User Manual

Test Equipment Calibration – continued
F-24 1X SC4812T–MC BTS Optimization/ATP 5/21/04
DRAFT
Table F-17: HP 437 Power Meter Calibration Procedure
Step Action
6 Press [ZERO].
– Display will show “Zeroing ******.”
– Wait for process to complete.
7 Connect the power sensor to the POWER REF output.
8 Turn on the PWR REF by performing the following:
8a – Press [SHIFT] then [’].
8b – Verify that the triangular indicator (B) appears in the display above PWR REF as shown below.
9 Perform the following to set the REF CF%:
9a – Press ([SHIFT] then [ZERO]) for CAL.
9b – Enter the sensor’s REF CF% from the sensor’s decal using the arrow keys and press [ENTER].
(The power meter will display ”CAL *****” for a few seconds.)
NOTE
If the REF CAL FACTOR (REF CF) is not shown on the power sensor, assume it to be 100%.
10 Perform the following to set the CAL FAC %:
10a – Press [SHIFT] then [FREQ] for CAL FAC.
10b – On the sensor’s decal, locate an approximate calibration percentage factor (CF%) at the test
frequency.
10c – Enter the sensor’s calibration % (CF%) using the arrow keys and press [ENTER].
–– When complete, the power meter will typically display 0.05 dBm. (Any reading between
0.00 and 0.10 is normal.)
11 To turn off the PWR REF, perform the following:
11a – Press [SHIFT] then [’].
11b – Disconnect the power sensor from the POWER REF output.
Gigatronics 8542 power meter
(Calibration)
Precise transmit output power calibration measurements are made using
a bolometer–type broadband power meter with a sensitive power sensor.
Follow the steps in Table F-18 to enter information unique to the power
sensor. Refer to Figure F-16 as necessary.
F