CW Antenna Verification Test

Cleaned Video Transcript / Study Notes

The next test is the CW Antenna Verification test.

This test confirms that the DAS is installed correctly and that each antenna is producing the expected signal level.

1. Configure the Test

Begin by setting up the CW Antenna Verification configuration.

This includes the basic pass/fail criteria for the test.

Before measurements can be taken, the antennas must be placed on the floor plan.

Return to the floor plan view to begin setting up the antenna locations.

You can use the visibility icon to turn off visual overlays if they are blocking the floor plan or making it difficult to see the layout.

2. Add Transmitter / Antenna Locations

Add a transmitter point to the floor plan if needed.

This step is optional, but it can help document the test setup.

In this workflow, the transmitter points represent the antenna locations.

Place each antenna on the floor plan where it is physically installed.

Once the antennas are placed, each one can be tested.

3. Purpose of the CW Antenna Verification Test

The goal of this test is to validate that the DAS is connected and installed correctly.

This includes confirming that:

• Power dividers are connected in the correct orientation
• Cable connections are properly made
• Antennas are functioning correctly
• Each antenna has the appropriate output power
• The system is balanced as expected

This test verifies that the DAS is hooked up correctly before moving on to later commissioning tests.

4. Connect the Signal Generator

Go to each transmitter or antenna location.

Connect the signal generator to the DAS.

For this example, the downlink test channel is:

773 MHz

The signal generator is set to inject:

0 dBm

into the DAS.

5. Measure Each Antenna

At each antenna, stand approximately:

10 feet away

The measurement should be taken at approximately a:

45-degree angle

This helps ensure the scanner is measuring in the main coverage area of the antenna pattern.

Take the downlink measurement at each antenna.

In this example, one downlink measurement reads:

-34 dBm

After taking the measurement, add it to the report.

Once added, the antenna icon changes color to show that the antenna has been tested.

Repeat this process for every antenna in the DAS.

6. Confirm Similar Power Levels

The purpose of repeating the measurement at each antenna is to verify that the system is performing consistently.

Typically, each antenna should show the same or very similar power levels.

Large differences between antennas may indicate an installation issue, such as:

• A power divider installed backward
• Incorrect splitter or tapper value
• Damaged cable
• Poor connector
• Incorrect antenna connection
• Missing or disconnected antenna

7. Review the Results

After all antennas have been measured, return to the CW Antenna Verification results.

If the test shows a failure, check which channels are included in the grading.

In this example, the test appears to fail because the results include:

• The uplink test channel
• The control channel

Those channels were not intended to pass this CW Antenna Verification test.

The intended test channel is the downlink test channel:

773 MHz

Once the correct downlink channel is reviewed, the results show that:

100% of the antennas passed on 773 MHz.

Final Summary

The CW Antenna Verification test confirms that the DAS is installed correctly and that each antenna is radiating at the expected level.

This test documents:

• Antenna locations
• Signal generator setup
• Downlink test channel
• Injected signal level
• Measurement distance
• Measurement angle
• Antenna-by-antenna results
• Pass/fail status

In this example, the DAS passes antenna verification because all antennas pass on the 773 MHz downlink test channel.