Which approach helps NANTeL handle calibration of diverse sensors without cross-talk?

• A. Relying on a single signal path with generic shielding.
• B. Using separate signal paths, proper shielding, independent calibration procedures, and cross-channel checks to identify anomalies.
• C. Calibrating only when channels indicate discrepancies.
• D. Disabling cross-channel checks to speed up calibration.

Answer: (B)

Separating signal paths and shielding each channel is essential to prevent cross-talk when calibrating diverse sensors. When channels share a path or have weak shielding, signals from one sensor can leak into others, creating calibration offsets that look like drift or miscalibration. Using independent signal paths keeps each sensor’s output isolated, and proper shielding further minimizes electromagnetic or capacitive coupling that could contaminate measurements.

Independent calibration procedures mean each channel is adjusted on its own terms, so a change in one sensor doesn’t bias the others. Cross-channel checks act as a safety net: during calibration, the system compares outputs across channels to detect anomalies, triggering rechecks if anything looks off rather than letting drift go unnoticed. This setup is especially important for diverse sensors, which may have different ranges and response characteristics; keeping signals clean and measurements independent ensures accurate calibration for every channel.

Relying on a single path with generic shielding, calibrating only when discrepancies appear, or disabling cross-channel checks would all increase the risk of undetected cross-talk and drift, making the calibration unreliable.