Several people in another thread have indicated that, yes. It is very believable in that I have had other issues with the Mega 3V3 supply and radio's in general. In virtually every situation where a complex device like a radio is connected to a "Cable" meaning a set of wires more than about 3 cm in length a bypass capacitor across the power leads at the end of the cable that connects to the external device. In the cases where my sensors were not working properly a 10uF tantalum (what I had to hand) and a 100 nF cap fixed everything but my bad code... Didn't help that one bit.
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