DESCRIPTION:
The Bird Technologies 4028B10M Directional Power Sensor is a high-power RF measurement sensor engineered to provide directional forward and reflected power readings over the 10 MHz to 15 MHz frequency band. It is part of Bird’s 4028 Series Precision RF Directional Thruline Power Sensors, tailored for demanding high-power RF applications where precision and repeatability are essential.
Designed for use with compatible Bird multifunction power meters such as the Bird 4421A Series, the 4028B10M offers ±2 % accuracy at calibrated frequency and power levels (with ±3 % typical outside calibration) and is calibration traceable to the National Institute of Standards and Technology (NIST) for confidence in long-term measurement stability. Its robust construction and plug-in design facilitate reliable measurement in industrial, broadcast, and communications systems where high-power RF signals must be assessed accurately.
Typical power handling for this model spans approximately 1.0 kW to 25 kW average, making it suitable for high-energy RF sources. Connector configuration (such as 1-5/8 inch EIA flanged or customer-specified options) must be chosen to match the installation environment and ensure full performance.
Typical Use Suitability:
Ideal for high-power RF monitoring, system commissioning, transmitter verification, and diagnostics in communications, industrial RF, and broadcast environments where accurate directional power measurements in the 10 MHz to 15 MHz band are required.
Key Features
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Frequency Range: 10 MHz to 15 MHz for low-VHF high-power applications
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Power Handling: 1.0 kW to 25 kW average (application dependent)
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Accuracy: ±2 % at calibrated frequency and power levels; ±3 % outside calibration
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Directional Measurement: Forward and reflected power sensing for complete RF diagnostics
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Impedance: 50 Ohm nominal
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VSWR (Max): ~1.05:1 (insertion)
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Directivity: 28 dB minimum
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Connectors: Typically 1-5/8 inch EIA flanged or customer-specified options
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Calibration: NIST traceable for measurement confidence