The Anritsu S331L Site Master is a handheld cable and antenna analyzer operating from 2 MHz to 4 GHz, delivering VSWR, return loss, cable loss, and distance-to-fault measurements in field environments. A built-in power meter extends functionality from 50 MHz to 4 GHz with measurement range of -33 dBm to +20 dBm. The 7.0-inch daylight-viewable TFT touch screen (800 x 480 resolution) enables rapid field diagnostics with return loss measurement speed ≤ 1.50 ms/data point and DTF speed ≤ 1.75 ms/data point. Frequency accuracy of ± 5 ppm @ 25 °C and 1 kHz resolution support precision cable and antenna characterization.
Dust and splash-resistant construction withstands challenging field conditions across the operating temperature range of -10 °C to +55 °C. The lithium-ion battery provides > 8.0 hours typical runtime at 70% brightness. Weighing 8.0 hours typical @ 70% brightness
• Operating Temperature: -10 °C to +55 °C
• Dimensions/Weight: 250 x 177 x 61 mm; 1000 internal trace files; USB flash drive external storage
– Key Features
• RF immunity: +17 dBm (on-channel), +13 dBm (on-frequency)
• Selectable Smith Chart impedance: 50 Ω/75 Ω (Advanced mode)
• Distance-to-fault measurements for both return loss and VSWR
• Cable loss and 1-port phase analysis (Advanced mode)
• Offset range: ± 100 dB user-settable
• Impact, dust, and splash resistant construction
– Measurements
VSWR, return loss, cable loss (one port), distance-to-fault return loss, distance-to-fault VSWR, RF power (50 MHz to 4 GHz), Smith Chart (Advanced mode only), 1-port phase (Advanced mode only), transmission with external sensor (Advanced mode only), VIP mode with USB Video Inspection Probe (sold separately).
– Compatibility & Integration
Two USB 2.0 Type A ports and one USB Type mini-B for PC data transfer. Includes AC-DC adapter and automotive 12 VDC/60 W power adapter. Soft carrying case, stylus with tether, torque multiplier, and Anritsu Software Tool Box disc provided.
