I think that by April 1912 Jack Binns would have been a rather famous personality following his work on board the
Republic just over 3 years earlier. If he was present with David Sarnoff at the Wanamaker wireless station on that Sunday-Monday night, surely neither the Wanamaker publicists nor Sarnoff himself could have made up the story about receiving the distress signal? Can it be that it actually happened but by embellishing his story later, Sarnoff inadvertently diminished his own credibility in the eyes of later researchers?
I cannot answer that question directly but can do so in a roundabout way. Growing up in Bangalore, India in the 1960s (a city greatly favored by the Brits during the Raj because of its then moderate climate), the word "dynamo" was regularly used for any device capable of generating electricity independently but not running out like a "battery". In its most basic form, there was the old-fashioned "bottle dynamo" used in bicycles to power the front light (see picture); the rotating 'lid' of the bottle kept turning due to its contact with the wheel but could be levered back when not required. Older cars, like the "Ambassador" (revamped 1958 Morris Oxford) had similar motion powered devices that powered the lights and other on board electrical appliances.
View attachment 112486
Might Moore's dynamo have been a similar device, using continuous movement from a wind or water mill - or something similar - from the farm to keep his transmitter powered?