Question 1

What should I check if the output power of the power amplifier is lower than expected during testing?

Accepted Answer

Troubleshoot step by step: 1. Check if input signal meets standard requirements. 2. Verify ALC software settings are not set to low output. 3. Inspect rear-end components (cables, connectors, attenuators) for excessive loss. 4. Test the amplifier independently with professional instruments to confirm hardware faults.

Question 2

What are the possible causes if the power amplifier gain fails to meet expectations, and how to solve them?

Accepted Answer

Causes include software settings, system loss, and hardware failures. Solutions: 1. Adjust or disable ATT (Attenuator) parameters in control software. 2. Calibrate test system cables and components to ensure loss is within qualified range. 3. Test amplifier independently; if gain still fails, contact professional maintenance for hardware repair.

Question 3

How to accurately locate the problem if the software or instrument shows a high VSWR of the power amplifier?

Accepted Answer

Abnormal VSWR relates to link matching. Steps: 1. If detected by software, replace rear-end components (cables, connectors) one by one. 2. If detected by instrument, calibrate the test system first, then test the amplifier independently. 3. If VSWR still exceeds standards after replacing components and calibrating, it indicates a hardware fault requiring professional maintenance.

Question 4

What types of applications is this power amplifier suitable for?

Accepted Answer

It is suitable for wireless base station infrastructure (2G/3G/4G/5G), FDD communication systems, Distributed Antenna Systems (DAS), telecommunication repeater stations, private mobile networks, broadcasting equipment, and test & measurement applications.

Question 5

What connectors are used on this power amplifier?

Accepted Answer

There are 3 connectors in total: PAIN/LNA OUT are MCX connectors, and ANT is an SMA connector.

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