Walkie-talkie

A walkie-talkie is a hand held  two way radio receiver/transmitter or transceiver. It was developed in the  Second World War. 

Radio engineer Alfred J. Gross worked on the early technology behind the walkie-talkie between 1934 and 1941. During the war it was developed by Donald L. Hings and engineering teams at Motorola led by  Henryk Magnuski.The history of  the Walkie talkie

Typical walkie-talkies today are phone sized and have a push-to-talk button. Walkie-talkies are used for various reasons, in the military, for amateur radio, and for personal use.

 History 
The first walkie-talkie was so large it had to be carried in a backpack, and was called Motorola SCR-300. Motorola also made other Walkie-talkies during World War Two.Radio set SCR-300  A War Department technical manual TM 11-242  During World War Two The first hand-held Walkie-talkies were also developed by Motorola during WWII. 

 Development 
The idea of walkie-talkies did not get much interest until the war started in 1939. After a few years, the Motorola team had improved them so that the army could use them. There were also vehicle and tank versions.Donald L. Hings, inventor & telecommunications pioneer
Walkie Talkie  The British, Germans, and Americans all had their own versions. 

Motorola also produced the hand-held AM SCR-536 radio during World War II, and it was called the "handie-talkie" (HT).  The terms are often confused today, but the original walkie talkie referred to the back mounted model, while the handie-talkie was the device which could be held entirely in the hand (but had vastly reduced range).

 Uses 

Walkie-talkies are widely used in many settings, including business, police force, military, and recreation. 

References

Category:Radio
Category:Messaging
Category:Telecommunications