Agilent Technologies manual Agilent E6474A User’s Guide 115

NOTE

Get Assistance, if You Need It 6

The Agilent receiver requires a 30-minute warm-up period to meet the guaranteed specifications. There is a three-minute delay after power-up or re-configuration, before the internal temperature sensor is activated and measurements are nominally correct.

Preparing the software

1Start the E6474A software.

2Refer to “Identifying devices" on page 81, and perform the procedure if you have not already done so.

3Click Log > Start Live Mode.

4Open the Spectrum Analyzer view and maximize the view.

5Set the measurement controls as follows: Band: Downlink

Frequency: See the tables on the next page.

Span: 300 kHz

Averaging: Running

Averages: 100

6In the Markers group, click Add button then To Max and note the Marker 1 frequency and level. The level and frequency are displayed at the top-left corner of the Spectrum Analyzer view.

7In the Markers group, click Add to place a second marker on the display.

8Use the mouse to drag Marker 2 to the minimum level of the trace. Note the Marker 2 frequency and level.

9Calculate the average noise level of the downlink. Average noise level = (Marker 1 level + Marker 2 level) / 2

10Select Uplink in the Band group. Frequency is displayed on the Spectrum VFP.

11Perform steps 7 through step 10 to determine the average noise level of the uplink. Substitute the frequencies from Table 6 on page 116 in step 6. Average noise level = (Marker 1 level + Marker 2 level) / 2

Agilent E6474A User’s Guide 115