The Anritsu Site Master S331A is a handheld cable and antenna analyzer designed for measuring standing wave ratio (SWR), return loss, and cable insertion loss, as well as locating faulty RF components in antenna systems. It features a built-in synthesized signal source, distance-to-fault (DTF) capability, and an optional power monitor, making it an essential tool for field technicians working on RF and telecommunication transmission systems.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | RS-232 serial interface |
| Display | Liquid Crystal Display (LCD) with front panel activated backlight |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 12.5 VDC external input or internal rechargeable battery |
| Operating Temperature | 0 to 50 °C |
| Dimensions (W×H×D) | 203 × 152 × 51 mm |
| Weight | 1.36 kg |
Frequency Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 25 to 3300 MHz |
| Frequency Resolution | 100 kHz |
Measurement Performance
| Parameter | Value |
|---|---|
| SWR Measurement Range | 1.00 to 65.00 |
| SWR Measurement Resolution | 0.01 |
| Return Loss Measurement Range | 0.0 to 54.00 dB |
| Return Loss Measurement Resolution | 0.01 dB |
| Cable Insertion Loss Range | 0.0 to 20.00 dB |
| Cable Insertion Loss Resolution | 0.01 dB |
| Power Monitor Range (Option) | -50.0 to +20 dBm (10.0 nW to 100.0 mW) |
| Power Monitor Offset Range (Option) | 0 to +60.0 dB |
RF Port & Power Specifications
| Parameter | Value |
|---|---|
| Test Port Connector | Type N, female |
| Test Port Impedance | 50 Ω |
| Interfering Signal Immunity | up to -15 dBm |
| Maximum Input Level (Test Port) | +22 dBm |
| Maximum Input Level (RF Detector) | +20 dBm |
Calibration & Functions
| Parameter | Value |
|---|---|
| Distance-to-Fault Capability | Built-in (conversion via companion Software Tools) |
| Limit Line Alert | Audible beep on limit value exceedance |
Power & Battery Management
| Parameter | Value |
|---|---|
| Battery Operating Time | Up to 2 hours of continuous operation from a full charge |
| External DC Power Input | 12.5 VDC |
Environmental
| Parameter | Value |
|---|---|
| Storage Temperature | -20 to 75 °C |
Data Storage
| Parameter | Value |
|---|---|
| Trace Storage Capacity | 20 traces |
Performance
| Parameter | Value |
|---|---|
| Number of Sweep Points | 130 points |
| Sweep Speed | 3.5 s (130 points) |
| Frequency Accuracy | 75 ppm |
System Performance
| Parameter | Value |
|---|---|
| Corrected Directivity | ≥ 42 dB |
| Corrected Source Match | ≥ 30 dB |
Electrical Specifications
| Parameter | Value |
|---|---|
| Maximum DC Voltage (Test Port) | ±50 VDC |
Calibration
| Parameter | Value |
|---|---|
| Calibration Support | OSL (Open, Short, Load) |
Environmental & Standards
| Parameter | Value |
|---|---|
| Maximum Operating Altitude | 4,572 m (15,000 ft) |
| Relative Humidity | 95% maximum, non-condensing |
| Shock and Vibration resistance | Meets MIL-T-28800E, Class 5 |
Technology
Synthesized Signal Source, Cable & Antenna Analyzer
Applications
SWR, Return Loss, Cable Loss, and Distance-To-Fault (DTF) measurements in RF antenna systems