The Rohde & Schwarz FSH4 is a rugged, handheld spectrum analyzer designed for field applications. It features high sensitivity, low measurement uncertainty, and a frequency range up to 3.6 GHz. Depending on the version, it offers advanced measurement capabilities including a built-in tracking generator and a two-port network analyzer, making it an essential tool for the installation and maintenance of transmitter stations.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | LAN, USB, SD card slot |
| Display | 6.5-inch color TFT VGA (640 × 480 pixels) |
| Two-Port Network Analyzer | Supported (Model .24) |
| PC Software | R&S FSH4View (for measurement documentation) |
| Recommended Calibration Interval | 1 year |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 100-240 V AC adapter or Li-ion battery |
| Operating Temperature | -10 to +55 |
| Dimensions (W×H×D) | 194 × 300 × 69 |
| Weight | 3 |
Frequency
| Parameter | Value |
|---|---|
| Frequency Range (Models .04 & .14) | 9 kHz to 3.6 GHz |
| Frequency Range (Model .24) | 100 kHz to 3.6 GHz |
| Frequency Resolution | 1 Hz |
| Reference Frequency Aging | < 1 ppm / year |
| Reference Frequency Initial Accuracy | 1 x 10^-6 |
Bandwidths
| Parameter | Value |
|---|---|
| Resolution Bandwidth (RBW) Range | 1 Hz to 3 MHz |
| Video Bandwidth (VBW) Range | 1 Hz to 3 MHz |
Amplitude and Level
| Parameter | Value |
|---|---|
| Displayed Average Noise Level (DANL) | < -141 dBm (1 Hz) |
| Maximum DC Voltage | 50 V |
Tracking Generator (Options)
| Parameter | Value |
|---|---|
| Internal Tracking Generator | Included (Models .14 and .24) |
Inputs and Outputs
| Parameter | Value |
|---|---|
| Internal VSWR Bridge | Included (Model .24) |
| RF Input Connector | N female |
| RF Input Impedance | 50 Ω |
| LAN / Ethernet Interface | 10/100Base-T, RJ-45 |
| USB Interface | USB Host and Device |
| Removable Memory Slot | SD card |
Display
| Parameter | Value |
|---|---|
| Display Size | 6.5 inches |
| Display Resolution | 640 × 480 pixels |
Power Supply
| Parameter | Value |
|---|---|
| Battery Type | Li-ion (Field replaceable) |
| Battery Operating Time | Up to 4.5 h |
Physical Specifications
| Parameter | Value |
|---|---|
| Enclosure Features | Rugged, splash-proof housing |
Amplitude & Inputs
| Parameter | Value |
|---|---|
| Maximum Safe Continuous Power | +30 dBm (1 W) |
Sweep & Traces
| Parameter | Value |
|---|---|
| Data Points per Trace | 631 |
| Trace Detectors | Max Peak, Min Peak, Auto Peak, Sample, RMS |
| Trace Functions | Clear/Write, Max Hold, Min Hold, Average, View |
Features
| Parameter | Value |
|---|---|
| Audio Demodulation | AM and FM (via internal loudspeaker or headphone jack) |
Environmental
| Parameter | Value |
|---|---|
| Storage Temperature Range | -20 °C to +70 °C |
| Ingress Protection (IP) Rating | IP51 |
| Vibration (Sinusoidal) | 5 Hz to 55 Hz (0.15 mm), 55 Hz to 150 Hz (0.5 g) in line with EN 60068-2-6 |
| Vibration (Random) | 10 Hz to 300 Hz (1.2 g rms) in line with EN 60068-2-64 |
| Shock Resistance | 40 g shock spectrum in line with MIL-STD-810G / EN 60068-2-27 |
Amplitude & Level
| Parameter | Value |
|---|---|
| Third-Order Intercept (TOI) | > 10 dBm, typ. +15 dBm (300 MHz to 3.6 GHz) |
Tracking Generator
| Parameter | Value |
|---|---|
| Tracking Generator Frequency Range | 100 kHz to 3.6 GHz (Models .14 and .24) |
Inputs & Outputs
| Parameter | Value |
|---|---|
| External Trigger Input Connector | BNC female |
| External Trigger Level | TTL level |
| External Reference Input / Output | BNC female, 50 Ω |
| External Reference Frequency | 10 MHz |
Power
| Parameter | Value |
|---|---|
| Power Consumption | Typ. 12 W |
| AC Power Adapter Range | 100 V to 240 V AC, 50 Hz to 60 Hz |
Technology
Spectrum Analysis
Applications
Field Testing, Transmitter Station Maintenance, Network Analysis, Outdoor Work