DESCRIPTION:

The Bird Technologies 4421A-20-11-0 Dual Sensor Multifunction Power Meter is designed to operate with two Bird RF power sensors simultaneously, enabling parallel measurement of RF power parameters for efficient testing and diagnostics. This model includes an RS-232 serial interface, allowing straightforward integration into automated test systems, legacy control environments, and PC-based monitoring setups.

The meter supports average power, peak power, and directional power measurements depending on the connected sensors. When used with directional sensors, it can display forward and reflected power and calculate critical RF system metrics such as VSWR and return loss, providing immediate insight into transmission line and antenna performance. Dual-sensor capability allows users to monitor two points in an RF chain at once or compare measurements side by side.

Designed for bench, production, and field service use, the 4421A-20-11-0 delivers stable and repeatable performance across a wide range of frequencies and power levels as defined by the attached sensors. Key characteristics include dual-sensor operation, support for average and peak measurements, RS-232 serial control, compatibility with Bird’s directional and wideband sensor portfolio, and sensor-based calibration to maintain long-term measurement accuracy.

Typical Use Suitability:
Well suited for automated RF testing, comparative measurements, and system commissioning in communications, broadcast, and industrial environments where RS-232 control and dual-sensor capability are required.