Agilent Technologies E1401-90493

376 Chapter 2

Performance Verification Tests

49. Tracking Generator LO Feedthrough: Agilent E4402B, E4403B, E4404B, E4405B, E4407B,

and E4408B(Option 1DN)

49. Tracking Generator LO Feedthrough:

The tracking generator output is connected to the analyzer 50 W Input,

and the tracking is adjusted at 50 MHz for a maximum signal level. The

tracking generator output is then connected to the input of a microwave

analyzer. The tracking generator is tuned to several different

frequencies and the LO Feedthrough is measured at the frequency

extremes of the LO.

The related adjustment for this procedure is “TG LO Leveling.”

Equipment Required

Microwave analyzer

Cable, Type-N, 62 cm (24 in)

Cable, BNC, 23 cm (9 in)

Adapter, Type-N (m) to BNC (f)

Procedure

1. Connect the equipment as shown in Figure 2-69.

Figure 2-69 LO Feedthrough Amplitude Test Setup

NOTE Note that the following steps are for an Agilent 8563E microwave

analyzer, the steps may be different if you are using another microwave

analyzer.

1. Press PRESET on the microwave analyzer.

The microwave analyzer should be allowed to warm up for at least