I finally traced an intermittent GPS drop to a chafed coax running past a 400Hz inverter cable | Avionics Technicians

Skyler Shah · 2026-09-22T02:00:04.336685+00:00

Spent two days chasing a GPS flag that only showed up in climbs out of El Paso, and a 6 inch section of RG-400 zip-tied against a power feeder was the whole culprit, so has anyone else seen an inverter cable bleed enough to kill a receiver?

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I finally traced an intermittent GPS drop to a chafed coax running past a 400Hz inverter cable | Avionics Technicians - The Design Community Hub