Anritsu Sitemaster S251B Cable & Antenna Analyzer

Anritsu Sitemaster S251B Cable & Antenna Analyzer

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Anritsu S251B   Cable & Antenna / RF

Anritsu SiteMaster S251B Broadband Two-Port Transmission Line and Antenna Analyzer With Option 10A Bias Tee Installed

Frequency Range:
625Mhz to 2500Mhz

Includes Eagle CKT050A Open/Short/Load Calibration Kit, Carrying Case & Accessories As Listed

Anritsu S251B S-251B SiteMaster Broadband Cable Antenna Analyzer Models On Sale Warranty Calibration Backed by The Best Service and Lowest Prices in the Industry.

The Site Master S251B is a broadband two-port transmission line and antenna analyzer that performs return loss (SWR), cable loss and distance-to-fault measurement for cellular, PCS/GSM and ISM market applications.

Site Master’s patented high RF interference rejection enables the S251B to accurately measure cable and antenna systems in the presence of high RF activity. In addition, the high dynamic range (>80 dB) enables the S251B to perform antenna-to-antenna isolation measurements.

Selectable output levels of +6 dBm or –30 dBm and optional built-in Bias Tee provide the S251B with a convenient means of verifying Tower Mounted Amplifier (TMA) gain before and after installation. Status of applied voltage and current load indicate the operation and function of the TMA.

Anritsu S251B

The Site Master Software Tools supplied with each S251B operates with Windows 95, Windows 98, and Windows NT. Software Tools can download traces and cable parameters to S251B via the RS-232 serial port.

– Accurately Tests Return Loss/SWR in Transmission Line and Antenna Systems
– High Immunity to Live Site RF Interference
– Extended Distance-to-Fault Range
– 10 User Configurations include Calibrations
– Increase Current Capability (to 240 mA) with Built-in-Bias Tee
– Gain/Insertion Measurement
– RF Source 625 to 2500 MHz at 10 kHz steps
– Trace Storage with Date/Time Stamp, Alphanumeric labeling (up to 200 memory locations)
– Trace and Cable Parameters Downloadable to Site Master
– Trace Overlay, Trace Math
– Large VGA Display (640 x 480)
– Display Resolution Settings: 130, 259, 517 data points
– 5-Segment Limit Line
– Printer Driver Compatibility with Epson, Canon, Citizen, and HP
– Field Replaceable Battery-NiMH

Wireless Network Field Measurements
– Cable and Antenna testing for VHF, broadcasting, paging, cellular, PCS/GSM, 3G, ISM, WLAN and WLL applications
– Return Loss measurement
– Distance-To-Fault measurement
– Cable loss measurement Tower Mounted Amplifier Testing
– Enables two port gain/loss measurement with selectable power output and an optional built-in BiasTee Wireless Network Field Measurements
– Antenna isolation measurement is easily tested with >90 dB dynamic range


– Frequency Range: 625 to 2500 MHz
– Frequency Accuracy: (CW mode) 75 ppm
– Frequency Resolution: 10 kHz
– Display Resolution: 130, 259, 517 data points
– Sweep Rate Typical values w/calibration: 25 ms/data points
– Immunity to Interfering RF Signals up to*: 2 +10 dBm, RF out +30 dBc, RF in
– Return Loss: Range: 0 to 54 dB Resolution: 0.01 dB
– SWR: Range: 1 to 65 Resolution: 0.01
– RF Source Frequency Power Output (nominal): 625 to 2500 MHz at 10 kHz step Selectable, –30 dBm or +6 dBm
– Insertion Loss/Gain: Range: –120 to 100 dB Resolution: 0.1 dB
– Distance-to-Fault Vertical range: Return loss: 0 to 54 dB SWR: 1 to 65 Horizontal range (meter): 0 to (data points x resolution), (where data points= 128, 256, 512) Horizontal resolution, (rectangular windowing) (meter): (1.5 x 108) (V?)/ ? frequency*3
– Cable Loss: Range: 0 to 54 dB Resolution: 0.01 dB
– Test port connector: Precision N female
– Maximum input without damage: N(f) test port: +22 dBm RF power detector: +20 dBm, 50 O
– Trace memory: up to 200
– Instrument configuration with calibration: 10
– Custom cable configuration: 50
– Temperature: Operating: 0 to 50°C, Storage: –20°C to 75°C
– Weight: 1.81 kgs (4.0 lbs.)
– Size: 25.4 x 17.8 x 6.10 cm (10 x 7 x 2.4 in.)
– General: Electromagnetic compatibility: Meets European community requirements for CE marking. RS232: 9 pin D-sub, three wire serial
– Wattmeter (RF power monitor, Option 5) Display range: –80 to +80 dBm, 10 pW to 100 kW Detector range: –45 to +20 dBm, 32 nW to 100 mW Offset range: 0 to +60 dB Resolution: 0.1 dB, 0.1 x W

Condition: Refurbished / Calibrated
Warranty: 90 Day Exchange

– Anritsu SiteMaster S251B Broadband Two-Port Transmission Line and Antenna Analyzer (BC# 16730)
-Option 10A: Bias Tee
– Armored Test Port Cable
– Eagle CKT050A Open/Short/Load Calibration Kit
– SiteMaster Software Tools Software
– DC Car Charger
– AC Adapter/Charger
– Power Cord
– RS232 PC Interface Cables
– Carrying Case (G)

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Anritsu Sitemaster S251B Spec Sheet


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