Ofcom: Statement on Spectrum Sharing

Ofcom-logo-col-tOfcom has published its Spectrum Management Strategy and Statement on Spectrum Sharing.

The Spectrum Management Strategy sets the strategic approach and priorities for managing radio spectrum.

As the intensity of spectrum use increases, with greater levels of sharing between different uses, managing the co-existence between services will become more important. Ofcom’s strategic approach relies on market mechanisms where possible and effective and on regulatory action where necessary. It also places increased emphasis on:

• exploring opportunities for new types of spectrum sharing;
• managing the co-existence of different services and by promoting technology improvements that minimise interference;
• providing more information on how spectrum is used in the UK. As part of this, Ofcom has published today an interactive spectrum map providing easy-to-access details on how different frequencies are used in the UK; and
• leading discussions on international spectrum issues.

Six priorities for spectrum management

Ofcom has identified six priority areas for future spectrum use. They are:
1. Future mobile data demands: Ofcom will consider the potential impact these demands have on other users of spectrum. Ofcom will also contribute to international decisions, examine in detail the case for using more spectrum for mobile data, support improvements in mobile coverage and monitor developments towards 5G technology.

2. The future of the 700MHz band and free-to-view TV: Ofcom is investigating the potential to rearrange the bands used for digital terrestrial TV. This could release more of this prime spectrum for mobile broadband use sometime after 2018, while ensuring that viewers would continue to benefit from digital terrestrial TV.

3. Public sector spectrum release: Ofcom will support the Government in achieving its target to release 500 MHz of spectrum from the public sector. A first step will be the release of spectrum at 2.3 and 3.4 GHz, currently held by the Ministry of Defence.

4. Programme Making and Special Events: Ofcom is working with PMSE stakeholders to understand their current and future spectrum demands for wireless microphones and cameras.

5.Machine-to-Machine applications: Ofcom has started work to understand the implications of the expected growth in M2M. Enabling licence exempt access to the 870-915 MHz band is a first step towards ensuring spectrum availability to support innovation in this area. The UK is among the first countries globally to release spectrum that can support M2M communications.

6.The emergency services: Ofcom will support the Government is assessing how best to deliver the wireless communications needs of the emergency services over the long term.

Encouraging the wider use of spectrum sharing

In the UK, half of all adults own a smartphone and one in four households has a tablet computer, fuelling a surge in demand for more data capacity. Meanwhile, research commissioned by Ofcom found that by 2022 over 350 million additional devices in the UK – including cars, crop sensors and washing machines – are also likely be connected to the internet, many using tiny slivers of spectrum.

To help meet this demand and building on our existing work to open up TV white spaces for use by a range of innovative services, Ofcom has identified three key areas where spectrum sharing can play an important role:

• for indoor use: by continuing to provide high speed wireless network connectivity to ensure that consumers can fully benefit from the increasing availability of superfast broadband;
• for outdoor use: by increasing the supply of spectrum for use by a growing number of small mobile broadband cells, which are being deployed to help meet the growth in demand for mobile data capacity driven by the increasing use of smartphones and tablets; and for
• the internet of things (IoT) use: by helping provide the spectrum needed to support growth and innovation in the emerging IoT sector, which is set to see hundreds of millions of devices become wirelessly interconnected by the end of the decade. These new services have the potential to provide benefits across a wide range of sectors, including healthcare, energy distribution, transport and agriculture.

Read the document The future role of spectrum sharing for mobile and wireless data services
http://stakeholders.ofcom.org.uk/binaries/consultations/spectrum-sharing/statement/spectrum_sharing.pdf

Ofcom Spectrum Management Strategy can be found at
http://stakeholders.ofcom.org.uk/consultations/spectrum-management-strategy/statement/

A Statement on Spectrum Sharing can be found at
http://stakeholders.ofcom.org.uk/consultations/spectrum-sharing/statement/

Ofcom: Interference to 2400 MHz from LTE
https://amsat-uk.org/2014/04/28/ofcom-interference-to-2400-mhz-from-lte/

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

LituanicaSAT-1 FM transponder active May 1

LituanicaSAT-1 Camera and FM Voice Transponder

LituanicaSAT-1 Camera and FM Voice Transponder

The LituanicaSAT-1 team have provide a further update on upcoming operation of the CubeSat’s FM transponder.

