Making Loss/Gain Measurements; Purpose; Making The Measurement - Agilent Technologies ESA-E Series User Manual

Making Loss/Gain Measurements

Purpose

Loss/gain measurements are used to verify the performance of devices or
components as illustrated by the following examples:
• A loss measurement can be used to test the performance of a base station's
• A gain measurement can be used to test the performance of an amplifier. A

Making the measurement

The spectrum analyzer must be in spectrum analyzer mode for this measurement.
For the following procedure, use the appropriate 50 ohm or 75 ohm cables and
accessories listed in
Table 3-4 Cables and Accessories
Cable/Accessory
Coaxial cable
1. Connect the tracking generator to the device input and the device output to the
Chapter 3
cables. Lower than expected base station power measurements could be caused
by faulty cables. A cable's role in the problem can be determined by measuring
the loss of the cable and comparing the result to the expected value.
lower than expected gain measurement could indicate a fault with the amplifier.
Table 3-4.
input of the spectrum analyzer as shown in
Making Loss/Gain Measurements
Quantity 50 Ohm Setup
Part Number
2 8121-0101
Figure 3-8.
Making Measurements
75 Ohm Setup
Part Number
5062-6452
29