Atec RohdeSchwarz-SMW200A - Manual (Page 30)

Version 01.02, September 2013
30 Rohde & Schwarz R&S ® SMW200A Vector Signal Generator
IEEE 802.11ac (with R&S ® SMW-K86 option)
Measured EVM for an IEEE 802.11ac signal with 160 MHz bandwidth.
Custom digital modulation (with R&S ® SMW-B10 option, realtime mode)
Deviation error with 2FSK, 4FSK deviation 0.2 to 0.7 × symbol rate
Gaussian filter with B × T = 0.2 to 0.7
symbol rate up to 2 MHz < 1.2 %, 0.25 % (typ.)
symbol rate up to 10 MHz 0.75 % (typ.)
Phase error with MSK Gaussian filter with B × T = 0.2 to 0.7
bit rate up to 2 MHz < 0.4°, 0.15° (typ.)
bit rate up to 10 MHz 0.3° (typ.)
EVM with QPSK, OQPSK, π/4-DQPSK,
8PSK, 16QAM, 32QAM, 64QAM cosine, root cosine filter with α = 0.2 to 0.7
symbol rate up to 5 MHz < 0.8 %, 0.2 % (typ.)
symbol rate up to 20 MHz 0.7 % (typ.)