Tag Archives: Space

Jul 18 2013

Find out about the BIS Kicksat Sprite Satellite

KickSat 437 MHz Sprite Satellite

KickSat 437 MHz Sprite Satellite

Andrew Vaudin of the British Interplanetary Society (BIS) will be giving a presentation on the BIS Kicksat Sprite satellite to the AMSAT-UK International Space Colloquium on Sunday, July 21.

The event takes place on Saturday/Sunday July 20-21 at the Holiday Inn, Guildford, GU2 7XZ, UK and is open to all.

KickSat Sprite satellites enable individuals to have their own satellite orbiting in space for very low cost, typically £200 ($300). Andrew Vaudin’s presentation should start at 9:50 AM on Sunday and is understood to include a demonstration.

Thanks to volunteers from the British Amateur Television Club (BATC) this presentation and the 17 others will be streamed live to the internet to a global audience. See https://amsat-uk.org/2013/07/18/webcast-of-international-space-colloquium/

Information about KickSat can be found at:
http://www.bis-space.com/category/bis-projects
http://www.kickstarter.com/projects/zacinaction/kicksat-your-personal-spacecraft-in-space

16 year-old UK student to work on KickSat Sprite
https://amsat-uk.org/2013/04/23/uk-student-to-work-on-kicksat/

The KickSat Sprites from both the BIS and London Hackspace are planned to launch on the SpaceX Falcon 9 ELaNa 5 / CRS 3 mission early in 2014.

A sample issue of the AMSAT-UK newsletter OSCAR News can be downloaded here.

Jul 17 2013

Ham Radio Workshop held at Satellite Event

Participants at the 2013 small satellite developer workshop

Some of the participants at the 2013 small satellite developer workshop

The National Institute of Amateur Radio was involved in the Small Satellite Developer Workshop held July 8-13, 2013 at the Indian Institute of Information Technology, in Kancheepuram.

The event was organized by Dhruva Space, a Bangalore based Small Satellite and High Altitude Ballooning Start-up, in association with the National Institute of Amateur Radio, Hyderabad.

Satellite experts with engineering models on display helped participants to grasp the challenges in designing and developing the subsystems of the small satellites.

To understand space based applications an Amateur Radio workshop was conducted to give participants a live example of usage of communications during disaster management.

Read the full report of the event in the Small Satellite Developer Workshop Newsletter

Dhruva Space http://dhruvaspace.com/outreach/amateur-radio/
https://www.facebook.com/DhruvaSpace

National Institute of Amateur Radio http://www.niar.org/ar.html
https://www.facebook.com/NationalInstituteOfAmateurRadio

Jul 12 2013

Signal strengths of the two ISS ham radio stations

International Space Station ISS with shuttle Endeavour 2011-05-23

Henk Hamoen PA3GUO used his AMSAT-UK FUNcube Dongle Software Defined Radio (FCD SDR) to show the variations in signal strength between the two amateur radio stations on-board the International Space Station (ISS).

Expedition 5 flight engineer Peggy Whitson KC5ZTD holds one of the two amateur radio antennas in the Unity node on the ISS. The antennas were installed during a spacewalk scheduled on August 22, 2002

Expedition 5 flight engineer Peggy Whitson KC5ZTD holds one of the two ISS amateur radio antennas installed on the Russian Service Module August 22, 2002

The amateur radio station in the Russian Service Module uses a Kenwood D700 transceiver which is understood be on its lowest power setting of 5 watts output and feeds a whip antenna on the Module. When acting as a packet radio digipeater it transmits data on 145.825 MHz.

A second amateur radio station in the European Space Agency (ESA) Columbus Module is usually used for voice communication. It comprises Ericsson handheld transceivers believed to be capable of 5 watts output to a whip antenna on the exterior of the module. When the radio hams on-board the ISS talk to other radio amateurs on Earth they transmit on 145.800 MHz.

Both stations use 5 kHz deviation FM (25 kHz channel spacing).

