Atec Rohde-Schwarz-FSH Series - Manual (Page 4)

Version 15.01, July 2013
4 Rohde & Schwarz R&S ® FSH4/R&S ® FSH8/R&S ® FSH13/ R&S ® FSH20 Spectrum Analyzer
Sweep time
Sweep time span = 0 Hz 200 µs to 100 s
10 Hz ≤ span ≤ 600 MHz 20 ms to 1000 s
span > 600 MHz 20 ms × span/600 MHz to 1000 s
Uncertainty span = 0 Hz nominal 1 %
span ≥ 10 Hz nominal 3 %
Bandwidths
Resolution bandwidths
Range
–3 dB bandwidth 1 Hz to 3 MHz in 1/3 sequence
Bandwidth accuracy 1 Hz ≤ RBW ≤ 300 kHz nominal < 5 %
RBW > 300 kHz nominal < 10 %
Selectivity 60 dB:3 dB nominal < 5 (Gaussian type filters)
Video filters
Range
–3 dB bandwidth 1 Hz to 3 MHz in 1/3 sequence
Level
Display range displayed noise floor to +30 dBm
Maximum rated input level with RF attenuation ≥ 10 dB
DC voltage
R&S ® FSH4/ R&S ® FSH 8,
model .04/.08/.14/.18
80 V
R&S ® FSH4/ R&S ® FSH 8, model .24/.28,
R&S ® FSH13, R&S ® FSH 20
50 V
CW RF power 30 dBm (= 1 W)
Peak RF power duration < 3 s 33 dBm (= 2 W)
Max. pulse voltage 150 V
Max. pulse energy pulse width 10 µs 10 mWs
Maximum rated input level with RF attenuation < 10 dB
DC voltage
50 V
CW RF power 20 dBm (= 100 mW)
Peak RF power duration < 3 s 23 dBm (= 200 mW)
Max. pulse voltage 50 V
Max. pulse energy pulse width 10 µs 1 mWs
Intermodulation
Third-order intercept (TOI),
nominal values
intermodulation-free dynamic range, signal level 2 × –20 dBm, RF attenuation = 0 dB,
RF preamplifier = off
f
in
< 300 MHz > 54 dBc (TOI > +7 dBm, typ. +11 dBm)
300 MHz ≤ f
in
< 3.6 GHz > 60 dBc (TOI > +10 dBm, typ. +15 dBm)
3.6 GHz ≤ f
in
≤ 20 GHz > 46 dBc (TOI > +3 dBm, typ. +10 dBm)
intermodulation-free dynamic range, signal level 2 × –40 dBm, RF attenuation = 0 dB,
RF preamplifier = on
f
in
< 300 MHz > 50 dBc (TOI > –15 dBm)
300 MHz ≤ f
in
≤ 20 GHz > 56 dBc (TOI > –12 dBm)
Second harmonic intercept (SHI),
nominal values RF attenuation = 0 dB, RF preamplifier = off
f
in
= 20 MHz to 1.5 GHz +40 dBm
f
in
= 1.5 GHz to 3 GHz +30 dBm
f
in
= 3 GHz to 4 GHz +20 dBm
f
in
= 4 GHz to 10 GHz +60 dBm
RF attenuation 0 dB, RF preamplifier = on
f
in
= 100 MHz to 4 GHz 0 dBm