BIRD SMK-3000 Series, Руководство пользователя

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Chapter 2 Equipment Description
RF Power Sensor Equipment Description
The RF Power Sensors are used to measure frequencies between 1 and 1000 MHz at power levels between 1 to 1000
Watts. The power sensors are Thruline® directional power sensors that simultaneously measure forward and
reflected power in 50  coaxial transmission lines. Assuming the operating condition of the sensor is within
operating specification limits, then the power sensors are accurate to within ± 3% of reading. An identification label
affixed to the top of the power sensor indicates power range, specified frequency band, and direction of the forward
traveling RF wave.
Display Options
The power sensors may be connected to a Bird 4421A RF Power Meter or a computer.
The Bird 4421A RF Power Meter connects to the sensor using an interface cable that provides a path for serial data
communication between the power sensor and the power meter.
A computer connects to the sensor using the USB Interface. The sensor is controlled using Standard Commands for
Programmable Instruments (SCPI) language. This interface allows a computer to send requests and receive
messages from the sensor without the use of a Power Meter.
Quick-Change Connectors
The RF Power Sensors are equipped with quick-change (QC) type N connectors. The power sensors are shipped from
the factory with one male (input) and one female (output) receptacle connector. However, the QC connectors allow
connectors of other types to be employed.
CAUTION
Only connectors that are in good condition should be used with the RF Power Sensor.
Damaged, worn, or improperly fitting connectors could impact the accuracy of field
RF measurements.