Spectrum Analyzer ¸FSU
Data sheet
Version
12.00
October
2007
CONTENTS
Frequency...................................................................................................................................................................................................3
Sweep.........................................................................................................................................................................................................4
Resolution bandwidths ...............................................................................................................................................................................4
Level ...........................................................................................................................................................................................................5
I/Q data.......................................................................................................................................................................................................9
Audio demodulation....................................................................................................................................................................................9
Trigger functions.......................................................................................................................................................................................10
Inputs and outputs (front panel)................................................................................................................................................................10
Inputs and outputs (rear panel) ................................................................................................................................................................11
General specifications ..............................................................................................................................................................................12
R&S®FSU-B9 tracking generator, R&S®FSU-B12 attenuator for tracking generator (not available for R&S®FSU67)..........................13
R&S®FSU-B21 LO/IF ports for external mixers (for R&S®FSU26/43/46/50/67 only) ............................................................................15
R&S®FSU-B23 RF preamplifier (for R&S®FSU26 only, requires R&S®FSU-B25 option) .....................................................................15
R&S®FSU-B25 electronic attenuator.....................................................................................................................................................16
R&S®FSU-B27 broadband FM demodulator output..............................................................................................................................17
Ordering information.................................................................................................................................................................................18
Options .....................................................................................................................................................................................................18
Recommended extras ..............................................................................................................................................................................19
2 R&S®FSU Spectrum Analyzer Version 12.00, October 2007
Specifications apply under the following conditions: 30 minutes warm-up time at ambient temperature, specified environmental
conditions met, calibration cycle adhered to, and all internal automatic adjustments performed.
Data without tolerances: typical values only. Data designated "nominal" applies to design parameters and is not tested.
Frequency
Frequency range
Frequency resolution
R&S®FSU3: DC coupled 20 Hz to 3.6 GHz
AC coupled 1 MHz to 3.6 GHz
R&S®FSU8: DC coupled 20 Hz to 8 GHz
AC coupled 1 MHz to 8 GHz
R&S®FSU26: DC coupled 20 Hz to 26.5 GHz
AC coupled 10 MHz to 26.5 GHz
R&S®FSU43: DC coupled 20 Hz to 43 GHz
R&S®FSU46: DC coupled 20 Hz to 46 GHz
R&S®FSU50: DC coupled 20 Hz to 50 GHz
®
R&S
FSU67: DC coupled 20 Hz to 67 GHz
0.01 Hz
Reference frequency, internal, nominal standard OCXO
Aging per day after 30 days of continuous operation 1 × 10
Aging per year after 30 days of continuous operation 1 × 10
–9
–7
Temperature drift +5 °C to +45 °C 8 × 10–8
Total error per year 1.8 × 10–7
Reference frequency, internal, nominal R&S®FSU-B4 option
Aging per day after 30 days of continuous operation 2 × 10
Aging per year after 30 days of continuous operation 3 × 10
–10
–8
Temperature drift +5 °C to +45 °C 1 × 10–9
Total error per year 5 × 10–8
External reference frequency 1 MHz to 20 MHz, 1 Hz steps
Frequency display
Marker resolution
with marker or frequency counter
span/624
Maximum deviation sweep time >3 × auto sweep time ±(marker frequency × reference error +
0.5 % × span +10 % × resolution
bandwidth + ½ (last digit))
Frequency counter resolution selectable 0.1 Hz to 10 kHz
Count accuracy S/N >25 dB ±(frequency × reference error + ½ (last
digit))
Display range for frequency axis
Resolution
Max. span deviation
0 Hz, 10 Hz to max. frequency
0.1 Hz
1 %
Spectral purity, SSB phase noise (1 Hz) f = 640 MHz
Residual FM RBW 10 kHz, RMS <1 Hz, nominal
Carrier offset
10 Hz <–73 dBc, nominal
10 Hz with R&S®FSU-B4 option fitted <–86 dBc, nominal
100 Hz <–98 dBc1,<–90 dBc, typ. –104 dBc1
1 kHz <–116 dBc1, <–112dBc, typ. –124 dBc1
10 kHz <–128 dBc1, <–120 dBc, typ. –133 dBc1
100 kHz <–128 dBc1, <–120 dBc, typ. –133 dBc1
1 MHz <–140 dBc1, <–138 dBc, typ. –146 dBc1
10 MHz typ. –160 dBc
1
Valid for R&S®FSU43, other models valid as of serial number 200000.
