Esp32 with external antenna

Hi David
Keep the antenna lead as short as possible or you will lose most of the signal in the cable.
Try and find a vertical whip type designed to be mounted on a ground plane (the metal surface of the container. This should work better than one just hanging off the end of the cable. If the container and the other end are going to remain stationary a directional antenna could be considered for better results.
Cheers Bob

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