Atec Rohde-Schwarz-SMJ100A - Manual (Page 18)

R&S ® SMJ100A Vector Signal Generator Version 05.00, December 2007 18
I/Q baseband generator (R&S ® SMJ-B9/-B10/-B11/-B50/-B51 option) –
arbitrary waveform mode
The R&S ® SMJ-B13 baseband main module must be installed.
output memory
waveform length with the R&S ® SMJ-B9 128 sample to 128 Msample in
one-sample steps
waveform length with the
R&S
® SMJ-B10/-B50
128 sample to 64 Msample in one-sample
steps
waveform length with the
R&S
® SMJ-B11/-B51
128 sample to 16 Msample in one-sample
steps
resolution 16 bit
loading time 10 Msample 15 s
Waveform memory
nonvolatile memory hard disk
number of segments max. 100 segments
changeover modes GUI, remote control, external trigger
extended trigger modes
same segment, next segment, next
segment seamless
changeover time
(external trigger, without clock change) typ. 5 µs at 50 MHz clock rate
Multisegment waveform
seamless changeover output up to end of current segment,
followed by changeover to next segment
number of carriers max. 32
total RF bandwidth max. 80 MHz
crest factor modes maximize, minimize, off
signal period modes longest file, shortest file, user (max. 1 s)
single carrier gain –80 dB to 0 dB
single carrier start phase 0° to 360°
Multicarrier waveform
single carrier delay 0 s to 1 s
clock rate 400 Hz to 100 MHz
resolution 0.001 Hz
operating mode internal, external
Clock generation
frequency uncertainty (internal) <5 Ч 10 − 14 Ч clock rate +
uncertainty of reference frequency
The sampling rate of the waveform is
automatically interpolated to the internal
100 MHz data rate.
bandwidth
clock rate = 100 MHz (no interpolation),
roll-off to –0.1 dB 40 MHz
Interpolation
clock rate ≤100 MHz, drop to −0.1 dB 0.31 × clock rate