Discovering the Inner Workings of Our Advanced Testing System: Composition, Distinctive Features, and Benefits

At AmpliVisionS, the exceptional quality and high production yield of our RF power amplifiers are a direct result of our stringent testing procedures. Today, we will introduce the composition of our testing system, along with its unique characteristics and advantages.

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1. Components of the Automated Software Testing System

Instruments/Equipment Used:

Signal Generator, Spectrum Analyzer, Power Meter with Power Sensor, Two Power Supplies, Noise Figure Meter, Load/Attenuator, Oscilloscope, Function Generator, Computer

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2. Steps for Automated Software Testing of Power Amplifiers:

①Open the Automated Testing Software.

②Turn on the Equipment: Signal Generator, Power Meter, Power Supply 1, Power Supply 2.

③Set Parameters:

A. Signal Generator Parameters: Set start/stop frequency according to the protocol.

B. Power Supply 1 (Amplifier Power Supply): Set current and voltage.

C. Power Supply 2 (Enable Power?Supply, +6V?Range): typically recommend 3.3V.

D. Power?Supply3?(Fan Power Supply, +25V Range):?typically recommend 24V?(For fan).

E. Set Sweep Amplitude: Start/stop (as per protocol), sweep.

F. Sweep Settings: Choose sweep mode (normal for power testing). Note: Calibrate the power meter before use by selecting the appropriate calibration value based on the frequency range.

G. Power Meter Calibration: Connect the power meter probe to the power meter. Set Frequency Cal Factor according to the test module's compensation value. Perform Zero Cal (zero calibration), Zero, Cal, and Power Ref/on to verify calibration (should show around 0.1 for normal calibration).

④Load ATT: Before testing, measure ATT (attenuation) using a network analyzer and save the data. Choose suitable attenuators based on the amplifier’s frequency range and power level. ATT Measurement: Measure S21, set format to Log mag, set IF Bandwidth to 5/7 kHz, set start/stop frequency, scan, set Number of Points. Perform calibration: Response, Thru Response, save data as .prn file with format: frequency range + date + attenuation value.

⑤Connections:

A: Signal Generator output → Amplifier input → Amplifier output → Attenuator input → Attenuator output → Power Meter input.

B. Power Supplies: Connect VCC to Power Supply 1 positive, GND to Power Supply 1 negative, Enable to Power Supply 2 +6V positive, Enable GND to Power Supply 2 +6V negative, Fan positive to Power Supply 2 +25V positive, Fan negative to Power Supply 2 +25V negative. Ensure Power Supply 1 and Power Supply 2 share a common ground.

⑥Power On:

A. Turn on Power Supply 1 and 2 control switches.

B. Activate RF signal (RF ON).

C. Start the sweep and monitor data.

D. Save data if no anomalies are detected.

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3. Unique Advantages and Features of Our Testing System

A. Automation: Our testing system is automated, ensuring data accuracy.

B. Comprehensive Data: The system provides detailed data outputs.

C. Test Rack: Enables automatic testing of module temperature and current.

D. Calibrate multi-channels with N-way power divider: simultaneously?testing of parameters on both the spectrum analyzer and power meter?at same time.

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Overall, our automated test system has significant advantages in terms of accuracy, efficiency and data richness, which provides a solid foundation for ensuring the quality of our RF power amplifiers. If you are interested in our products and test systems, you can check our website (www.amplivisions.com) or ask for product brochures, we will show you our products and advantages in detail.