A.S. Popov's Onboard ReceiverRadio receiver
Designer: Alexander Popov
Made in: France
Dimensions: 325 × 320 × 285 mm
Materials: wood, metal
Tags: russiamakes, россияделаетсама, рдс, polytech, политех
Included in the set of onboard radio stations along with a Morse telegraph receiver, which provided recording of the received radiograms, a transmitter with the Ruhmkorff coil, atelegraph key, and the mercury breaker. This equipment was installed on Russian ships till 1906. During the tests of this receiver, A.S. Popov made the first proposal about using radio waves to determine direction of the ship with respect to the functioning transmitter of a radio beacon.