Atec Rohde-Schwarz-FSW - Manual (Page 24)

Version 05.01, December 2012
24 Rohde & Schwarz R&S ® FSW Signal and Spectrum Analyzer
R&S ® FSW-B71 analog baseband inputs,
R&S ® FSW-B71E 80 MHz analysis bandwidth for analog baseband inputs
Frequency
Frequency range (equalized)
R&S ® FSW-B71
I only, Q only DC to 40 MHz
I + jQ –40 MHz to +40 MHz
R&S ® FSW-B71E
I only, Q only DC to 80 MHz
I + jQ –80 MHz to +80 MHz
Spectral purity
Phase noise
offset 1 kHz –134 dBc (1 Hz) (nom.)
offset 10 kHz –138 dBc (1 Hz) (nom.)
offset ≥100 kHz –144 dBc (1 Hz) (nom.)
Inputs
Connectors
_ _
I, I, Q, Q
Maximum safe input voltage any input, sum of DC + AC ±4 V
Input voltage range (full scale) peak voltage ±2 V, ±1 V, ±0.5 V, ±0.25 V
Max. common mode input range -3 V to +3 V
Input impedance single ended 50 Ω (nom.)
differential 100 Ω (nom.)
common mode at DC 20 kΩ (nom.)
Input return loss 0 Hz to 40 MHz –35 dB (nom.)
40 MHz to 80 MHz
(R&S
® FSW-B71E only)
–30 dB (nom.)
Amplitude
Absolute amplitude accuracy
f
input
= 1 MHz,
input voltage = full scale –6dB
±0.15 dB
Amplitude linearity 0 dB to –80 dB relative to full scale ±0.1 dB (nom.)
Frequency response
Amplitude relative to 1 MHz
0 Hz to 40 MHz
±0.15 dB
40 MHz to 80 MHz
(R&S
® FSW-B71E only)
±0.25 dB
Deviation from linear phase 0 Hz to 40 MHz ±1 degree (nom.)
40 MHz to 80 MHz
(R&S
® FSW-B71E only)
±2 degree (nom.)
Channel match (I/Q imbalance)
Amplitude match accuracy 0 Hz to 20 MHz ±0.06 dB (2σ)
20 MHz to 40 MHz ±0.1 dB (2σ)
40 MHz to 80 MHz
(R&S
® FSW-B71E only)
±0.15 dB (2σ)
Phase match accuracy 0 Hz to 20 MHz ±0.3 degree (nom.)
20 MHz to 40 MHz ±0.6 degree (nom.)
40 MHz to 80 MHz
(R&S
® FSW-B71E only)
±1 degree (nom.)