Anritsu MA2481B Universal Power Sensor, 10MHz to 6GHz

The Anritsu MA2481B Universal Power Sensor delivers true RMS power measurements across 10 MHz to 6 GHz, supporting CW, multi-tone, and complex modulated waveforms including 3G, 4G, and OFDM signals. Built around three cascaded diode pairs operating in the square law region, it captures accurate average power from -60 dBm to +20 dBm with 3% linearity across its full frequency and dynamic range. The sensor integrates internal EEPROM calibration storage indexed by frequency, power, and temperature, enabling automatic correction through compatible Anritsu power meters.

– Technical Specifications

• Frequency Range: 10 MHz to 6 GHz
• Power Measurement Range: -60 dBm to +20 dBm
• Dynamic Range: Up to 80 dB (True RMS)
• Sensor Linearity: 3% across 10 MHz to 6 GHz (-60 to +20 dBm)
• Fast CW Mode Linearity: 1.8% (with Option 1)
• Rise Time: <0.004 ms (Option 1 enabled)
• Impedance: 50 Ohm
• RF Connector: N-type male with precision coupling nut

– Key Features

• True RMS detection for any signal type—CW, multi-tone, or modulated
• Three cascaded diode pairs configured for square law operation
• Fast CW measurement mode with TDMA and pulse measurement capability (Option 1)
• Frequency-compensated calibration via internal EEPROM
• Automatic interpolation and temperature correction by compatible power meters

– Typical Applications

• RF power measurement in laboratory and field environments
• Complex modulation characterization (3G GSM, HDTV, EDGE, digital audio broadcast)
• OFDM and 4G signal testing
• Pulse and TDMA waveform measurement

– Compatibility & Integration

Designed for use with Anritsu ML2400A and ML2430 series power meters. Firmware revision 3.10 or higher required for optimal performance with MA24xxD series sensors.