After packing the plug in more securely, and sending the Bathysphere down for another test dive in which the plug held, Beebe and Barton set off for their radio dive on September 22. The first part of the radio broadcast was conducted from on board the Freedom, describing Beebe and Barton preparing for their dive, while the second part would be relayed up the phone line from the sphere as Beebe and Barton descended in it. The ocean during this dive was rougher than it had been during any of their previous dives, and as the Freedom rocked on the surface, its motion was transmitted down the steel cable, causing the Bathysphere to swing from side to side like a pendulum. As the Bathysphere descended, Barton succumbed to seasickness and vomited inside it. However, the first half of the radio transmission had already been broadcast, and neither Beebe nor Barton wished to cancel its second half, so they continued their descent.
