Walkie talkies are very commonly used for communication between two points. The half duplex channels allow only one radio to transmit at one point of time and the other would have to just listen. It is only one way communication that is possible.
Unlike telephones that you hold near your ears to hear the earphone, the walkie talkies are fitted with both earphone as well as speaker in the same unit.
The handheld units are similar to box radio but fitted with an antenna and both units get connected to radio stations that transmit and receive messages from a fixed point or range.
The credit of inventing the first radio transmitter and receiver goes to Motorola. Motorola created and coined the word 'walkie talkie' and the model was called Motorola SCR -300 that was based on frequency modulation. This version was a backpack mounted version.
Motorola had first introduced the commercial version of the first hand held compact and self contained device by name 'Handi Talkie' which was the precursor of the preset 'walkie talkie'. This unit though was not as good in performance as the 'walkie talkie', nevertheless was the first commercial device available for use in industry.
Today 'walkie talkie' is being used in various sectors including defense, security, public crowd management as well as various consumer, entertainment and recreational businesses too. You get kideei 'walkie talkie' too for children to play with. The models, features as well as the prices vary depending upon the usage, range and other factors.
With improved technology the 'walkie talkie' have also become sophisticated, more compact and user friendly. The commercial 'walkie talkie' tend to be a lot of studier, bigger sets with protective casing and operate on limited frequencies but with clarity. On the other hand the personal and individual sets tend to be sleeker, compact and light weight and can operate on many channels that are available within the band, but tend to lack in clarity.
'walkie talkie' for kids are available in the market . These are built relatively using low technology as compared to the others and operate within a range of few meters. They are pretty cheap and do not require a license to use.
Unlike telephones that you hold near your ears to hear the earphone, the walkie talkies are fitted with both earphone as well as speaker in the same unit.
The handheld units are similar to box radio but fitted with an antenna and both units get connected to radio stations that transmit and receive messages from a fixed point or range.
The credit of inventing the first radio transmitter and receiver goes to Motorola. Motorola created and coined the word 'walkie talkie' and the model was called Motorola SCR -300 that was based on frequency modulation. This version was a backpack mounted version.
Motorola had first introduced the commercial version of the first hand held compact and self contained device by name 'Handi Talkie' which was the precursor of the preset 'walkie talkie'. This unit though was not as good in performance as the 'walkie talkie', nevertheless was the first commercial device available for use in industry.
Today 'walkie talkie' is being used in various sectors including defense, security, public crowd management as well as various consumer, entertainment and recreational businesses too. You get kideei 'walkie talkie' too for children to play with. The models, features as well as the prices vary depending upon the usage, range and other factors.
With improved technology the 'walkie talkie' have also become sophisticated, more compact and user friendly. The commercial 'walkie talkie' tend to be a lot of studier, bigger sets with protective casing and operate on limited frequencies but with clarity. On the other hand the personal and individual sets tend to be sleeker, compact and light weight and can operate on many channels that are available within the band, but tend to lack in clarity.
'walkie talkie' for kids are available in the market . These are built relatively using low technology as compared to the others and operate within a range of few meters. They are pretty cheap and do not require a license to use.
About the Author:
Aside from walkie talkies, the author additionally regularly contributes articles on chemical disposal and asbestos disposal.
No comments:
Post a Comment