Version 12.00, October 2007 R&S®FSU Spectrum Analyzer 3
0
-20
-40
-60
-80
-100
-120
SSB ph ase noise (dBc(1Hz))
-140
-160
-180
10 Hz 100 Hz 1 kHz 10 kHz 100 kHz 1 MHz 10 MHz
R&S FSU center frequency 200 MHz
R&S FSU center frequency 1 GHz
R&S FSU center frequency 5 GHz
R&S FSU center frequency 25 GHz
R&S FSU center frequency 50 GHz
R&S FSU center frequency 65 GHz
Sweep
time sweep, span = 0 Hz 1µs to 16000 s in 5 % steps Sweep time
frequency sweep, span 10 Hz 2.5 ms to 16000 s in steps 10 %
Max. deviation of sweep time
Measurement in time domain with marker and cursor lines
3 %
(resolution 31.25 ns)
Resolution bandwidths
Sweep filters
3 dB bandwidths
Bandwidth uncertainty
Shape factor 60 dB:3 dB
FFT filters
3 dB bandwidths 1 Hz to 30 kHz in 1/2/3/5 sequence
Bandwidth uncertainty <5 %, nominal
Shape factor 60 dB:3 dB <3, nominal
EMI filters
6 dB bandwidths 10 Hz, 100 Hz, 200 Hz, 1 kHz, 9 kHz,
all models except R&S®FSU43 10 Hz to 20 MHz in 1/2/3/5 sequence,
®
R&S
FSU43 10 Hz to 10 MHz in 1/2/3/5 sequence
50 MHz
10 Hz to 100 kHz (digital) <3 %
200 kHz to 5 MHz (analog) <10 %
10 MHz –30 % to +10 %
20 MHz –20 % to +20 %
50 MHz, f 3.6 GHz –20 % to +20 %
50 MHz, f > 3.6 GHz –30 % to +100 %
100 kHz <6
200 kHz to 2 MHz <12
3 MHz to 10 MHz <7
20 MHz, 50 MHz <6, nominal
10 kHz, 100 kHz, 120 kHz, 1 MHz
120 kHz (digital) <3 %, nominal Bandwidth uncertainty
1 MHz (analog) <10 %, nominal
120 kHz <6, nominal Shape factor 60 dB:3 dB
1 MHz <12, nominal
4 R&S®FSU Spectrum Analyzer Version 12.00, October 2007
Channel filters
Bandwidths
Shape factor 60 dB:3 dB
Bandwidth uncertainty
Video bandwidths
100, 200, 300, 500 Hz
1, 1.5, 2, 2.4, 2.7, 3, 3.4, 4, 4.5, 5, 6, 8.5,
9, 10, 12.5, 14, 15, 16, 18 (RRC), 20, 21,
24.3 (RRC), 25, 30, 50, 100, 150, 192,
200, 300, 500 kHz
1, 1.2288, 1.28 (RRC), 1.5, 2, 3, 3.84
(RRC), 4.096 (RRC), 5 MHz
<2, nominal
<2 %, nominal
1 Hz to 10 MHz in 1/2/3/5 sequence
Level
Display range
Maximum input level
Pulse spectral density
Max. pulse voltage RF attenuation 10 dB 150 V
Max. pulse energy RF attenuation 10 dB, 10 µs 1 mWs
Intermodulation
1 dB compression of input mixer
Third-order intercept point (TOI)
RF input AC coupled 50 V DC voltage
RF input DC coupled 0 V
RF attenuation 0 dB 20 dBm (= 0.1 W) CW RF power
RF attenuation 10 dB 30 dBm (= 1 W)
0 dB RF attenuation
3.6 GHz +13 dBm, nominal
>3.6 GHz
R&S®FSU8 +10 dBm, nominal
®
FSU26/43/46/50/67 +7 dBm, nominal
R&S
level 2 × –10 dBm, f > 5 × RBW or 10 kHz, whichever is larger
R&S®FSU3
10 MHz fin < 300 MHz >17 dBm, typ. 20 dBm
300 MHz fin 3.6 GHz >19 dBm, typ. 25 dBm
R&S®FSU8:
