產品明細

SLG

衛星全頻道負載信號產生器

產品簡述

♦ 支援衛星中頻範圍從250 MHz to 3225 MHz
♦ 可同時產生32路衛星信號
♦ 獨立設定symbol rate, FEC, level and frequency
♦ 支援DVB-S/S2/S2X (wideband), ISDB-S/S3 and turbo modulation standards
♦ 信號純度: 40 dB MER (typ.)

詢價

產品詳細介紹Product Introduction

The world's first integrated instrument to simulate TV satellite bands with full channel load

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.

The R&S®SLG can be fully remote controlled, making it ideal for integration into automatic test systems. All this functionality has been packed into a compact 19" 1 HU housing. Previously a rack full of modulators was needed to generate as many satellite TV signals as the R&S®SLG does.

Features

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.)

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 in brief
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
Satellite 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 Mbyte
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)