The manufacturer can arrange the suitable and reasonable purchase activity of green laser pointer .
Six TDRS satellite launch in January 1993, the system has in orbit and the orbit backup capacity, this is the real completion of its networking process. Until five TDRS was launched in 1991 due to launch failures and satellite failure, the United States can only guarantee an intact satellite in orbit, although the meantime have had two satellites in orbit, but there is not enough orbit backup. Nevertheless, the satellite system has played a big role, who has more than 12 kinds of low-orbit spacecraft tracking and data relay services. In low-earth orbit spacecraft, especially when laissez-development needs of the space station, NASA plans to develop next-generation system called ?Advanced Tracking and Data Relay Satellite.? green laser pointer is a kind of electronic and technical product.
June 30, 2000, an Atlas 2A rocket in Cape Canaveral, successfully launched a data relay satellite the TDRS-H. The satellite is 3 satellite manufactured by Hughes (the TDRS-H, I and J) in the first one. The three satellites will be used to complement and enhance the existing TDRS system functions, and provide a wider bandwidth, FM is more flexible spatial data and image relay. Existing TDRS has provided nearly 20 years of communications services to the space shuttle and other spacecraft in orbit. TDRS will serve as the hub of the U.S. space communications. The second generation of TDRS satellites will have the dual capacity of data transmission and for the ground and in space to approximate a continuous communication link. All customers want to buy green laser pointer of the best quality and performance at the lowest price.
This new satellite will increase the series of TDRS satellite Ka-band communication capabilities, a data transfer rate up to 800Mb / s, and the radio signals are not growing. S-band phased array antenna can receive the signal of the five spacecraft, and at the same time a spacecraft transfer data. TDRS satellite with international compatibility, compatible with Japan and the ESA relay satellite Ka-band, in order to support each other in case of emergency. U.S. NASA programs were launched in September 2002 and March 2003, the TDRS-I and of the TDRS-J satellite. In order to ensure the ability to work, the U.S. has also established a ground support system. And then the laser technology of green laser pointer becomes the key point.
A white sand station configured three 18.3m antenna, used to the TDRS feed data; a 6m S-band antenna for the telemetry signal receiver in case of emergency and remote control command emission; a 4.5m Ku-band antenna and a Vice 3m S-band antenna used for the simulation of the user spacecraft. Invested in the spring of 1995, the second white sand stations, for the NASA space-based network to provide users with high-availability command and control capabilities and more advanced services. The TDRS system, the day-based network will be the International Space Station and other user spacecraft and ground support part of the main communication barrier. The second generation of satellites S, Ku, Ka-band single-site capacity has not changed, multiple accesses to return to the previous link is respectively 60 times and 30 times. And we can say the technology of green laser pointer is the core and essence for the manufacturer.
golden globes red carpet nfc championship game martin luther king jr quotes martin luther king jr i have a dream speech packers score ricky gervais napoleon dynamite
No comments:
Post a Comment
Note: Only a member of this blog may post a comment.