10 MHz fin < 300 MHz >17 dBm, typ. 20 dBm
300 MHz fin 3.6 GHz >20 dBm, typ. 25 dBm
3.6 GHz fin 8 GHz >18 dBm, typ. 23 dBm
R&S®FSU26, R&S®FSU43, R&S®FSU46, R&S®FSU50, R&S®FSU67
10 MHz fin < 300 MHz >17 dBm, typ. 20 dBm
300 MHz fin < 3.6 GHz >22 dBm, typ. 27 dBm
3.6 GHz fin < 26.5 GHz >12 dBm, typ. 15 dBm
R&S®FSU43, R&S®FSU46
26.5 GHz fin 40 GHz >12 dBm, typ. 15 dBm
fin > 40 GHz >12 dBm, nominal
R&S®FSU50
26.5 GHz fin < 28 GHz >8 dBm, typ. 11 dBm
28 GHz fin 40 GHz >12 dBm, typ. 15 dBm
fin > 40 GHz >12 dBm, nominal
R&S®FSU67
26.5 GHz fin < 28 GHz >8 dBm, typ. 11 dBm
28 GHz fin 40 GHz >12 dBm, typ. 15 dBm
40 GHz < fin 50 GHz >12 dBm, nominal
f
> 50 GHz >9 dBm, nominal
in
displayed noise floor to +30 dBm
97 dB µV/MHz
Version 12.00, October 2007 R&S®FSU Spectrum Analyzer 5
Second harmonic intercept (SHI)
Displayed average noise level
< 100 MHz >35 dBm
f
in
100 MHz < fin 400 MHz >45 dBm, typ. 55 dBm
400 MHz < fin 500 MHz >52 dBm, typ. 60 dBm
500 MHz < fin 1 GHz >45 dBm, typ. 55 dBm
1 GHz < fin 1.8 GHz >35 dBm
R&S®FSU8, R&S®FSU26, R&S®FSU43, R&S®FSU46, R&S®FSU50
fin > 1.8 GHz >80 dBm, nominal
R&S®FSU67
1.8 GHz < fin 4.0 GHz >65 dBm, nominal
f
> 4.0 GHz >75 dBm, nominal
in
0 dB RF attenuation, termination 50 , log. scaling, normalized to 1 Hz RBW
f < 10 kHz: 10 Hz FFT filter, trace average, sweep count = 20
f 10 kHz: RBW = 1 kHz, VBW = 3 kHz, zero span, sweep time 50 ms, sample
detector, trace average, sweep count = 20, mean marker
20 Hz <–90 dBm
100 Hz <–110 dBm
1 kHz <–120 dBm
10 kHz <–130 dBm
100 kHz <–130 dBm
1 MHz <–140 dBm
10 MHz <–153 dBm
R&S®FSU3
20 MHz f < 2.0 GHz <–155 dBm, typ. –158 dBm
2.0 GHz f 3.0 GHz <–153 dBm, typ. –157 dBm
3.0 GHz f 3.6 GHz <–152 dBm, typ. –156 dBm
R&S®FSU8
20 MHz f < 2.0 GHz <–155 dBm, typ. –158 dBm
2.0 GHz f < 3.0 GHz <–153 dBm, typ. –155 dBm
3.0 GHz f < 7 GHz <–152 dBm, typ. –154 dBm
7 GHz f 8 GHz <–150 dBm, typ. –152 dBm
R&S®FSU26
20 MHz f < 2 GHz <–152 dBm, typ. –156 dBm
2 GHz f < 3.6 GHz <–150 dBm, typ. –153 dBm
3.6 GHz f < 8 GHz <–152 dBm, typ. –156 dBm
8 GHz f < 13 GHz <–150 dBm, typ. –153 dBm
13 GHz f < 18 GHz <–148 dBm, typ. –151 dBm
18 GHz f < 22 GHz <–147 dBm, typ. –150 dBm
22 GHz f 26.5 GHz <–145 dBm, typ. –148 dBm
R&S®FSU43
20 MHz f < 2 GHz <–152 dBm, typ. –156 dBm
2 GHz f < 13 GHz <–150 dBm, typ. –153 dBm
13 GHz f < 18 GHz <–148 dBm, typ. –151 dBm
18 GHz f < 22 GHz <–147 dBm, typ. –150 dBm
22 GHz f < 26.5 GHz <–145 dBm, typ. –148 dBm
26.5 GHz f < 40 GHz <–138 dBm, typ. –141 dBm
40 GHz f 43 GHz <–133 dBm, typ. –138 dBm
6 R&S®FSU Spectrum Analyzer Version 12.00, October 2007
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