Phobos Program -> GBIT DOCUMENT

Quick Description
Around the solar system and even outside of it, would be hundreds of thousands of operational Gbit satellites, enabling communication as well as internet access galaxy-wide. Gbit satellites use powerful optical lasers for data transmissions. Though one single Gbit satellite would likely have the capability of sending messages from X star system to Y star system, there would be a network of Gbit satellites in between these two star systems, enabling more reliable communication and redundancy.

Communication Instruments
Most communication satellites, such as the popular OneWeb constellation, use radio waves to transmit information across space and down to people on Earth. Gbit however, uses optical lasers (infrared light) to transmit information. To successfully transmit a message using such optical lasers, extreme precision must be achieved. For this reason, Gbit uses mirrors which can be tilted, to adjust the angle of the laser. Though this need for high precision is an obvious disadvantage of optical laser communication, it allows for, in contrast to radio waves, more data to be transmitted in a single downlink. So, though optical lasers don't move faster than radio waves in terms of actual velocity, it makes data transmission quite faster.

Microwave Transmitter
If a Gbit satellite is too distant from the Sun or is behind a planet/moon for a prolonged period of time, and its batteries will soon become depleted, a Gbit satellite that is actively charging its batteries via sunlight using its solar panels will use its built-in microwave transmitter to transmit microwaves to the dying Gbit satellite, so that it can use it as electricity. If the nearest Gbit satellite's batteries are also nearing depletion, and the star it's orbiting is obstructed in the satellite's current position, that satellite will be charged via a microwave transmission by another nearby Gbit satellite, where the now-charged satellite will charge the original satellite which was dying. It's like a chain. It would make it pretty difficult for a Gbit satellite to completely die. Because computers, especially advanced ones, are capable and are very good at handling multiple tasks at once, a Gbit satellite would be capable of transmitting data for the Gbit communications network, as well as charging a nearby low-battery Gbit satellite, both simultaneously. It may become ideal to have a separate type of Gbit satellites with larger solar panels and possibly radioisotope thermoelectric generators dedicated to keeping Gbit satellites charged in areas where the sun is temporarily obstructed, or in areas extremely far away from the Sun where the Gbit satellite may be consuming more energy than it is generating due to lack of sufficient sunlight for the solar panels.

Gbit Propulsion
The propulsion system of Gbit is nothing too fancy. While a decision has not yet been made on the exact details of this system, it is likely that Gbit would use gaseous Hydrogen and Oxygen as propellant.

Overall Benefits
The Gbit concept would enable countless human beings around the solar system and outside of it to access the internet and remain in constant communication with each other via these satellites. More technical details to come in the near future.

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