. Bell telephone magazine . uickly into groups on the beach andthen head inland on their invasionmissions. With each attacking forceis at least one FM radio, and each setis adjusted to a different frequencyto eliminate interference. The groups of vehicles are soonwidely scattered, but the plan of at-tack—timed to the split second—iscarried out on schedule. As objec-tives are readied and won, command- Radio Telephones Guide the Blitz Buggies S3 ing officers make their reports and re-ceive further orders by radio. Focusof all these messages is Mary-M—which may be the code name for thesmall radio
. Bell telephone magazine . uickly into groups on the beach andthen head inland on their invasionmissions. With each attacking forceis at least one FM radio, and each setis adjusted to a different frequencyto eliminate interference. The groups of vehicles are soonwidely scattered, but the plan of at-tack—timed to the split second—iscarried out on schedule. As objec-tives are readied and won, command- Radio Telephones Guide the Blitz Buggies S3 ing officers make their reports and re-ceive further orders by radio. Focusof all these messages is Mary-M—which may be the code name for thesmall radio station in the car at thebeach. Using his FM transmitter-receiver as a relay station, the oper-ator receives messages from the vari- As the invasion gathers momentum,messages come thick and fast, but theoperator is able to shuttle them backand forth without losing a second ofvaluable time. His new combat radioequipment requires no manual tuningor hairline adjustments. It is oper-ated by pushing buttons—not by turn-. PHOIO BY U. S. ARMY SIGNAL COSFS Some of the radio telephone equipment which provides this American light tankscommunications is faintly visible in the interior behind the driver ous forces inland and re-transmitsthem to invasion headquarters in aship off-shore. When a group runsinto unexpected opposition, Mary-M relays the information to othersin the vicinity. When a landing beachis cleared, the signal is passed on byradio to the landing boats awaitingtheir turn. ing dials and knobs—and it worksalmost automatically after the poweris turned on. The set he is using isthe brain child of engineers at theBell Telephone Laboratories, de-signed by them in cooperation withthe U. S. Army Signal Corps, andmanufactured by the Western Elec-tric Company. 54 Bell Telephone Magazine SPRING This radio equipment received itsbaptism under fire as described aboveat the Allied invasion of North Af-rica. Since that time it has been em-ploved in the same way at our land-ings
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