Anritsu MA2490A Wideband Sensor, 50MHz to 8GHz

The Anritsu MA2490A is a wideband power sensor delivering accurate measurements across 50 MHz to 8 GHz. It interfaces with Anritsu ML2480 and ML2490 series power meters to characterize average/CW, peak, and crest factor across complex signal types including W-CDMA, WLAN, WiMAX, radar, 3G/4G, and OFDM signals. An internal FET switch enables dual-mode operation - wideband sensing and chopped CW measurement for enhanced low-power stability.

Calibration data stored in onboard EEPROM permits automatic frequency, power, and temperature correction by the connected meter.

Technical Specifications

• Frequency Range: 50 MHz to 8 GHz


• Dynamic Range: -60 dBm to +20 dBm (CW Mode); 80 dB total with five overlapping amplifier ranges (R1–R5) in CW, three ranges (R7–R9) in pulse modulated mode


• Video Bandwidth: 20 MHz


• Rise Time: < 18 ns (pulse modulated mode)


• Sensor Linearity: < 7% (50–300 MHz); < 3.5% (0.3–8 GHz)


• VSWR: < 1.17 (50–150 MHz); < 1.22 (0.15–2.5 GHz); < 1.25 (2.5–12.4 GHz); < 1.25 (12.4–18 GHz)


• Trigger Delay: 0–999 ms (CW mode) with 0.5% display period or 100 ns resolution


• Trigger Capture Time: Up to 1 ns resolution


• RF Connector: N Type Male

Key Features

• Measures amplitude-varying signals characteristic of modern wireless and radar systems


• Dual-mode sensor operation for both wideband and CW applications


• Trigger modes: Manual, Auto, continuous, External (TTL/RF blanking), GPIB


• Precision RF connectors with hexagon coupling nut for torque-wrench assembly


• Compatible with PowerMax™ GUI software for visualization and remote control

Typical Applications W-CDMA, WLAN, WiMAX, radar, 3G/4G, OFDM signal characterization

Compatibility & Integration Anritsu ML2480 and ML2490 series power meters