LituanicaSAT-1

LituanicaSAT-1

Dear amateur radio operators,

The LituanicaSAT-1 FM transponder is scheduled to be operative again on May 1, from 9:30 UT to 14:00 UT.

Satellite’s ground control station in Vilnius will be monitoring the transponder’s frequency and attempt to call CQ with the amateur call sign LY5N (LituanicaSAT-1 callsign) when the satellite will be in sight of the ground station. The expected time windows are:

* 2014/05/01 10:46:22 UT – 2014/05/01 10:56:24 UT
* 2014/05/01 12:21:48 UT – 2014/05/01 12:31:47 UT

LituanicaSAT-1 FrequenciesAll QSO’s with the call LY5N will be granted special QSL cards, signed by the LituanicaSAT-1 core team members and sent out via bureau (no directs).

Every amateur working the FM repeater is encouraged (but not obligated) to RX and answer only the LY5N CQ call during the above time windows.

73,
LituanicaSAT-1 team

Frequency are approximately 435.1755 MHz for the downlink and 145.950 MHz for the uplink (+/- Doppler Shift).

FM transponder operating techniques http://www.dk3wn.info/p/?p=44412

Lithuanian CubeSat LituanicaSAT-1 https://amsat-uk.org/2014/02/27/lituanicasat-1-cubesat/

KickSat Sprites – Final Preparation

KickSat Sprite satellites deployed - Image by Ben Bishop VK2FBRB

KickSat Sprite satellites deployed – Image by Ben Bishop VK2FBRB

The British Interplanetary Society (BIS) are holding a meeting to prepare for reception of their fleet of Sprite satellites which will be deployed by the KickSat CubeSat on May 4 at 2000 UT.

437 MHz Sprite

437 MHz Sprite

Everyone is welcome to attend the meeting which takes place from 10 am to 4:30 pm on Saturday, May 3 at 27/29 South Lambeth Road, Vauxhall, London, SW8 1SZ.

The BIS events page says:

Dragon X has successfully deployed the KickSat CubeSat carrying 104 Sprites, a fleet of which were funded by the BIS and BIS members!

KickSat deploying Sprite satellites - Image by Ben Bishop VK2FBRB

KickSat deploying Sprite satellites – Image by Ben Bishop VK2FBRB

In preparation for the timed deployment of the Sprites from the CubeSat, the BIS KickSat team will meet at the BIS HQ with two goals:
• Ensure everyone with a ground station has a working installation of GNURadio
• Have some practice tracking other satellites

Present on the day will be radio experts, software experts, and a range of software defined radios and antenna.

Everyone is welcome to attend. Bring a laptop if you want help installing GNURadio.

Source http://www.bis-space.com/2014/04/20/12638/kicksat-final-preparation

Andrew Vaudin of the British Interplanetary Society (BIS) gave a presentation on the BIS Kicksat Sprite satellite to the AMSAT-UK International Space Colloquium on Sunday, July 21, 2013. You can watch the video of his presentation at http://www.batc.tv/streams/amsat1310
or download it direct to your PC at http://www.batc.tv/vod/kicksat.flv

In this video Ben Bishop VK2FBRB shows what the deployment may look like

British Interplanetary Society: Sprite Technical Summary
http://www.bis-space.com/2013/03/09/9301/kicksat-technical-summary

KickSat Sprite Ground Station by Andy Thomas G0SFJ
http://kicksat.wordpress.com/support/kicksat-ground-station/

Kicksat Wiki https://github.com/zacinaction/kicksat/wiki

KickSat mailing list https://groups.google.com/forum/#!forum/kicksat-gs

Kicksat Updates
https://www.kickstarter.com/projects/zacinaction/kicksat-your-personal-spacecraft-in-space/posts

KickSat Sprites – Radio Competition https://amsat-uk.org/2014/04/10/kicksat-sprites-radio-competition/

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/