Ofcom RF spectrum map

Ofcom-logo-col-tOfcom’s Interactive Spectrum Map is an easy way to browse and search how different spectrum bands are used in the United Kingdom.Use the dashboard to find out how spectrum is being used, by sector and by product/application. The map covers spectrum from 8.3 kHz to 275 GHz.

http://www.ofcom.org.uk/static/spectrum/map.html

Ham Radio Earth-Moon-Earth Art Event on Google+ Hangout

PI9CAM Dwingeloo 25 meter dish antenna

PI9CAM Dwingeloo 25 meter dish antenna

OPTICKS is a live radio transmission performance between the Earth and the Moon during which images are sent to the Moon and back as radio signals using the MMSSTV Slow San TV software developed by Makoto Mori JE3HHT. A live Google+ hangout is taking place on May 1 at 2000 UT. A Reddit AMA will precede the Hangout at 1500 UT.

The project has been realized by visual artist Daniela de Paulis (IT/NL) in collaboration with Jan van Muijlwijk PA3FXB and the CAMRAS radio amateurs association based at Dwingeloo radio telescope (NL). Each live performance is made possible thanks to the collaboration of radio amateurs Howard Ling G4CCH (UK), Bruce Halász PY2BS (Brazil) and Daniel Gautschi HB9CRQ (CH).

The live hangout will feature a “touch” and bounce of Humans in Space Youth Art Competition artwork off the Moon using OPTICKS radio wave technology. Guests and remote participants will discuss the significance of the artwork and the performance and explore the impact of past, present, and future human presence on the Moon.

Guests
– Andrew Chaikin is the author of Man on the Moon and From Earth to the Moon.
– Wendell Mendell is a retired NASA lunar and planetary exploration scientist.
– Sarah Nobel is a current NASA lunar scientist and artist.
– Frank Shiner is a winner of both the 2010 and 2012 Humans in Space Youth Art Competitions.
– Jan van Muijlwijk PA3FXB, OPTICKS collaborator, radio operator, CAMRAS/Dwingeloo radio telescope.
– Daniela De Paulis is the visual artist and researcher who developed the OPTICKS live performance technology in collaboration with the Dwingeloo radio telescope.
– Jancy McPhee is the director of the Humans in Space Art Program, which includes the Youth Art Competition Project in its portfolio.

Learn more at http://www.Opticks.info and http://www.HumansInSpaceArt.org

OPTICKS makes use of a technology used by radio amateurs called Earth-Moon-Earth or Moonbounce in which the Moon is used as a natural reflector for radio signals.

In October 2009 Daniela de Paulis and Jan van Muijlwijk PA3FXB started pioneering a new application of Moonbounce technology, called Visual Moonbounce, which allows sending images to the Moon and back, combining Radio Astronomy with amateur radio technologies.

The title OPTICKS is inspired by Newton’s discoveries of the light spectrum, reflection and refraction. Similarly, the colours composing an image – converted into radio signals – are bounced off the Moon (reflected and refracted) by its surface during each live performance.

The performance is introduced by live sounds of amateurs radio signals captured by the Dwingeloo antenna tracking the moon.

Watch a recording of the performance for the radio programme RaiTunes:

You can support the project by purchasing a limited edition t-shirt from this link: https://fabrily.com/EarthAndMoon2

Google+ Hangout GAM AstroArt: Touching the Moon with Art & Footsteps https://plus.google.com/events/ckm4364t5f7fcg0m42rgb7br2lc

Daniela de Paulis http://www.danieladepaulis.com/

Story source: http://www.opticks.info/

Ofcom: Interference to 2400 MHz from LTE

Ofcom-logo-col-tOfcom has published additional information on co-existence studies between 2.3 GHz Long-Term Evolution (LTE) and 2400 MHz Wi-Fi.

The ITU Amateur-Satellite Service allocation is 2400-2450 MHz

In the consultation published on February 19, 2014, Ofcom presented technical analysis of the potential for interference from LTE base stations to Wi-Fi equipment operating in the licence exempt 2.4 GHz band.

Following a request from stakeholders, Ofcom has now published a measurement annex, from the research consultancy MASS.
http://stakeholders.ofcom.org.uk/binaries/consultations/pssr-2014/annexes/Annex_Study.pdf

Additional Test Results for Wi-Fi DUT 4
http://stakeholders.ofcom.org.uk/binaries/consultations/pssr-2014/annexes/Test_results.pdf

Ofcom’s public consultation is on-going and closes May 5, 2014, responses can be made online via
http://stakeholders.ofcom.org.uk/consultations/pssr-2014/

DX-1 Microsatellite to launch from Baikonur

Dauria Aerospace microsatellite DX-1

Dauria Aerospace microsatellite DX-1

The microsatellite DX-1 (27 kg 40x40x30 cm) built by Dauria Aerospace, is planned to launch June 28, 2014 on the Soyuz-2.1b, Fregat-M rocket from Baikonur in Kazakhstan.

