answersLogoWhite

0


Best Answer

i dont have idea my friend

User Avatar

Wiki User

14y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Who invented the spark-gap transmitter?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

When was the telephone transmitter invented?

1819


What contribution did Eli Whitney make?

She invented the radiance transmitter telescope.


What scientific contribution did Eli Whitney make?

She invented the radiance transmitter telescope.


What was the world like before the radio was invented?

The very first radios were "sparkgap radios" (e.g. Marconi's radio). They could only be used for radio telegraphy (i.e. sending telegrams). The transmitter was a high voltage sparkgap connected to a long antenna wire. A message was sent by applying a high voltage across the sparkgap each time the operator pressed the telegraph key, generating a spark and causing the antenna wire to radiate very wideband electromagnetic noise. The receiver was a low voltage sparkgap connected to a long antenna wire. When the antenna picked up any electromagnetic noise the sparkgap would spark while that noise was being picked up. However it was not practical to look for this spark, so a device called a "coherer" was used to detect the spark and generate a signal to drive a conventional telegraph sounder. The coherer was a glass tube full of iron filings with an electrode at each end touching the filings, usually the filings made poor contact and the resistance of the coherer was high; but when the voltage across the sparkgap became high enough to spark as the coherer was across that sparkgap this voltage caused the filings to cohere and the resistance of the coherer to became low, energizing the telegraph sounder. Unfortunately the iron filings in the coherer stayed stuck together causing the resistance to stay low, so a small electromagnetically operated hammer tapped the coherer each time it activated to knock the filings apart and reset it to its normal high resistance state, deenergizing the telegraph sounder. The biggest problem with such radios was the wideband electromagnetic noise they used did not permit more than one station to transmit at a time, if more than one station transmitted at the same time the result was an unintelligible garble!


How has Thomas Edison accomplishments contributed to your society?

He invented the light bulb, telephone transmitter, and fluoroscope. :)


How many radios were used when they were first invented?

You need at least two radios, one transmitter and one receiver to be able to say that you've invented radio.


Who is the father of electronics communication?

For wireless communication, undoubtedly Guglielmo Marconi, who invented the spark gap transmitter. Then for telegraphy, it has to be Samuel Morse. The telephone was invented by Alexander Graham Bell.


What year was the aerial invented?

In 1888 Heinrich Hertz created a spark gap transmitter and a receiver sporting a loop antenna.


Who invented the mircrophone?

On March 4, 1877 German-American inventor Emile Berliner, working in New York City, invented the microphone. It was first used as a telephone speech transmitter.


What is flow transmitter?

pressure transmitter


What is the difference between transmitter and smart transmitter?

They are at different levels. The transmitter will help you to get started by the smart transmitter will help you with more advanced problems.


Where is the transmitter?

transmitter is a device that creates the message that is to be transmitted.