The Rohde & Schwarz FSH18 is a handheld, battery-powered spectrum analyzer designed for microwave applications in the field. Operating from 10 MHz up to 18 GHz, it is ideal for servicing microwave links, field strength measurements, and signal monitoring.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | Optical RS-232, USB (via optical-to-USB adapter cable) |
| Display | 4.7" color LCD, 320 × 240 pixels |
| Internal Setup and Trace Memory | Up to 100 configurations and traces |
| Warm-up Time | 20 min |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 100 V to 240 V AC (50/60 Hz) external adapter, 15 V DC input, typ. 7 W |
| Operating Temperature | 0 to 50 |
| Dimensions (W×H×D) | 129 mm × 283 mm × 115 mm |
| Weight | 2.5 |
Frequency Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 10 MHz to 18 GHz |
| Frequency Resolution | 1 Hz |
| Reference Frequency Accuracy | 2 ppm |
| Reference Frequency Temperature Drift | 2 ppm (0 °C to 50 °C) |
| Reference Frequency Aging | 2 ppm/year |
| Frequency Span Range | 0 Hz, 10 kHz to 18 GHz |
| Spectral Purity (Phase Noise) | <-100 dBc/Hz @ 100 kHz offset (typ.) |
Sweep and Trigger
| Parameter | Value |
|---|---|
| Sweep Time (Span >= 10 kHz) | 100 ms to 1000 s |
| Sweep Time (Zero Span) | 1 ms to 100 s |
| Sweep Trigger Source | Free Run, External, Video |
| Trigger Delay Range | 125 µs to 125 s (Zero Span) |
| Sweep Modes | Continuous, Single |
| Number of Sweep Points | 301 |
Bandwidths
| Parameter | Value |
|---|---|
| Resolution Bandwidths (RBW) Range | 100 Hz to 1 MHz |
| Resolution Bandwidths (RBW) Steps | 1 and 3 steps |
| Video Bandwidths (VBW) Range | 10 Hz to 1 MHz |
| Video Bandwidths (VBW) Steps | 1 and 3 steps |
| Resolution Filter Shape Factor | < 5 (60 dB / 3 dB bandwidth) |
Amplitude and Noise
| Parameter | Value |
|---|---|
| Displayed Average Noise Level (DANL) (3 GHz to 6 GHz) | typ. -128 dBm (RBW 100 Hz) |
| Displayed Average Noise Level (DANL) (100 MHz to 3 GHz) | typ. -128 dBm (RBW 100 Hz) |
| Displayed Average Noise Level (DANL) (6 GHz to 18 GHz) | typ. -120 dBm (RBW 100 Hz) |
| Maximum Safe RF Input Power | +20 dBm (continuous) |
| Maximum Safe RF Input Power (Short Term) | +30 dBm (< 3 s) |
| Maximum DC Input Voltage | 80 V |
| Input Attenuator Range | 0 dB to 30 dB (in 10 dB steps) |
Measurement Accuracy
| Parameter | Value |
|---|---|
| Level Accuracy (6 GHz to 18 GHz) | 2.5 dB |
| RF Input VSWR (10 MHz to 6 GHz) | typ. < 1.5 |
| RF Input VSWR (6 GHz to 18 GHz) | typ. < 2.0 |
| Reference Level Range | -80 dBm to +20 dBm |
| Reference Level Steps | 1 dB or 10 dB |
Measurement Modes and Functions
| Parameter | Value |
|---|---|
| Standard Measurement Types | Channel power, Occupied bandwidth (OBW), TDMA power, C/N ratio, Spectrum emission mask |
| Marker Functions | Peak, Next Peak, Minimum, Center Frequency, Reference Level, Noise Marker, Frequency Counter |
| Number of Markers | 1 normal marker and up to 5 delta markers |
| Detector Types | Sample, Max Peak, Min Peak, Auto Peak, RMS |
| Trace Functions | Clear/Write, Max Hold, Min Hold, Average, View |
| Limit Lines Support | Upper and lower limit lines with Pass/Fail indication |
Connectivity and Interfaces
| Parameter | Value |
|---|---|
| RF Input Connector | N female |
| RF Input Impedance | 50 Ω |
| External Trigger / Reference Input | BNC female (shared) |
| Audio Output Port | 3.5 mm jack for headphones |
Power and Battery
| Parameter | Value |
|---|---|
| Battery Type | Lithium-ion battery |
| Battery Charging Time | approx. 4 h (instrument off) |
Physical Characteristics
| Parameter | Value |
|---|---|
| Width | 194 mm |
| Height | 300 mm |
| Depth | 144 mm |
| Portability Features | Hand strap, integrated kickstand |
| Chassis Material | Robust plastic housing with shock-absorbing corners |
Environmental Specifications
| Parameter | Value |
|---|---|
| Relative Humidity Range | 95% (non-condensing) |
| IP Rating | IP51 |
Compliance and Standards
| Parameter | Value |
|---|---|
| EMC Compliance | EN 61326-1, EN 55011 Class B |
| Electrical Safety Standards | EN 61010-1 |
| Calibration Interval | 1 year (recommended) |
Performance
| Parameter | Value |
|---|---|
| Third-Order Intercept (TOI) | +10 dBm (typ. +15 dBm) at 1 GHz |
| SSB Phase Noise (100 kHz offset) | <-95 dBc/Hz (typ. -105 dBc/Hz) at 500 MHz |
| SSB Phase Noise (1 MHz offset) | <-115 dBc/Hz (typ. -125 dBc/Hz) at 500 MHz |
| Number of Traces | 2 (1 active trace, 1 memory trace) |
Power
| Parameter | Value |
|---|---|
| Power Consumption | 12 W |
| External Power Adapter AC Input | 100 V to 240 V AC, 50 Hz to 60 Hz |
| External DC Input Voltage Range | 15 V to 20 V DC |
Interfaces
| Parameter | Value |
|---|---|
| GPS Receiver Interface | Supports external R&S HA-Z240 GPS receiver via USB |
Frequency
| Parameter | Value |
|---|---|
| External Reference Input Frequency | 10 MHz |
Inputs & Outputs
| Parameter | Value |
|---|---|
| External Trigger Input Level | TTL level |
Expansion & Accessories
| Parameter | Value |
|---|---|
| Power Sensor Compatibility | R&S FSH-Z1 (10 MHz to 8 GHz), R&S FSH-Z18 (10 MHz to 18 GHz) |
Environmental
| Parameter | Value |
|---|---|
| Environmental Resistance (Vibration) | Meets MIL-PRF-28800F Class 3 |
| Environmental Resistance (Shock) | Meets MIL-PRF-28800F Class 3 |
Technology
Superheterodyne Spectrum Analyzer
Applications
Microwave link servicing, field strength measurements, and signal monitoring