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NASA upgrading belligerent stations used for puncture ISS communications

A VHF receiver during NASA's Wallops Flight FAcility in Virginia. Photo Credit: NASA

A VHF receiver during NASA’s Wallops Flight Facility in Virginia used to promulgate with a ISS. Photo Credit: NASA

NASA is now upgrading belligerent stations employed in a backup complement for communicating with a International Space Station (ISS), a U.S. space group pronounced in an Apr 24, 2018, news release.

The primary means of communicating with a ISS is NASA’s Space Network, that especially relies on a constellation of Tracking and Data Relay Satellites in geostationary orbit. As a backup, a group also maintains a complement of belligerent stations that broadcast and accept really high magnitude (VHF) radio waves. In particular, a complement uses dual frequencies—VHF1 and VHF2.

An upgraded VHF antenna, that NASA says can support both VHF1 and VHF2 frequencies. Photo Credit: NASA

An upgraded VHF antenna, that NASA says can support both VHF1 and VHF2 frequencies. Photo Credit: NASA

According to NASA, VHF1 is used for puncture audio-only communications with a ISS while VHF2 is used to promulgate with Soyuz when out of operation of Russian VHF belligerent stations to safeguard communications during each circuit for both ISS and Soyuz spacecraft.

The upgrades, NASA said, urge electronic components and engage installing new program for tracking a hire and Soyuz. Moreover, a group pronounced new antennas will be commissioned during belligerent stations to concede for coexisting operations in both VHF1 and VHF2, that adds excess should one complement fail.

“Maintaining a accessibility of utility-like communications between a organisation and a belligerent is peerless to enabling goal success and ensuring organisation safety,” pronounced Mark Severance, tellurian spaceflight communications and tracking network director, in a NASA news release. “The NASA VHF network, in multiple with a VHF network operated by a Russian partners, does usually that.”

NASA has dual VHF belligerent stations—one during Wallops Island in Virginia, and another during NASA’s Armstrong Flight Research Center in California—to maximize coverage of a orbiting formidable while over North America, a group said. They are managed by NASA’s Goddard Space Flight Center. Russia’s VHF belligerent hire are located opposite a nation to concede for communications while a ISS and Soyuz is over Asia and Europe.

The space hire itself has dual VHF1 antennas to send and accept signals. These are located on a Russian Zvezda use procedure during a aft-end of a outpost. Each Soyuz spacecraft, meanwhile, has a singular VHF2 receiver on a aft-end of a use module.

“The purpose of [the belligerent station] upgrades is to safeguard a VHF belligerent stations sojourn a strong capability for backup and puncture communications,” Severance said. “The further of redundancy, a ‘belt and suspenders’ approach, is quite critical given that these systems would usually be employed due to disaster of a primary space hire communications complement or an puncture onboard a Soyuz.”

While a VHF complement allows for audio-only radio communications, however, a Space Network allows for much-higher information transmissions on a sequence of several hundred megabits per second. NASA pronounced this allows for a accumulation of data-consuming activities trimming from real-time high-definition video, information delivery for hundreds of scholarship experiments and live TV interviews with astronauts and cosmonauts.

The Space Network, that uses a TDRS spacecraft, is also managed by NASA’s Goddard Space Flight Center.

Video pleasantness of Smithsonian National Air and Space Museum



Derek Richardson has a grade in mass media, with an importance in contemporary journalism, from Washburn University in Topeka, Kansas. While during Washburn, he was a handling editor of a tyro run newspaper, a Washburn Review. He also has a blog about a International Space Station, called Orbital Velocity. He met with members of a SpaceFlight Insider group during a moody of a United Launch Alliance Atlas V 551 rocket with a MUOS-4 satellite. Richardson assimilated a group shortly thereafter.

His passion for space lighted when he watched Space Shuttle Discovery launch into space Oct. 29, 1998. Today, this passion has accelerated toward circuit and shows no signs of negligence down. After dabbling in math and engineering courses in college, he shortly satisfied his loyal job was communicating to others about space. Since fasten SpaceFlight Insider in 2015, Richardson has worked to boost a peculiarity of a content, eventually apropos a handling editor. @TheSpaceWriter

Article source: http://www.spaceflightinsider.com/missions/iss/nasa-upgrading-ground-stations-used-for-emergency-iss-communications/