Part 3/6:
Testing and Calibration Using Signal Generators
Once the hardware is updated, the next step involves testing the receiver's frequency response. Using a precise signal generator set at around 3.1255 Megahertz, the technician tunes the device to identify its resonant point—the frequency at which the receiver picks up the strongest signal.
Visual inspection of internal components confirms functional operation. This step underscores the importance of careful tuning and calibration, verifying that the newly replaced components successfully restore the device's ability to receive signals accurately.