This is the alcove inside the house where the radio equipment was installed.

"Likewise Marj (Saint) had a full-time job to perform in addition to rearing her family which eventually included Kathy, Stevie, and Phil. Whenever the MAF plane was in the air, Marj stood by at the short-wave radio set and checked its progress. To keep her hands free for an enormous bookkeeping job, as well as other paperwork, Nate devised a foot pedal that would open and close the transmitter microphone."

"An hour and fifteen minutes after the brutal attack on Palm Beach (the code name for the sand bar on the Curaray river where the five missionaries set up camp. -JH) the first fleeting hint of what had happened reached the wives waiting by radios back at their various mission stations. At four-thirty, the time of the promised contact, the radio receivers were silent."

From "Jungle Pilot" by Russell Hitt, a biography of Nate Saint.