Which Major Discoveries led to the Invention of the Two way radio

hey! found this website and had to share with all of you, hope you enjoy it

The modern two-way radio, which is a direct descendent of the WW2-era The radio, first became recognizable in the years just before the outbreak of World War 2. Its origins are an interesting story in their own right (but I’ll condense it here).

Three names are usually mentioned with regards to the invention of the walkie-talkie…

The first is Canadian inventor Donald Hings (1907 – 2004), who invented an early version of the technology back in 1937 (although it wasn’t widely acknowledged or used). Then, there’s American inventor Al Gross (1918 – 2000), who patented the name ‘walkie-talkie’ for his own invention a year later in ’38. Because of the ubiquity of the name, Gross became the best known ‘inventor’ of the technology at the time, even though it had technically existed for 12 months beforehand. However, this isn’t to detract from Gross’ claim, because his version of the walkie-talkie was actually quite different from Hings’ (despite operating on the same essential principles).

Then, there’s Dan Noble (1901 – 1980), a Motorola employee who, although he definitely did not invent the technology, certainly did lead the team that created the widely used WW2-era walkie-talkies. Hings’ version of the technology wasn’t used by the military until 1942, which led to Dan Noble being credited with the invention.

So, make of that mess what you will…

Now, to go back further (and get to the meat of your question), here is a list of discoveries that led to the creation of the two-way radio.

James Clark Maxwell (1831-1879), a mathematical physicist (and one of a seemingly endless line of genius Scotsmen) demonstrated that electromagnetic waves could propagate in free space in his 1865 paper ‘A Dynamical Theory of the Electromagnetic Field’ (of which the most famous fan was Albert Einstein). This led German physicist Heinrich Hertz (1857 – 1894) to build on Maxwell’s pioneering work by conclusively proving the existence of electromagnetic waves in 1887.

After that, Serbian-American inventor, physicist, vegetarian and absolute genius Nikola Tesla (1856 – 1943) demonstrated the transmission of radio frequency energy in 1892. After that, Italian inventor Guglielmo Marconi (1874 – 1937) built a wireless system capable of transmitting signals over unprecedented distances in 1895 – which is pretty much the birth of radio.

This was an important area of study at the time; the first wireless telephone conversation took place in 1880 and was made by Alexander Graham Bell (1847 – 1922), who was another Scot, incidentally. A lot of people were working on similar technology, so it would not have been unlike the ‘space race’ of the 50’s and 60’s at the time.

Marconi went about taking over pretty much all business related to the invention of the 2 Way Radio (which was, eventually, credited solely to him) and, by 1907, he had established the first commercial transatlantic radio service (and also pretty much screwed Tesla out of any/all royalties he would have been owed. Nice).

Thanks to the work of Julio Cervera Baviera (1854 – 1929) the Spanish army became the first to use radio for military purposes (at least, as far as I’m aware, anyway) in the early 1900’s.

Canadian inventor Reginald Fessenden (1866 – 1932) (who also helped to develop sonar and TV, incidentally), invented AM radio (no, not the ‘Breakfast Show’ –it means that more than one station can broadcast signals) when, on Christmas Eve 1906, he played some violin and read from the Bible.

Eventually, all ships were equipped with radio transmission capability, with Marconi owning a total monopoly over ship-to-shore communication. Ship-to-shore contact became a subject of increased awareness and importance following the Titanic disaster of 1912 and radios began to be seen even more as a crucial safety measure in all areas of industry as a result. Look up the 1913 ‘International Convention for the Safety of Life at Sea’ (it has a Wikipedia page, I just checked) for more info.

Skipping forward a bit, now. Throughout the 1930’s, there were a ton of minor (and major) improvements made to the technology, more than a few made by Marconi and his engineers. Some really clever people made their mark on the fledgling technology here, but if I mention them all, we’ll never get to the end.

Oh, by the way, FM radio was subsequently invented by American electrical engineer Edwin Armstrong (1890 – 1954) in 1933.

By the late 30’s, Hings comes into the picture, as does the rising spectre of a terrifyingly advanced Nazi Germany. The race was on to have the best equipped armies out there fighting the Axis powers and the allies wisely put a huge amount of manpower into the development of portable radio communication. It was a decision which led directly to the rapid co-opting of Hings and Gross’ work, as well as the later improvements made by Noble.

This is a long and fascinating story (about which many books have been written), but, as a ‘potted history’ of sorts, I hope that answers your question.

Radio Remote Control a Powerful Frequency Catcher

With a lot information on the web about communication device stroke’s it is hard to discover the best and largely honest articles. here is a piece of writing from a reputable blog that i believe as true, do not quote me on it but please read and enjoy

In these days, radio remote controls are very much important for different machines.

No doubt these are made with high electromagnetic waves of verifying frequencies. Now we are really developed by the modern technology. We are using so many apparatus with the help of modern technology. Without these techniques we can’t do any thing. And we make these entire things to make our life easier and smooth.

These machines can work within a second. Actually these are high frequency based remotes that’s why it works smoothly in any where. Now we are living in the era of information technology. We can communicate with anyone without any trouble. Now communication becomes so easy that we can get connected with our near and dear ones very easily.

All these have made possible as of the new innovation of human being.

The communication process can be possible with short and long distance. Now with the help of technology we are using efficient radio remote control. Apart from that now we are also using two way connections like Walkie Talkie waves, cellular phones, mobile phones etc.

So these are such products through which we can communicate with the people as well as any machines very easily.

The radio remote controls can work out with the signals and can obey the command when it is working properly. A wonderful aspect of this system is that, it can send signals from a long distance. Besides, they can catch the tiniest signal. The Bluetooth technology is always interconnected with the television, home theater, mobile phones computer etc.

As well as the remote can create a wireless community of your gadgets that literally speaks to each other.

There are some example such as alarm and security work at 40 megahertz, the mobile phones between 824 to 849 megahertz and sir traffic radar at anywhere 960 to 1215 megahertz. But these high frequency remote controls send radio waves in a way then their unique digital address is also sent fixed in the waves, which the target receivers can identify and accepts.

Another thing is that the industrial wirelesses are used to maintain for the industrial machines. Automatically they are more powerful than the traditional remote. The industrial wireless is made with frequency hoping technology; as a result during any small signal loss, it can shut down the total machine within a very short period of time.

It confirms you the safety of the costly machines. And these are developed with powerful transmitter which can catch the tiniest of signals can work within a huge range also.

This smartest and fastest and smoothest technology is already being used in engineering fields as wireless remote controls. In the future may be we can see that the radio remote controls will play a great role in maintaining our daily life.

Here is more information regarding website stop by the page.