FUNcube Dongle Software Defined Radio

FUNcube Dongle Software Defined Radio

Henk PA3GUO writes:

FCD SDR recording of ARISS Italy school contact with astronauts onboard the ISS. Purpose is to show the signal strengths of the 2 transceivers onboard ISS: Ericsson Voice transceiver (left) and Kenwood data transceiver (right). At time 11:54z [2013-06-29] my antenna had to turn 180 degrees, signal is lost for a while. Remarkable: at the beginning voice TX signal is strong, even a bit stronger as data TX signal. At the end of the pass data keeps strong, voice fully drops into the noise. Seems the antenna of the Voice [ESA Columbus Module] transceiver is somewhat (more) shielded by the ISS exterior (e.g. solar panels).

29 June 2013, school contact Italy with International Space Station
Frequency: 145.800 + 145.825 MHz
Antenna: 6 elements + 15 meters Aircell coaxial cables
Receiver: FCD SDR + SSB pre-amp (mounted next to the FCD SDR)
Software: HDSDR (SDR receiver) + SatControlFCD (DK3WN freq control)

Watch ARISS Italy ISS SDR recording (speech and data spectrum)

Russian Service Module amateur radio antennas http://knts.tsniimash.ru/shadow/en/FAQ.aspx
Also see http://www.marexmg.org/hardware/antennas.html

Astronaut Radio Amateurs http://www.w5rrr.org/astros.html

PA3GUO website http://www.pa3guo.com/

Jul 9 2013

Radio Hams Kickstarter Plasma Thruster CubeSat

Artists impression of the CubeSat Ambipolar Thruster (CAT) satellite

Artists impression of the CubeSat Ambipolar Thruster (CAT) satellite

Radio amateurs Benjamin Longmier KF5KMP and James Cutler KF6RFX of the University of Michigan hope to raise $200,000 on Kickstarter for a CubeSat propulsion project.

The CubeSat Ambipolar Thruster (CAT) is a new plasma propulsion system which will push small spacecraft like CubeSats around in orbit or far beyond the Earth. They aim to use the CAT plasma thruster to propel a 5kg satellite into deep space at 1/1000th the cost of previous missions.

Just like a normal rocket that produces thrust from the burning and expansion of hot gases, CAT produces thrust from the expansion of a super-heated 350,000 °C plasma stream. Plasma is an ionized gas that can be accelerated to produce thrust (F=ma).  The force generated by this thruster will be very low (milli-newtons) but very efficient.  The engine will be turned on for long durations, accelerating the spacecraft to much higher velocities than a typical chemical rocket.

First, the propellant will be injected from its storage container into the plasma discharge chamber, a quartz bottle that distributes the gas and contains the plasma. The gas is turned into a plasma by a radio frequency antenna that surrounds the chamber and launches a plasma wave known as a “helicon.” The plasma is then launched out of the quartz bottle and guided by magnetic fields from extremely powerful permanent magnets. As the plasma escapes the CAT engine, this causes an equal and opposite thrust, pushing the satellite in the opposite direction. Unlike conventional rockets, almost any substance can be used as propellant for CAT – even liquid metals or water vapor!

Find out more about the project and watch the video on the Kickstarter site.

Kickstarter – CAT: A Thruster for Interplanetary CubeSats
http://www.kickstarter.com/projects/597141632/cat-a-thruster-for-interplanetary-cubesats

Facebook https://www.facebook.com/CubeSatAmbipolarThruster

Jun 28 2013

UK Radio Ham Plans Lunar CubeSat

Pocket Spacecraft

Pocket Spacecraft

UK radio amateur Michael Johnson M0MJJ is raising funds on Kickstarter for a CubeSat that aims to travel to the Moon.

Michael - Founder

Michael – Founder

The Pocket Spacecraft project hopes to raise at least £290,000 ($442,000) to fund a 3U (30x10x10cm) CubeSat. It will carry Pocket Spacecraft known as ‘Scouts’ to the Moon. A ‘Scout’ is a disk with flexible electronics, smaller than a CD, containing a transceiver, antenna and solar cells.

