Show HApPENINGS HAP IN RADIO FLOYD LOYD A Editor PLANE PILOT USES RADIO IN NEW TESTS Carries Way Con Conversation I While In Air DA 0 O Jan n J n a 9 The The Mlp ot 01 a powerful radio broadcasting and land lanI telephone line lines haa ha been enlisted at McCook cCook l Field here to carry crry a way two con con con- con cration over a long be- be between be between tween lIeen a pilot and both his 1115 ter- ter terminal ter minal This is the first time airplane and ground communication hAS been attempted on such uch uch ambitious ft A scale cale The experiment wa vas 50 0 successful that Captain W S Mur Mur- Murphy Murphy dur- dur phy who conducted It from rom the theall theair all air predicts the probability of an attempt In the near neRr future to talk 11 ii tho the way across the continent between airplane and land sla sta- sta sta lons lions Heretofore pilots have base been di dl directed In their flights by signals from land stations not far tar below Experiments on this phase of radio have been going on In this coun- coun I zy y since 1918 But now nolY a way two-way long distance distance dis- dis tance conversation con between an air air- airplane more points plane and two or even on the ground with only a weak powered transmitter on the plane marks a 0 decided step Elep In the pros of military and commercial aviation lalion l say nay officials here this BROADCASTERS BRO AID An The experiment was undertaken by Captain Captan Murphy with sith the help of Station ot of o the Crosley Radio Corporation at Cincinnati The conversation took place be- be be Captain Murphy Murphys Murphy's piano when ten miles from Cincinnati through the apparatus of at Harrison 0 30 miles away and thence by land line to the Crosley offices at Cincinnati At the same time that Murphy durphy a a as talking to Cincinnati In this wa with conversation going back nd forth he ho was able to keep In way communication with his way two at the McCook Field radio 64 54 miles away aay This This- he worked on two wave wave- wave 40 meters to M Cook field and 4 43 3 through with with- without without without out experiencing Interference Since his first test flight Mur- Mur rh Mur-rh Ih has haa made malle a few more experimental experimental mental flights lights for tor further nce flee nce Hes He's arranging for tor stillmore more elaborate experiments and Is planning to carr carry on a way two two conversation through LV and a 11 along along long distance wire to St Louis TYPE TYlE Of OP APPARATUS Ill Tue principle In Involved in this Murphy of- of of nw rw experiment says rs r m the pilot of an airplane In- In Instant instant siant in-siant stant communication with either or of his terminal well as with Intermediate stations In his experiments Murphy uses use new standard observation air air- plano piano Diane broadcasting set of the mas- mas r r oscillator type operating with three watt 50 tube tubes and c capable pable ot or being used with telephone lines linesa ee a either continuous or Interrupt Interrupt- Interrupted ed d continuous wave The airplane set sot delivers two neres Into the antenna tho th 6 kilowatt ground station put puts o O amperes ampere Into Its antenna The plane piano employs a foot antenna which Is paid out from a reel Lt t the bottom C C of Mc- Mc McCook McCook Mc McCook Cook Field has hu been piloting Mur Mur- Murphy's Mur- Mur Murphy's Murphy's phys phy's plane plane on these tests and has been able to hear bear conversation al- al although although al although though the tho radio officer alone could transmit |