Quindar tones, most often referred to as the "beeps" that were heard during the American Apollo space missions, were a means by which remote transmitters on Earth were turned on and off so that the capsule communicator (CapCom) could communicate with the crews of the spacecraft. It was a means of in-band signaling to simulate the action of the push-to-talk and release-to-listen (often referred to as PTT) button commonly found on two-way radio systems and walkie-talkies.

With modern digital communication systems, Quindar tones are no longer necessary because a single communication line can simultaneously carry multiple communication channels in the form of data comprising both speech and signaling (the PTT signal), as well as video and telemetry.[citation needed] However, Quindar tones can still be heard in missions like Crew-1[2] when the astronauts communicate with mission control.


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Two common misconceptions surround Quindar tones. The first is that one tone came from Earth and the other from the transmitters used by the astronauts while in space. This confusion exists because many ground-to-space transmissions were initiated by Mission Control and responded to by the astronauts. In this sequence, the CapCom would press the PTT, which would send the intro tone, and then speak. When finished speaking, the CapCom would release the PTT, which would send the outro tone, and the astronauts would respond to Mission Control. Therefore, those transmissions would consist of a "beep" (PTT press) followed by Houston talking, then another "beep" (PTT release) and finally the voice of the astronauts.

Another misconception about Quindar tones is that they were designed to signal the end of a transmission, similar to a courtesy tone used on many half-duplex radio repeaters. Although the astronauts may have secondarily used the Quindar outro tone to know when the CAPCOM had started/stopped speaking,[1] no equivalent existed for Mission Control because the astronauts keyed their transmissions locally (inside the spacecraft) using either a PTT or VOX, neither of which required Quindar tones. Additionally, separate radio frequencies[3] allowed both Houston and the astronauts to talk simultaneously if they wished and thereby made a courtesy tone as a way to minimize the possibility of both of them speaking at the same time unnecessary.

However, it is important to pay attention to the type of file you download. iPhones use the M4R filetype for ringtones. Thankfully, NASA thought ahead and provided two copies of each ringtone: one in the MP3 format and another in the M4R format. To download the file, right-click the file name and save the link. It should default to saving as the M4R format. If you have trouble saving the file, check how to do it for your specific browser.

This is where this tutorial will split. We will first describe how to import ringtones to your iPhone using macOS (Catalina and newer). Afterward, we will describe how to do it using Windows and iTunes.

The file should sync automatically and be available on your device. Proceed to the Sounds and Haptics menu in the Settings app. Then go to any of the options listed under Sounds and Vibration Patterns. If the transfer was successful, your custom ringtone should show up at the top of the list.

You have now successfully added a custom ringtone to your iPhone! This method can be applied to any sound/audio you have. You just have to make sure that the audio is not longer than 40 seconds and is in the M4R format. Should you want to remove a ringtone from your iPhone, swipe to the left on the ringtone.

You have now added your own custom ringtone to your iPhone! While we may be partial to the sound of rockets tearing through the atmosphere, this method can be applied to any audio. If your audio source is an MP3 or something other than an M4R, you can use iTunes, or an online converter, to convert the MP3 file to an M4A file. Just change the file extension to M4R before trying to add the ringtone if you use iTunes!

This phone has followed us through the whole mission, its battery still holding almost the whole week (when not being called) even after 10 years. Its ringtone was literally engraved in our psyches, such that whenever it would ring, anywhere within earshot, the whole team would jump up and start looking around (until we remembered who was actually on call).

The ringtones on this website are in .mp3 format and is compatible with almost all mobile phones. Download ringtones and use them on Nokia Mobile phones, Samsung, Sony Ericsson phones, LG mobiles, Motorola phones etc...

I have had a question. I created Missions and having incorporated users but when I sign in with one imaginary user it refuses. It tells that the server may not be responding or we have encountered an Unexpected error and gives notification Peer to peer is inactive. I have A map offline enabled on portal with also an offline area created. After the first error, it shows also that No maps areas available while I have it. When I click on the mission you can use while connected, it says the mission map is unavailable while offline. What is the problem?What I can do? I think there is a certain misconnection on the server. The screenshots below shows the error of two following errors said above the second and third @DarronPustam @PatrickOBrien @PatrickOBrien1 @KerryRobinson @KerryRobinson1 @Anonymous User

Hi, did you solve this? I have a similar problem trying to acces the mission server from the created mission in mission manager. The federation of the mission server is ok in the portal and it is running in services.

27 January 2005 - Employees of THQ Wireless Inc. discovered today a new twist to a mysterious alien conspiracy plot code-named "Destroy All Humans!TM", first exposed by its parent company THQ Inc. (NASDAQ: THQI) in May of 2004. The new reports just released from THQ Wireless show that the Aliens' plot to attack users worldwide of the PlayStation2 computer entertainment system and Xbox videogame system from Microsoft has been extended to reach the rest of the world's population: mobile gamers! On top of this shocking new twist, sources close to the company have uncovered the Aliens' master plan to Destroy All Humans! by infiltrating Earth through the complete takeover of wireless entertainment via mobile games, ringtones and wallpapers.

This innocent-looking extraterrestrial is armed, dangerous and ready to Destroy All Humans! with 13 hostile missions and two gameplay modes in order to accomplish world domination through wireless devices. Aside from protecting their brain stems, citizens of Earth should also be warned that Crypto is expected to further infiltrate cell phones by replacing civilian ringtones with his evil laugh and trademark taunts in the form of authentic Alien voice ringers and wallpapers.

Earthlings can join in the hysteria by text messaging ALIEN to 69847(MYTHQ) to receive the latest invasion news, cheat codes, and opportunity to download exclusive content like ringtones and wallpapers.

This press release may contain "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements are based on current expectations, estimates and projections about the business of THQ Inc. and its subsidiaries (collectively referred to as "THQ"), including but not limited to the features related to the Destroy All Humans! Suite of wireless entertainment products, and are based upon management's beliefs and certain assumptions made by management. Such forward-looking statements are subject to risks and uncertainties that could cause actual results to differ materially from those expressed or implied by such forward looking statements, including, but not limited to economic, competitive and technological factors affecting the operations, markets, products, services and pricing of THQ. Unless otherwise required by law, THQ disclaims any obligation to update its view on any such risks or uncertainties or to revise or publicly release the results of any revision to these forward-looking statements. Readers should carefully review the risk factors and the information that could materially affect THQ's financial results, described in other documents that THQ files from time to time with the Securities and Exchange Commission, including its and Quarterly Reports on Form 10-Q and Annual Report on Form 10-K for the fiscal period ended March 31, 2004, and particularly the discussion of risk factors that may affect results of operations set forth therein. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this press release.

All good stuff. So what does AFRICOM choose as one of its first missions? A military operation against a guerrilla army that has eluded the Ugandan government for decades and has a long history of murdering innocent civilians in reprisal attacks. The US contributed intelligence (yes, really), advice and $1m in fuel. ff782bc1db

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