![nasa - Why were the two Quindar tones so close in frequency and not apodized? - Space Exploration Stack Exchange nasa - Why were the two Quindar tones so close in frequency and not apodized? - Space Exploration Stack Exchange](https://i.stack.imgur.com/NIK4s.png)
nasa - Why were the two Quindar tones so close in frequency and not apodized? - Space Exploration Stack Exchange
Quindar tones!!!🤖🤖 Quindar tones, most often referred to as the "beeps" that were heard during the American Apollo space missions, were a means by which... | By Speaking_universe12 | Facebook
![Quindar Tones were a means of in-band signaling for remote transmitted... | Download Scientific Diagram Quindar Tones were a means of in-band signaling for remote transmitted... | Download Scientific Diagram](https://www.researchgate.net/profile/Abhijeet-Sangwan-2/publication/246547023/figure/fig2/AS:669482976563208@1536628588767/Quindar-Tones-were-a-means-of-in-band-signaling-for-remote-transmitted-keying-and-release_Q640.jpg)
Quindar Tones were a means of in-band signaling for remote transmitted... | Download Scientific Diagram
![A pair of musicians uses Quindar tones to create a musical tribute to space travel | The World from PRX A pair of musicians uses Quindar tones to create a musical tribute to space travel | The World from PRX](https://media.pri.org/s3fs-public/styles/story_main/public/story/images/Quindar-Brackbill4.jpg?itok=rLir4Lnn)