In 1945 portable mobile recording was still in its infancy. Audio engineers had to either schlep bulky and heavy disc cutting equipment or, as individual WNYC reporters did during their coverage of the Eisenhower Day Parade, carry a backpack-style battery operated short wave transmitter, complete with an antenna tail (as pictured). The reporter's signal was sent from the field to the WNYC mobile unit, and then to the the WNYC studios in the Municipal Building.
WNYC producer Dick Pack described the old days of the mobile unit in Variety: "The WNYC so-called mobile broadcasting unit was a small battered truck, the kind usually used by neighborhood stores for deliveries. Atop the slightly sloping roof of the truck was a tall antenna pole, and inside was the shortwave relay transmitter."
Joe Hassell, reporting from a make-shift perch in front of New York Public Library, had better luck with his signal, transmitting to the mobile unit van about 40 feet away --though he had to contend with the throngs of people eagerly awaiting General Eisenhower. Hassell's excitement as Ike comes into view is palpable as he describes the parade's progress down 5th Avenue.