Police Inaugurate Two-Way Radio

THE first two-way police radio equipment in the United States is now in operation at Piedmont, a fashionable suburb of Oakland, California. Permission for this efficient new form of communication between police officers in the field and headquarters has been granted by the federal radio commission. Read the rest of this entry »

Portable Radios for U. S. Cavalry
THE latest in portable radio receivers and transmitters has been developed by Signal Corps engineers for use by the U. S. Cavalry. The antenna is strung on a short mast, while the instruments are carried on the saddle, as illustrated below.

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The Amateur in the Making

By Walter Burnett

Illustrations by Kneeland L. Green.

WHEN Marconi completed experiments a number of years ago, which made wireless telegraphy practicable, an unbelieving world sat up and gasped.

The wonder of his achievement lingered in the minds of many for a few days and then died. In certain young men, however, it created the spark of ambition, which flared up into an irresistible desire to enter into this new and practically unknown field. As a result nearly every city in the country boasts (or tolerates) its wireless amateurs. Read the rest of this entry »

Super Radio Set Will Tune In Any Of World’s Programs

JUST about the largest radio receiving set to be made so far is the latest creation of E. H. Scott. Night or day it will tune in any broadcasting station in the entire world

The receiver has forty tubes, and there are five loud speakers in combination to give the best reproduction possible on all tone frequencies. Read the rest of this entry »

The mystery constructor is wearing a mask? Huh?

World’s Smallest Complete Radio Broadcasting Station

THE City of Brotherly Love now boasts of the world’s smallest radio broadcasting station. Not much different in size and appearance from a household refrigerator, this station is accurate in all respects, operates entirely under its own power, and has a sending radius of two hundred feet with its 1/400th of a watt power plant. Its call letters are WEE, and it is owned and operated by the Tiny Broadcasting Company, operating on a frequency of 1,300 kilocycles.

The transmitter was designed and built by the Mystery announcer of WPEN, who recently won the title of the most popular radio announcer in a nation-wide contest.

Antenna Now a Loud Speaker

RADIO “freaks” or hearing of programs without apparatus, are reported occasionally; but are usually hard to verify. However, an occurrence at the Hilversum (Holland) station, reported by no less an authority than Dr. Balthasar van der Pol, in a letter to Nature, is well authenticated by competent observation. Read the rest of this entry »

Radiophone to Rid Siberia of Wolves

RADIO telephones placed at intervals throughout the wolf-infested regions of Siberia so that the whereabouts of these dangerous pests can be easily discovered is the latest means proposed by Soviet officials to rid the vast plains of the country of the wolf menace, long an obstacle to settlement and safe travel. Read the rest of this entry »

Fishermen Now Radiophone to Families

DEEP sea fishermen spend a large portion of their lives isolated on the ocean, out of touch with land for days and days on end. A new two way radio telephone, especially designed, for installation in fishing boats has now broken down this barrier of space, permitting the sailors to speak to their friends and families ashore.

How the combined receiver and transmitter operates is illustrated in the artist’s drawing above. No trained radio man is necessary to put through a call. The fisherman simply presses a button and connects up with a land station, which hooks him up to the city telephone system. Engineers are planning on installing many of these instruments on American fishing boats cruising the East coast areas.

Midget Radio, left, is tuned in by an official guide at the Victoria and Albert Museum in London where it was one of 6,000 items in the “Britain Can Make It” Exhibition. It costs about $70.

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Roll Not The Barrel

The recreation room in your home will be enhanced by this out of the ordinary, record changer cabinet.

By Loren Collins

THIS is an unusual project requiring a minimum of material and only the simplest hand tools. When completed it will not only be an attractive addition to your den or rumpus room but a serviceable record player, rivaling many large consoles in tonal quality. Using the unbreakable 45 rpm 7-in. disks that come in a wide choice of classical and popular selections, it will play ten selections, or from 30 to 50 minutes of music with one loading. Read the rest of this entry »

Golf Widows will be able to check up on their husbands now with this new application of the portable radio receiving set. The one being used here is a forerunner of the set to be manufactured.

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CHINA’S MILLIONS Twist the DIALS

The Orient opens its heart to radio and in the footsteps of the American listening public, succumbs to the appeal of native amateur hour artists.

by Robert H. Berkov

AGE-OLD China, shaking loose from centuries of tradition, has taken the radio to its heart, and loud speaker entertainment has become one of the most important influences in a nation which is fast adopting the modernism of the west in even the most outlying sections.

From bustling Shanghai and fast-growing Nanking near the eastern coast, to Chengtu in remote Szechuan province, from the far reaches of Hopei province in the north to Yunnan in the extreme southwest, countless receivers blare forth a cacophony of western and Chinese music, announcements, speeches. Read the rest of this entry »