Bird - The RF Experts
Precision CW RF Sensors
4020 Series, Precision RF Power Sensors
Precision CW RF Sensors

Leading RF Power Sensor measurement performance for the most demanding applications


Bird Precision CW RF RF Power Sensors provide automatic correction for frequency response, wide operating power range, and a best in class measurement accuracy of +/-1% of reading for 4027 models. In many cases, these sensors find applications as high power measurement standards when paired with appropriate power measurement mainframes such as the Bird Model 4421A or 4421 instruments. Choose Bird Precision Power Sensors when accuracy and precision are your highest priority.

4020 Series, Precision RF Power Sensors
Precision CW RF Sensors
Check up to five products to compare
Item No
Item Name
Frequency Range
Power Input
Accuracy
Directional Power Sensors
100 kHz to 3 GHz, Sensor Dependent
0.3 W to 10 kW, Sensor Dependent
± 3% of reading, with no more than 1% AM, harmonics -50 dBc or less, terminating VSWR 2:1 or less
Precision Directional Power Sensors
250 kHz to 170 MHz, Sensor Dependent
N/A
± 1% at calibration frequencies and power levels
± 2% at other frequencies & power levels
Add 2% to uncertainty outside 25 ± 10°C
Filtered Precision Directional Power Sensors
1.8 MHz to 63 MHz, Sensor Dependent
N/A
±1% at calibration frequencies and power levels
±2 % at other frequency and power levels
Add 2% to uncertainty outside 25 ± 10 °C
High Power Precision Directional Power Sensors
250 kHz to 30 MHz, Sensor Dependent
N/A
± 2.0% (2 σ)

±2% at calibration frequencies and power levels
±3% at other frequency and power levels
Add 2% to uncertainty outside 25 ± 10 °C

Accuracy, RFL
Calculated from Fwd accuracy + (Fwd Power/10^ {directivity/10})

Accuracy, VSWR
Calculated from Fwd and Rfl power (VSWR = [1+Sqrt(Pr/Pf)] / [1-Sqrt(Pr/Pf)]

Accuracy, Outside Calibration Power and Frequency: ± 3.0% (2 σ)
Interface Module
100 KHz to 3 GHz , Sensor Dependent
N/A
N/A