FlightHawk RF Test Set
50
Measurement procedure
1.
Connect the 5017D-AV sensor to the cable or communications system. See
"Sensor Connection" on page 48
2.
Zero the WPS. See
3.
Tap the
4.
Tap Configuration.
5.
Enter the Offset value (total attenuation of couplers and attenuators
connected to the WPS, if used).
6.
Enter Filter Value. See
for an explanation of the
filter.
7.
Tap the Display Controls Menu
8.
Tap Readings.
Zeroing a Sensor
Over time, the sensor's “zero value” (reading with no applied RF power) can
drift, making all readings inaccurate by this value. For example, if the zero value
is 0.02W, measuring a 50 W signal will give a reading of 49.98 W, a 0.04% error.
Measuring a 1 W signal will give a reading of 0.98 W, a 2% error. If the drift
would be a significant error, zero the sensor.
Note:
RF power must be turned off before zeroing a power sensor.
1.
Ensure the sensor has reached a stable operating temperature.
2.
Tap the Sensor Operation Menu .
3.
Tap the Device Actions item.
4.
Tap Zero Cal.
5.
Verify no RF is applied to the sensor.
6.
Tap OK if no RF is applied.
Note:
Calibration may take up to 40 seconds. Do not interrupt the
calibration. A "Performing Zero Calibration" message will be displayed
during the calibration.
