Bird 4421

| Attribute | Value |
|---|---|
| Frequency Range | 25 MHz – 1000 MHz |
| Power Range | 100 mW – 10 kW |
| Connector Type | Type N Female |
| Impedance | 50 Ohms |
| Insertion Loss | Less than 0.05 dB |
| VSWR | 1.05:1 Maximum |
| Average Power Rating | 10 kW |
| Directivity | 30 dB Minimum |
| Element Compatibility | Compatible with Bird Thruline Wattmeter Elements |
| Operating Temperature | -20°C to +65°C |
Bird 4421 Options:
- 4421 - 4421-250 - Panel Mount Kit: Allows the Bird 4421 to be installed in a standard 19" panel for rack mount applications
- 4421 - 4380-250 - Null Modem Kit: Contains the hardware necessary to allow the 4421 to be remotely controlled by controllers with different wiring arrangements. Requires an RS-232 interface module
| Model | 4421 |
|---|
The Bird 4421 is a high-accuracy RF power sensor engineered for precise measurement in laboratory, industrial, and telecommunications environments. With durable construction and seamless integration into Bird systems, it ensures consistent results under continuous use.
Its rugged design guarantees reliability, offering engineers a dependable tool for monitoring, testing, and calibration tasks in demanding setups. Easy to handle, it delivers accuracy and long-term stability across varying conditions.
Testwall can supply the used Bird 4421, fully tested. With expert support and global delivery, Testwall ensures high-performance instrumentation with unmatched reliability and service quality. Please contact us directly if you need calibration or repair of the Bird 4421.