The CubeSat should release a batch of the wafer thin Scout satellites into Earth orbit and deploy another batch of the Scout satellites into Lunar orbit.

Melania - Microgravity Experiment Lead

Melania – Microgravity Experiment Lead

It is understood the mission plans to use the 435 MHz and 2400 MHz bands.

The Kickstarter page says “If you are, or would like to be, a radio amateur, we’ll show you how to communicate directly with your spacecraft in space when it is nearby using inexpensive UHF and S-band equipment. Communication at (cis-)lunar distances is more expensive (typically requiring 5-24m+ steerable dishes), but available to some clubs and enthusiasts.”

Watch the video and read more about the Pocket Spacecraft project at
http://www.kickstarter.com/projects/1677943140/send-your-own-pocket-spacecraft-on-a-mission-to-th

Pocket Spacecraft is believed to be the first UK satellite project to use Kickstarter. These USA satellite projects have already successfully raised money on Kickstarter:

Radio ham Zac Manchester KD2BHC used Kickstarter to raise $74,586 in donations to fund the development and deployment of 200 amateur radio KickSat sprite satellites expected to take place later this year.

Radio amateurs Jeroen Cappaert KK6BLQ and Joel Spark KK6ANB are on the team of the ham radio satellite project ArduSat. They managed to raise donations of $106,330 in just 30 days.

SkyCube which will transmit on 915 MHz in the 902-928 MHz amateur radio band raised $116,890.

Kickstarter is not just about raising large sums of money, for example Sandy Antunes used Kickstarter to raise $2,780 to buy a ham radio transceiver and antennas to create an amateur radio satellite ground station Calliope.

Jun 26 2013

ESA announce six CubeSats chosen for Phase 1

AAUSAT 4 CubeSat

AAUSAT 4 CubeSat

Six student teams and their supervisors have gathered at ESA’s ESTEC centre in The Netherlands for the kick-off of the new Fly Your Satellite! Programme under the ESA Education Office.

On June 26-28, ESA experts will introduce the objectives and present the activities to be performed during the first phase of the programme.

In January, ESA’s Education Office announced the ‘Fly Your Satellite!’ initiative. This is aimed at offering student teams the opportunity to become familiar with good engineering practice to build and perform satellite testing in order to increase the chances of a successful mission. The 2013 edition of the programme is however only focussing on testing selected university-built satellites that are already at an advanced stage of development.

Launch of Vega VV01

Launch of Vega VV01

‘Fly Your Satellite!’ builds on the success of the ‘CubeSats for the Vega Maiden Flight’ pilot programme. This culminated in 2012 with the launch of seven student-built CubeSats on the first flight of the new ESA Vega launcher.

The focus of the kick-off meeting will consist of coordinating the activity to be performed during the first phase of Fly Your Satellite! enabling the teams to complete the construction of their satellite. This will include extensive satellite testing in ambient conditions under the supervision of ESA specialists who will decide which satellites should participate in the next phase of the programme.

The second phase will see the satellites tested in the simulated conditions of outer space and in those the satellites will experience at launch. These will include vibration and thermal-vacuum tests.

ConSat-1 engineering model

ConSat-1 engineering model

The six CubeSats chosen for Phase 1 are:

Robusta-1B from France will validate a radiation test methodology for specific transistor components.

Oufti-1 from Belgium will demonstrate the D-STAR digital communication protocol and validate high-efficiency solar cells.

ConSat-1 from Canada will analyse radiation characteristics in the South-Atlantic Anomaly, and test technology payloads.

e-st@r-II from Italy will test an Active-Attitude Determination Control System.

AAUSAT4 from Denmark will test an improved version of student built AIS (Automated Identification System) receivers.

Politech.1 from Spain will carry a student built C-band communication system, a “GEODEYE” Earth Observation camera for academic purposes, and solar wind experiments.

Read the full ESA article at http://www.esa.int/Education/ESA_and_student_teams_kick-off_Fly_Your_Satellite

Fly Your Satellite! initiative http://www.esa.int/Education/Students_are_you_ready_to_fly_your_satellites_in_space