Filter
Top Products
Chapter 4 83
Overview of the Test Set’s Built-In Tools
Using the RF Tools Program
To use a laptop interface other than the BTS Laptop Utility
1. If Use BTS Laptop Utility is set to Yes, change it to No by
selecting the field.
2. Position the cursor at Send Test Results to and select it. A
Choices menu appears.
3. Position the cursor at Serial 9 and select it.
4. Position the cursor at Serial Port Settings 9 and select it. A list
of serial port settings appears.
5. Confirm that these serial port settings and the settings on the laptop
match.
6. Press
k5
(Return) to return to the Test Results/BTS
Utility/Printer/Serial Setup.
7. Press
k5
(Return) to exit the setup.
Swept Gain
Measurement Description
This test measures the gain of a device by sweeping it over the specified
frequency range. Gain is the ratio of the output power to the input
power. For the swept gain test, gain is measured in dB. The gain is the
output power in dBm minus the input power in dBm. For example, if
the amplifier has an output of 22 dBm and an input of 4 dBm, it has a
gain of 18 dB.
Making the Measurement
NOTE
This test radiates a test signal when testing antennas or cables with
antennas attached to them. Verify that the level and frequency span
used for the test cannot result in interference to other nearby antennas.
To minimize interference when running the program, set the power
level at the DUPLEX OUT port to the minimum value needed for good
measurement resolution. Set the frequency range carefully.
1. Select Swept Gain from the Select Test (Main) Menu. The Swept
Gain Measurement menu will appear.