Last week-end, we were going to have a trip. While I was preparing the car, the baby reseted the radio station list... I unfolded the antenna into a vertical position to optimize the reception and restarted the channel scan.
During the trip, as soon as we reached the 80km/h (50mph) we could hear a whistling and it was really loud at 120km/h (75mph). After 20 minutes and several stops for inspections, I remembered about the antenna, stopped, and folded the antenna as horizontally as possible.
Guess... the whistling immediately disappeared
Denis.
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