Atec RohdeSchwarz-SMW200A - Manual (Page 37)

Version 01.02, September 2013
Rohde & Schwarz R&S ® SMW200A Vector Signal Generator 37
Additive white Gaussian noise (AWGN) (R&S ® SMW-K62 option)
AWGN can be generated either on path A or B with one R&S ® SMW-K62 option. For AWGN to be generated on paths A and B
simultaneously, two R&S ® SMW-K62 must be installed, and the R&S ® SMW200A must be equipped with the R&S ® SMW-B13T option.
Addition of an AWGN signal of settable bandwidth and settable C/N ratio or E
b
/N
0
to a wanted signal. If the noise generator is used,
a frequency offset cannot be added to the wanted signal.
Noise distribution density Gaussian, statistical, separate for I and Q
crest factor > 15 dB
periodicity > (2 800 – 1 )/200 MHz
C/N, E
b
/N
0
setting range –30 dB to +30 dB
resolution 0.1 dB
uncertainty for system bandwidth = symbol
rate, symbol rate < 4 MHz,
–24 dB < C/N < 30 dB and
crest factor < 12 dB < 0.1 dB
System bandwidth bandwidth for determining noise power
range 1 kHz to 160 MHz
resolution 100 Hz
Remote control
Interfaces remote control IEC 60625 (GPIB IEEE-488.2)
Ethernet/LAN 10/100BaseT
USB
2.0 (high speed)
serial RS-232 12
Command set SCPI 1999.5 or compatible command sets
IEC/IEEE bus address 0 to 30
Ethernet/LAN protocols and services • VISA VXI-11 (remote control)
• Telnet/RawEthernet (remote control)
• VNC (remote operation with web
browser)
• FTP (file transfer protocol)
• SMB (mapping parts of the instrument
to a host file system)
Ethernet/LAN addressing DHCP, static, support of ZeroConf and
M-DNS to facilitate direct connection to a
system controller
USB protocol VISA USB-TMC
12 Requires the R&S ® TS-USB1 serial adapter (recommended extra).