Anritsu S331A
Anritsu S331A Site Master
Description
The Anritsu S331A Site Master is a hand held SWR/RL(standing wave ratio/return loss) and Distance-To-Fault measurement instrument that includes a built-in synthesized signal source and an optional power monitor.
S331A uses a keypad to enter data and a liquid crystal display (LCD) to provide a graphical indication of SWR or RL over the selected frequency range.
The Site Master S331A has a built-in distance-to-fault capability.
The Site Master S331A, allows measurement data to be converted to Fault Location via the companion Software Tools program.
The S331A Site Master is capable of up to two hours of continuous operation from a fully charged internal battery.
The S331A can also be operated from a 12.5 dc source (which will also simultaneously charge the battery). Built-in energy conservation features can be used to extend battery life over an eight-hour work day.
The S331A Site Master is designed for measuring SWR, return loss, or cable insertion loss and locating faulty RF components in antenna systems. Power monitoring capability is available as an option.
The displayed trace can be scaled and/or enhanced with settable frequency markers and/or a limit line.
A menu option provides for an audible “beep” when the limit value is exceeded. To permit use in low-light environments, the LCD can be back lit using a front panel key.
Key Points
Accurate return loss/SWR measurements
Accurately tests RF transmission lines and antennas
Immunity to live site RF interference
Distance-to-fault windowing functions
Optional wattmeter
Synthesizer accurate to 75 ppm
Internal memory saves up to 70 traces
Direct printing via RS-232 serial port
Remote operation via RS-232 serial port
S331/S331A/S331B: 25 MHz to 3.3 GHz
Specifications
Frequency Range: 25 to 3300 MHz
Frequency Accuracy (CW Mode): 75 parts per million @25°C
Frequency Resolution: 100 kHz
SWR Range: 1.00 to 65.00
SWR Resolution: 0.01
Return Loss Range: 0.0 to 54.00 dB
Return Loss Resolution: 0.01 dB
Cable Insertion Loss:Range - 0.0 to 20.00 dB, Resolution -
0.01 dB
Storage Temperature: –20° C to 75° C
Operation Temperature: 0° C to 50° C
Distance-To-Fault (DTF):Range - 0 to (Resoution x 129)
Test Port: Type N 50 Ohms
Typical Immunity to Interfering Signals up to the level of: +10 dBm Maximum Input (Damage Level): +22 dBm
Weight: 2.2 pounds
Size: 8x7x2 1/4 inches
