Share this project

Done

Share this project

Done
RATS is a wireless communication system that allows people to send encrypted messages without internet
RATS is a wireless communication system that allows people to send encrypted messages without internet
RATS is a wireless communication system that allows people to send encrypted messages without internet
63 backers pledged SEK 55,476 to help bring this project to life.

About

RATS - Chat and send files without internet project video thumbnail
Replay with sound
Play with
sound

RATS - Chat and send files without internet

SEK 55,476

63

What is RATS?

RAdio Transceiver System allows you to send encrypted messages and small files between two or more computers running Windows, Linux or Mac OS X without using Internet. Simply plug in the USB cable and start the RATS software and you are ready to communicate with another RATS unit.

How do I use the software?

How does the encryption work?

If you have entered an encryption password, then all your messages and files will be encrypted with AES-256. RATS also uses a randomized salt, which means that all encrypted data will generate unique encrypted strings. For example if you send exactly the same message 100 times with the same encryption password, the encrypted data will always be unique, even though it contains the exact same message.

Frequency List

The idea behind the frequency list is to allow users to download the latest frequency list (frequencies.xml) that contains a list of which frequencies you can use in a specific country. This list will be updated and maintained by the users of RATS with an easy-to-use interface. 

Specifications

Frequency: 420-452Mhz

Max Transmitter Power Output: 100mW | 20dBm

Modulation: FSK

Transfer speed: 2.40KB / sec

Information transfer speed: > 1KB / sec

Range: approximately 1 km with 100mW TPO in an urban area with the standard antenna. With better antennas and less obstacles in the path you can reach 5-6km.

When to use RATS?

RATS is suitable for encrypted short-range communication when you want to be independent of internet and / or mobile networks. It is also a suitable option to use between buildings that have no prior communication solution. Another big plus with RATS is that communication can be maintained even if the power goes out as long as you have power in your laptop.

Background

December 2013, just a month before our first rocket launch and we had no suitable communication system for mission control. The software and hardware I developed during that month became the basis for RATS.

Launch of an Lyfta-XS rocket (2015-06-13)
Launch of an Lyfta-XS rocket (2015-06-13)

Risks and challenges

Small-scale production of RATS devices has already started, so the biggest risk would be that my electronics suppliers are unable to deliver all of the components if demand proves to be higher than estimated.

Learn about accountability on Kickstarter

Questions about this project? Check out the FAQ

Support

  1. Select this reward

    Pledge SEK 5 or more About $1

    | ≈0.6USD |

    Thank you for your support!
    You will get access to all updates on kickstarter

    Less
    Estimated delivery
    8 backers
    SEK
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  2. Select this reward

    Pledge SEK 50 or more About $6

    | ≈6USD |

    You will receive a secret gift that will fly in an NRC-built Lyfta-XS rocket in January. The launch will also be live streamed.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    1 backer
    SEK
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  3. Select this reward

    Pledge SEK 350 or more About $42

    | ≈42USD |

    You will receive one RATS unit.
    + The secret rocket gift.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    1 backer
    SEK
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  4. Select this reward

    Pledge SEK 615 or more About $73

    | ≈73USD |

    You will receive two RATS units, one for you and one for your friend.
    + The secret rocket gift.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    32 backers
    SEK
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  5. Select this reward

    Pledge SEK 922 or more About $110

    | ≈110USD |

    You will receive three RATS units!
    + The secret rocket gift.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    8 backers
    SEK
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  6. Select this reward

    Pledge SEK 1,210 or more About $144

    | ≈144USD |

    You will receive four RATS units!
    + The secret rocket gift.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    8 backers
    SEK
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  7. Select this reward

    Pledge SEK 2,420 or more About $288

    | ≈287USD |

    You will receive four RATS devices!
    + The secret rocket gift.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    5 backers
    SEK
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.

Funding period

- (36 days)