The Rohde & Schwarz FSH-Z2 is a VSWR bridge and power divider accessory for the FSH series handheld spectrum analyzers. It enables scalar transmission and reflection measurements—return loss, reflection coefficient, and VSWR—across 10 MHz to 3 GHz. The unit integrates directly onto the analyzer’s RF input and tracking generator output, eliminating cable complexity. It also functions as a power divider for Distance to Fault (DTF) measurements.
Technical Specifications
Frequency Range: 10 MHz to 3 GHz
Impedance: 50 Ω
VSWR Bridge Performance:
• Directivity: 30 dB typical (10 MHz–1 GHz), 25 dB typical (1–3 GHz)
• Directivity, corrected: 43 dB typical (10 MHz–3 GHz)
• Return loss at test port: 20 dB typical (10 MHz–3 GHz)
• Return loss at test port, corrected: 35 dB typical (2 MHz–3 GHz)
Power Divider & Control:
• 5 V relay switching via 7-pin Binder connector
• Max. input voltage: 50 V
• Max. input current: 300 mA
Signal Path Losses:
• Test port insertion loss: 9 dB typical
• Bypass insertion loss: 4 dB typical
• 1st mixer 1 dB compression point: +10 dBm typical
• IF overload at reference level: +8 dB typical
– Key Features
• N-male generator input/RF output connector; N-female test port
• Compact form factor: 169 mm × 116 mm × 30 mm, 485 g
• Direct mechanical coupling to FSH RF and tracking generator ports
• Supplied calibration standards: open, short, and 50 Ω load (N male)
– Typical Applications
• Antenna and transmission line VSWR characterization
• Return loss and reflection coefficient measurements
• Distance to Fault (DTF) testing and cable diagnostics
• Filter and matching network scalar analysis
– Compatibility & Integration
Designed for Rohde & Schwarz FSH series analyzers including FSH3 and FSH6 models. Mounts directly to the analyzer without additional adapters or cabling.
