Anritsu MA4601A – Power Sensor

The Anritsu MA4601A Power Sensor measures RMS power of RF signals across wideband applications from 100 kHz to 5.5 GHz. It converts RF power into an electrical signal with fast response and consistent accuracy across various modulation formats. The sensor delivers ±3% linearity in the +10 dBm to +20 dBm range and integrates directly with the Anritsu ML4803A Power Meter for comprehensive signal analysis.

Technical Specifications

• Frequency Range: 100 kHz to 5.5 GHz


• Power Measurement Range: −30 dBm (1 µW minimum) to +20 dBm (100 mW maximum)


• Maximum Input Power: 300 mW average


• Impedance: 50 ohm


• Linearity: ±3% within +10 dBm to +20 dBm range


• VSWR: 1.3 (100 kHz to 300 kHz); 1.2 (0.3 MHz to 1 MHz); 1.1 (1 MHz to 4 GHz); 1.2 (4 GHz to 5.5 GHz)

Key Features

• Type N RF connector for standard 50 ohm systems


• Low insertion loss across the operating band


• VSWR performance optimized for precision across frequency decades


• Stable measurement accuracy supporting modulation-format independence

Typical Applications

• RF and microwave power measurement and verification


• Signal chain validation in transmit and receive paths


• Modulated signal power analysis


• Broadband power monitoring from LF through microwave bands

Compatibility & Integration The MA4601A operates as a sensor head with the Anritsu ML4803A Power Meter. Optional conversion connectors support integration with different connector types or impedance systems when required.