R&S®SLG Satellite Load Generator

Multichannel digital satellite TV modulator

Key Facts

  • Satellite IF range from 250 MHz to 3225 MHz
  • Up to 32 simultaneous transponder signals
  • Independent setting of symbol rate, FEC, level and frequency

Brief Description

The R&S®SLG satellite load generator is a multichannel signal generator for digital satellite TV. It is the world's first integrated instrument to simulate TV satellite bands with full channel load.

Features & Benefits

  • Versatile signal source for testing satellite receivers
  • Simulation of satellite TV bands with full channel load
  • Signal generator system for the entire satellite IF range

Specifications

RF parameters
Frequency range 250 MHz to 3225 MHz
Number of channels max. 32

Key Facts

  • Satellite IF range from 250 MHz to 3225 MHz
  • Up to 32 simultaneous transponder signals
  • Independent setting of symbol rate, FEC, level and frequency
  • DVB-S/S2, DVB-S2X, DVB-S2 wideband, ISDB-S/S3 and turbo modulation standards
  • Signal quality of 40 dB MER (typ.)

Brief Description

The R&S®SLG satellite load generator is a multichannel signal generator for digital satellite TV. It is the world's first integrated instrument to simulate TV satellite bands with full channel load. The R&S®SLG generates satellite TV signals using different standards and parameters and combines them in any desired manner. Users can simulate any conceivable uplink and downlink configurations in the lab.

The R&S®SLG has a frequency range from 250 MHz to 3225 MHz, covering all satellite IF frequency bands used worldwide. The R&S®SLG can simultaneously generate up to 32 digital satellite TV transponder signals in line with the DVB-S/S2, DVB-S2X, ISDB-S/S3 and turbo standards or, alternatively, one signal in line with DVB‑S2 wideband. Up to 16 transponders can transmit MPEG transport streams; the other transponders carry PRBS data. The transport streams are fed into the instrument via IP or ASI inputs. The R&S®SLG uses its integrated transport stream generator to play short transport stream files. Each channel can contain an ARB waveform or a CW carrier instead of a TV signal.

The R&S®SLG is primarily suited for performing RF tests on satellite TV components. Its interfaces, which are commonly used in consumer electronics and professional satellite electronics, make the generator ideal for testing tuners and set-top boxes as well as upconverters, amplifiers and satellite payloads. Because it can simultaneously generate multiple channels with high symbol rates, the R&S®SLG is also well suited for performing stress tests on systems that process large data quantities, such as transcoders, conditional access middleware and military surveillance data processing systems.

Features & Benefits

  • Versatile signal source for testing satellite receivers
    • Maximum precision and flexibility thanks to multichannel digital signal generation
    • Simulation of real-world receive conditions with white noise and phase noise
    • Control and communications via DiSEqC
    • Multichannel ARB and CW generator
  • Simulation of satellite TV bands with full channel load
    • Simulation of real-world satellite configurations in the lab
    • Realtime video transmission at high data rates
    • Support of latest standards and technologies:
      DVB-S2/S2X wideband and channel bonding and ISDB-S3
  • Signal generator system for the entire satellite IF range
    • Compact instrument instead of many individual modulators
    • Expandable master/slave configuration

Specifications

RF parameters
Frequency range   250 MHz to 3225 MHz
Frequency bands one band settable out of 8 bands band 1 to band 8
Number of channels in one 500 MHz band max. 32
Frequency response in one 500 MHz band ≤ ± 1.25 dB
Level per carrier ≥ –14.5 dBm
  overall ≥ –3 dBm
Level setting range per carrier 0 dB to –30 dB
  step size 0.1 dB
Modulations
Satelite TV standards   DVB-S/DSNG, DVB-S2, DVB-S2X, ISDB-S/S3
  channel bonding DVB-S2X
Symbol rate for 32 carriers 0.1 Msymbol/s to 30 Msymbol/s
  for 8 carriers 5 Msymbol/s to 72 Msymbol/s
  for 1 carrier 45 Msymbol/s to 416 Msymbol/s
MER in bands 3, 4 and 5 for 32 carriers with 30 Msymbol/s 46 dB (typ.) with equalizer,
40 dB (typ.) without equalizer
  for 8 carriers with 72 Msymbol/s 46 dB (typ.) with equalizer,
36.5 dB (typ.) without equalizer
  for 1 carrier with 416 Msymbol/s 40 dB (typ.) with equalizer,
30.5 dB (typ.) without equalizer
AWGN and phase noise
AWGN bandwidth 1 dB drop 510 MHz
Noise power in 500 MHz bandwidth –45 dBm to +5 dBm
Phase noise for each active carrier user-defined up to 10 MHz offset from carrier
Arbitrary waveform generator
Memory space total 400 Mbytes
Number of files played simultaneously   max. 4
File size   ≤ 256 Mbyte/(number of played files)
Aggregate sample rate sum of all played files ≤ 288 Msample/s
Interfaces
RF outputs primary 50 Ω SMA
  secondary 75 Ω F, DiSEqC version 2.1, level 2.2
Monitor outputs RF, ASI 2 × BNC
Transport stream inputs ASI 2 × 75 Ω BNC
  IP 2 × 10/100/1000BaseT, RJ-45, 1 × SFP+
Control interface Ethernet 10/100BaseT, RJ-45
  format web browser interface, SCPI, SNMP
General data
Operating temperature range   0 °C to +45 °C
Dimensions W × H × D 482.6 mm × 279.4 mm × 44.5 mm
(19 in × 11 in × 1.75 in)
Weight   3.2 kg (7.05 lb)
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