 10.95 - 11.7 GHz 950 - 1700 MHz
DBS Band (K3) 11.7 - 12.5 GHz 950 - 1750 MHz
Telecom (K5) 12.5 - 12.75 GHz 1025 - 1275 MHz
US SBS (FSS) 11.7 - 12.2 GHz 950 - 1450 MHz
US DSS (DirecTV ) 12.2 - 12.7 GHz 950 - 1450 MHz
Japan DBS 11.7 - 12.0 GHz 1035 - 1335 MHz
Japan JC-SAT 12.25 - 12.75 GHz 950 - 1450 MHz
Japan SCC 12.35 - 12.75 GHz 960 - 1450 MHz
Aussat 12.25 - 12.75 GHz 950 - 1450 MHz
 
Specific systems:
 US DSS Universal
RF Frequency12.2 to 12.7 GHz10.7 to 12.75 GHz
LO Frequency11.25 GHz9.75 GHz (Low Band)
10.6GHz (Hi band)
IF Frequency950 to 1450MHz950 to 1950MHz (Low band)
1100 to 2150MHz (Hi Band)
LNB NF < 1.1dB<1.5dB (Low band)
<1.3dB (Hi band)
LNB Gain 50 to 62dB<60dB
Gain Variation< +/- 0.5 dB over 24 MHz
<5 dB over 500 MHz
< +/- 0.5 dB over 26 MHz
< 5 dB over each IF band
< 3dB between two output
LO Stability< +/- 2MHz @ 25c
< +/- 4MHz @-35 to 52c
< +/-3MHz @-40 to 60c
Phase Noise < -50dBc/Hz @1KHz
< -70dBc/Hz @10KHz
< -90dBc/Hz @100KHz
< -110dBc/Hz @1MHz
< -50dBc/Hz @1KHz
< -75dBc/Hz @10KHz
< -95dBc/Hz @100KHz
Image Rejection > 40dB 40 - 50 dB
IM3 (2 tone) < -50dBc (-25dBm Out Two tone) 
IP3  > 15dBm
P1dB > 5 dBm
Polar Isolation > 20dB, 25 dB typ. > 20dB
LO leakage < -60dBm
In band spurs < -65dBm
30dB below desired signal
Cross Polarization> 25 dB> 22 dB
Power Consumption 200 mA for single
300 mA for twin
350 mA for single
350 mA for twin
Operating Temperature Range-35 to 66c-40 to 60c
Storage Temperature Range-40 to 72c 
Humidity test38c / 95RH for 200 hour 
OP Life-40 to 66c for 200 hour 
Storage Life -40 to 72c for 200 hour 

US Digicipher II (Primstar)

NF:> 0.7 ?
total LNB gain ~55 dB
Phase noise: -50 dBc @ 1kHz, -80 dBc @ 10 kHz, -95 dBc @ 100 kHz, -110 dBc @ 1 MHz, -115 dBc @ 10 MHz,
Integrated phase noise from 1 kHz to 10 MHz should be less than -34 dBc
Frequency drift should be less than 1 MHz /sec

 

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this page last updated: 1 October 1999