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SED Gemini Satellite Modulator

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  • Supports CCM/VCM/ACM1
  • LCD control and status display
  • Includes IF and L-Band outputs
  • SNMP-based M&C interface


SKU: SATRES-22078

DVB-S2
Signal format CCM/VCM/ACM
Modulation format and FEC rate QPSK, FEC rates 1/4,1/3, 2/5, 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 8/9, 9/10

8PSK, FEC rates 3/5, 2/3, 3/4, 5/6, 8/9, 9/10

16APSK, FEC rates 2/3, 3/4, 4/5, 5/6, 8/9, 9/10

32APSK, FEC rates 3/4, 4/5, 5/6, 8/9, 9/10. 9/10
Roll-off factor 0.2, 0.25, 0.35
Number of streams 1 - 4
DVB-S
Modulation format and FEC rate QPSK, FEC rates1/2, 2/3, 3/4, 5/6, 7/8
Roll-off factor 0.1 to 0.5 with 0.05 resolution
Turbo
Modulation format and FEC rate QPSK, FEC rates 1/2, 2/3, 3/4, 5/6, 7/8

8PSK, FEC rates 2/3, 3/4, 4/5, 5/6, 8/9
Roll-off factor 0.1 to 0.5 with 0.05 resolution
Common
Spectral Inversion On/Off
Packet stuffing and PCR recalculation Insert Null packets as required and recalculate PCR.
DVB-ASI sync On/off. When on, symbol rate is determined from input data rate and selected modulation type and FEC rate. Not applicable for multiple input stream operation
Carrier Control Off / No modulation (CW) / Random PN23 bit stream / normal bit stream
Performance
Min. Symbol rate 100 kBaud
Max. Symbol rate 45 Mbaud
Min. Symbol rate step 1 Baud
User packet size 188 bytes
IF/L-Band Interface
L-Band Output 950 - 1750 MHz (L-band), 1 Hz step

50 ohm SMA-Female

+5 to -25 dBm
IF Output 50 - 90 MHz (70 MHz IF), 1 Hz step

105 -175 MHz (140 MHz IF), 1 Hz step

75 ohm BNC-Female

+5 to -30 dBm
Output power step 0.1 dB
Output power stability +/- .5 dB
Output power accuracy +/- 0.5 dB
Monitor Output 50 ohm BNC - Female

L-Band, 950 - 1750 MHz (when L-Band output selected)

    950 to 1450 MHz: -31 dB, +/-2 dB

    1450 to 1750 MHz: -33 dB, +/-2 dB

IF, 70/140 MHz (when IF output selected)

    -30 dB, +/-1 dB
Return Loss Minimum 14 dB
Spurious -60 dBc in any 4 kHz bandwidth
Phase Noise 100 Hz, -80 dBc/Hz

1 kHz, -85 dBc/Hz

10 kHz, -85 dBc/Hz

100 kHz, -100 dBc/Hz

1 MHz, -110 dBc/Hz
Control Interfaces
SNMP SNMPv2. Accessed over Ethernet physical interface
Web interface Accessed over the Ethernet physical interface.
Alarms Complete suite of parameters monitored. Access via GUI or SNMP. Comprehensive alarm history. Alarm relay contact - DB9 sockets
Physical
Size 19 inches wide, 1U (1.75 inches) high, 11 inches deep, EIA standard 19 inch rack mountable
Weight 15 pounds max.
Environmental
Operating Temp. 0ºC to 50ºC
Storage Temp. -10ºC to 55ºC
Humidity - Operating 10% to 80% relative humidity non condensing
Electromagnetic Compatibility EN 61000-6-1, EN 61000-6-3 FCC Title 47, Part 15
Safety EN 61010-1

UL 61010-1

CSA22.2 No. 61010-1

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