Bird 4021 Directional RF Power Sensor

The Bird 4021 is a directional RF power sensor designed for accurate measurement of forward and reflected power in RF systems. It operates within a specific frequency range and is rated for a defined power input, offering a cost-effective solution for maintaining critical RF systems. This sensor is engineered for applications requiring reliable power measurement and signal integrity.

### Technical Specifications

* **Manufacturer:** Bird Technologies
* **Model:** 4021
* **Series:** 4020 Series
* **Product Type:** Directional RF Power Sensor / Directional Power Sensor / RF Thruline Power Sensor

#### Electrical Specifications

* **Frequency Range:** 1.8 MHz to 32 MHz
* Some sources also indicate a range of 1.5 MHz to 32 MHz.
* **Power Input Range:**
* 300 mW to 1 kW
* 1.2 kW maximum
* Some sources indicate a range of 3 W to 10 kW.
* **Impedance:** 50 Ohms
* **Accuracy (Forward):** ±3% of reading from rated maximum to rated minimum
* Specifically, ±3% of reading from rated max. range down to 30% of full scale on the most sensitive range.
* The Bird 4421 power meter, which is compatible with this sensor, is noted for pushing the accuracy bar to 3%.
* **VSWR Measurement Range:** 1.00 to 2.00 (equivalent to 40.0 to 9.5 dB Return Loss)
* **Directivity:** Minimum 30 dB
* **Insertion Loss:** Maximum 0.05 dB (with female N-Type connectors)
* **VSWR (Maximum):** 1.05:1
* **Sampling Rate:** Nominal 2 readings per second

#### Interfaces and Connectivity

* **Connectors:** N-Type (F) standard. Other connectors are customer-specified from a Quality Control list appropriate for frequency and power.
* Caution: Changing the sensor’s connectors will invalidate calibration data and may reduce the maximum power rating.
* **Power Meter Compatibility:** Designed for direct plug-in operation with the industry-standard Bird 4421 Multifunction Power Meter.
* **External DC Power:** 12 VDC required, supplied from the Bird 4421A Multifunction Power Meter.

#### Physical Characteristics

* No specific physical dimensions or weight data were found in the provided search results.

#### Operational Details

* **Calibration:** Maintains calibration for 12 months with the 4421A500 Series Calibration Kit. Calibration procedures are available in technical bulletins.
* **Operating Environment:** Suitable for lab or field use.
* **Load VSWR:** Do not use with a load VSWR greater than 2:1.

### Why Choose Aumictech for Bird 4021?
At Aumictech, we specialize in supplying high-end RF test and measurement equipment. Whether you need precise forward and reflected power measurements, reliable signal conditioning for critical RF systems, or accurate calibration support, our team ensures the Bird 4021 delivers maximum performance for your application. We understand the importance of maintaining system uptime and process consistency in demanding RF environments, providing the confidence and data you need for effective maintenance and operational integrity.