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Those beeps before and after each voice transmission are called Quindar tones. The reason for these tones was to, essentially, mute and unmute the dedicated phone lines that connected the transmission receiving stations to Mission Control in Houston. Because the phone lines were dedicated the noise between Houston and the capsule would have been constant, annoying and distracting the astronauts. Therefor the Quindar tones were built in.
Two tones were used in the Quindar system, named after its manufacturer, both being pure sine waves that were 250ms long. The "intro tone" was generated at 2,525 Hz and signaled the "key down" keypress of the PTT button. The "outro tone" was slightly lower at 2,475 Hz and signaled the release of the PTT button. The tones were generated by special equipment located at Mission Control, and they were decoded by detectors located at the various tracking stations.
What else can I help you with?
WHAT was the beep on NASA Apollo radio for?
The Quindar tones were there because of the button the astronauts had to press made that noise. The noise was there just to indicate that the microphone was being turned on/ off. And Hustons microphone didnt require a beep as it was an open line
How many attempts was there to land on the moon before Apollo 11?
Zero. Apollo 11 was the first attempt to land men on the moon.
How were messages sent from Apollo 11?
Messages from Apollo 11 were sent using radio signals between the spacecraft and Earth-based tracking stations. The tracking stations picked up the signals and relayed them to mission control in Houston. These messages included voice communications, telemetry data, and video transmissions.
What is the space shuttle from Apollo 11 called?
There was no space shuttle on Apollo 11
What was the year when Apollo 11 landed?
Apollo 11 landed on the moon in the year 1969.
What is 2-11 beep?
2-11 beep = -9
WHAT was the beep on NASA Apollo radio for?
The Quindar tones were there because of the button the astronauts had to press made that noise. The noise was there just to indicate that the microphone was being turned on/ off. And Hustons microphone didnt require a beep as it was an open line
What was the Apollo 11 mission called?
Apollo 11
Is Apollo 11 haunted?
No Apollo 11 was not haunted.
How many attempts was there to land on the moon before Apollo 11?
Zero. Apollo 11 was the first attempt to land men on the moon.
Why was Apollo 11 called Apollo 11?
Apollo 11 was named after the Apollo program, which aimed to land a person on the Moon and bring them safely back to Earth. The number 11 designates that it was the eleventh mission in the Apollo program's series of lunar missions.
Who launched Apollo 11?
N.A.S.A launched Apollo 11.
When was the Apollo 11 used?
The Apollo 11 was launched in 1969.
What was Apollo 11's spaceship named?
Apollo 11
Of the Apollo space missions 11 through 17 which ones landed on the moon?
Apollo 11 Apollo 12 Apollo 14 Apollo 15 Apollo 16 and Apollo 17
How were messages sent from Apollo 11?
Messages from Apollo 11 were sent using radio signals between the spacecraft and Earth-based tracking stations. The tracking stations picked up the signals and relayed them to mission control in Houston. These messages included voice communications, telemetry data, and video transmissions.
What is the name of the pilot of the Apollo 11?
The commander of Apollo 11 was Neil Armstrong, the command pilot of Apollo 11 was Michael Colins. the Lunar module pilot of Apollo 11 was Edwin Aldrin.
