FSU

The R&S®FSU is a high-performance spectrum analyzer with outstanding performance in phase noise, dynamic range and measurement accuracy that meets any challenge in RF analysis - in aerospace and defense or for general microwave applications up to 67 GHz.
To handle the wide variety of measurement tasks in product development, an instrument must offer ample functionality and excellent performance in all areas of interest. The R&S®FSU fully meets these requirements.
Its wide dynamic range makes the R&S®FSU an ideal tool for base station development and testing. That plus the excellent characteristics already incorporated in the standard model, e.g. < 0.3 dB total measurement uncertainty, gated sweep and IF power trigger.

Key Facts
• 3.6/8/26/43/46/50/67 GHz
• TOI > 20 dBm, typ. +25 dBm
• 1 dB compression: +13 dBm (0 dB RF attenuation)
• Displayed average noise level: -152 dBm at 2 GHz; -148 dBm at 26 GHz (1 Hz bandwidth)
• Typ. 77 dB ACLR for 3GPP, typ. 84 dB with noise correction
• Phase noise: typ. -160 dBc (1 Hz) at 10 MHz carrier offset
• Noise correction

Features & Benefits
Shorter development cycles through versatile functions, wide dynamic range and performance
• Full choice of detectors
• Versatile resolution filters
• Full range of analysis functions
• High dynamic range

Innovative solutions through customized options
• Measuring frequency deviation after settling
• Power measurement
• Scalar network analysis with wide dynamic range

Spectrum analysis up to 67 GHz/110 GHz
• Direct frequency range up to 67 GHz
• Easy expansion of the frequency range to 110 GHz with external mixers from Rohde & Schwarz
• Support of external mixers up to 1 THz

High throughput in production
• Short test cycles, high throughput
   -Fast time domain power measurement
   -List mode: combined measurement of various parameters with a single command
   -Up to 70 measurements/s in zero span via IEC/IEEE bus, including trace data transfer
   -Fast frequency counter: 0.1 Hz resolution for a measurement time of < 30 ms
• 859x/8566-compatible IEC/IEEE bus command set
• High measurement speed

Supported Technologies
• WCDMA/HSPA/HSPA+
• GSM/EGPRS//EDGE Evolution/VAMOS
• CDMA2000® 1xEV-DO
• CDMA2000® 1xRTT
• TD-SCDMA
• GSM-R
• TETRA
• cdmaOne
• DECT
• Bluetooth® (Basic Rate)
• ZigBeeâ„¢ IEEE 802.15.4
• AM
• FM

Specifications

Frequency range	20 Hz to 8 GHz
Reference frequency	aging: 1 x 10 -7/year, with R&S®FSU-B4 option: 3 x 10 -8/year
Phase noise	typ. -133 dBc (1 Hz) at 640 MHz in 10 kHz from carrier
Span =10 Hz	2.5 ms to 16 000 s
Span 0 Hz (zero span)	1 µs to 16 000 s
Resolution bandwidth	10 Hz to 50 MHz (R&S®FSU43: 10 Hz to 10 MHz), FFT filter: 1 Hz to 30 kHz, channel filter, EMI bandwidth
Video bandwidth	1 Hz to 10 MHz
Display range	displayed average noise level to +30 dBm
1 GHz	typ. -158 dBm
7 GHz	typ. -154 dBm
Displayed averagenoise level with preamplifier ON (R&S®FSU-B25), 1 GHz, 1 Hz RBW	< -162 dBm
Trace detectors	Max Peak, Min Peak, Auto Peak, Sample, RMS, Average, Quasi Peak, CISPR-AV, CISPR-RMS
Total measurement error, f < 3.6 GHz	0.3 dB
Display linearity	0.1 dB (0 dB to -70 dB)