It is understood the satellite will be using the following frequencies:
• 144.975-145.025 MHz Uplink – Command and control
• 434.975-435.025 MHz Downlink – Telemetry data
• 162.0125-162.0375 MHz Uplink – AIS ship tracking receiver
• 2269.5-2270.5 MHz Downlink – Data

Dauria Aerospace http://dauriaspace.com/

Watch DX-1 on Russian TV

GS3PYE/P Isle of Lewis from April 26

GS3PYE/P

GS3PYE/P

Camb-Hams will be operating on the amateur radio satellites, EME and HF using the call sign GS3PYE/P from the Isle of Lewis (IO68UL, EU-010) on April 26 to May 3, 2014.

The Camb-Hams have been activating the Scottish Isles each year since 2008 and will be travelling to the Isle of Lewis in the Scottish Outer Hebrides in 2014. Thirteen operators will be active on all bands and many modes from 4m to 80m, 2m & 70cm for Satellites and 2m & 23cm for EME from 26 April to 3 May 2014.

The HF bands will be covered by five simultaneous stations, while the 6m & 4m stations will have a great take-off towards the UK and Europe from the island’s northern tip in IO68 square. All stations will be able to run at the full UK power limit.

EME operations will use 150W to 55 elements on 23cm and 400W to 17 elements on 2m. Primarily on JT65 but also available for CW skeds – if your station is big enough.

Satellite operations on 2m & 70cm will use X-Quad antennas and a fully automatic Az/El tracking system. Activity is planned on AO-7 (mode B), VO-52, FO-29, SO-50 & AO-73.

GS3PYE MapContest operations will take place in the RSGB 70MHz UKAC on 29 April.

A number of the group are planning to make an extra trip to operate as GS6PYE/P from the Shiant Isles (EU-112). They are aiming for afternoon/early evening operations on 28 April, but may switch to 30 April if the weather is bad.

The group will be active on HF mobile and APRS as they travel, starting on 25 April. All the up-to-date plans and progress will be on the camb-hams site.

Most importantly, this is a group of good friends doing what they enjoy, so please give them a call and enjoy the trip with them. Active on the major social networks before, during and after the trip, you can check on progress and interact with the operators via their blog at http://dx.camb-hams.com/ or through Twitter, Facebook and YouTube [links below].

Please email skeds-2014@camb-hams.com to arrange skeds on the more challenging bands and modes. VHF and EME skeds will also be made via ON4KST, HB9Q (1296) and N0UK’s EME Chat (144). All links are available via the camb-hams site.

Web http://dx.camb-hams.com/
Twitter http://twitter.com/g3pye
Facebook http://facebook.com/CambHams
YouTube http://youtube.com/CambHams

Shin-En2 to carry Mode J linear transponder

Shin-En2 satellite

Shin-En2 satellite

Shin-En2 is a 17 kg satellite measuring 490×490×475 mm built by students at Kagoshima University in Japan that will carry a 145 to 435 MHz linear transponder into a deep space orbit.

The aims of the mission are:
• To establish communication technologies with a long range as far as moon.
• To establish a new technology of the ultra-light-weight satellite. Proposing a WSJT 29dBm UHF downlink and a 29dBm 20 kHz linear transponder and a CW beacon all on UHF with a VHF uplink for the transponder

The orbit will be quite different from the previous satellites. Shin-En2 will have an elliptic orbit around the Sun and travel to a deep space orbit between Venus and Mars. Its inclination will be almost zero, which means Shin-En2 will stay in the Earth’s equatorial plane. 

The distance from the Sun will be between 0.7 and 1.3 AU, where AU (Astronomical Unit) is approximately 1.5 x 108 km.

Shin-En2 is expected to launch in the 4th quarter of 2014 with another amateur radio satellite ARTSAT2:DESPATCH on a H-IIA rocket with the asteroid explorer Hayabusa 2 as the main payload.

Kagoshima University satellite development team
http://tinyurl.com/Kagoshima-Satellite

Shin-En2 English Website
http://www.eee.kagoshima-u.ac.jp/~fuku-lab/sinen,english.html

ARTSAT2:DESPATCH – Art and Ham Radio in Deep Space
https://amsat-uk.org/2013/11/03/art-and-ham-radio-in-deep-space/