DESCRIPTION:

The Bird Technologies 4412A Multipower RF Wattmeter is a rugged, analog directional power meter designed for flexible RF measurement tasks using Bird 4410-series plug-in elements, enabling coverage of a broad range of frequencies and power levels with fewer elements than traditional wattmeters. It provides forward and reflected average power readings for continuous-wave (CW) and frequency-modulated (FM) signals in 50 Ohm coaxial systems, making it suitable for transmitter tuning, antenna matching, and general RF diagnostics.

The 4412A incorporates temperature-compensated circuitry and dual selectable meter scales that enhance readability and dynamic range when paired with 4410-series elements. Its robust construction, Quick Change (QC) type connectors, and simple analog display make it ideal for both field and bench applications. Measurement capability spans from the low RF spectrum up through VHF/UHF bands depending on the installed element, and full scale power per element can range from milliwatts up to multiple kilowatts when using high-power elements.

Typical Use Suitability:
Engineered for broadband RF power measurement and diagnostics, the 4412A is well suited for service, maintenance, calibration labs, and production environments where modular frequency coverage and reliable analog power readings are needed. Its use of interchangeable elements enables users to tailor frequency and power coverage efficiently without needing multiple dedicated meters.

Key Features

• Multipower analog RF wattmeter designed for use with Bird 4410-series plug-in elements.

• Measures forward and reflected CW and FM power across a broad frequency spectrum (element dependent).

• Uses Quick Change (QC) connectors for easy element and cable interfacing.

• Dual meter scales for extended dynamic range and easy interpretation.

• Temperature-compensated circuitry for stable readings over environmental variation.

• Analogue needle display with rugged portable housing suited to field and bench use.