Keysight Technologies 85309B LO/IF, User'S And Service Manual

Page: 36 / 88

2-18 Keysight 85309B User’s and Service Guide
Operating Information
Performing the Operator’s Check
2-
5. Zero and calibrate the power sensor.
6. Connect a test cable between PNA Port 1 and the power sensor.
7. To perform the source power calibration, select Cal > Power Cal > Source
Cal.
8. Make the following selections in the Source Power Calibration menu:
a. Channel 1 = Port 1
b. Tolerance = 0.1 dBm
c. Maximum number of readings = 50
9. Follow the calibration wizard instructions on the PNA to complete the
source power calibration. If necessary, refer to the section titled “Power
Calibration” in the embedded Help System of the PNA.
10. After completing the source power calibration, remove the power sensor
from the Port 1 cable.
11. Make the following selections to set the PNA receiver attenuator
1
B to 30
dB:
a. Select Power > Power and Attenuator.
b. Select receiver attenuator B.
c. Enter a value of 30 dB.
12. Connect a test cable to Port 2.
13. Connect a thru adapter between Port 1 and Port 2.
14. Normalize the receiver B trace. If necessary, get instructions by searching
the embedded Help System of the PNA for “normalize.” After normalizing,
the trace should be flat at 0 dBm.
15. Remove the thru adapter between the two test cables.
Checking the 85309B Test 1 LO/IF (J3) Channel
16. Connect a test cable between the PNA Port 1 and the 85309B rear panel
port LO Input (J1).
17. Connect a test cable between the PNA Port 2 and the 85309B rear panel
port Test 1 LO/IF (J3).
18.For a standard model or Option 00x models only: Compare the output
power traces from the Test 1 LO/IF (J3) port with the limits across the
entire frequency range in Table 2-3 on page 20 .
19.For Option 40x models only:
1. If the PNA receiver does not have an internal step attenuator, an external 30 dB pad
attenuator must be connected to Port 2.