Ham radio satellite activation of Berry Islands, Bahamas

Caribbean IslandSteve M1ACB, Rob M0VFC and John M0IDA will be active on the FM and SSB amateur radio satellites from Berry Islands in the Bahamas.

The trio plan to operate from March 4-10 and will be using hand-held antennas. Since the FM satellites will only cover part of the USA they’ll also be using SSB on FO-29 to reach the British Isles and Europe.

They will be operating from Little Harbour Cay in the Berry Islands, IOTA NA-054, Grid Square FL15do.

For further information see https://m1acb.wordpress.com/2017/02/18/1527/

Check Twitter for updates: @rmc47 (M0VFC), @ItinerantHam (M0IDA) and @m1acb

International Space Colloquium – First Call for Speakers

FUNcube-1 flight model - Image credit Wouter Weggelaar PA3WEG

AO-73 (FUNcube-1) – Image credit Wouter Weggelaar PA3WEG

This is the first call for speakers for the AMSAT-UK International Space Colloquium 2017 which will be held on Saturday and Sunday, October 14-15 at the Kents Hill Park Conference Centre, Timbold Drive, Milton Keynes, MK7 6BZ, United Kingdom.

AMSAT-UK invites speakers, to cover topics about Amateur satellites, CubeSats, Nanosats, Space. High Altitude Balloons and associated activities, for this event.

Those wishing to participate should contact Dave, G4DPZ, dave at g4dpz dot me dot uk

Further information https://amsat-uk.org/colloquium

73 Dave G4DPZ

AMSAT-UK: https://amsat-uk.org/
Twitter: https://twitter.com/AmsatUK
Facebook: https://facebook.com/AmsatUK
YouTube: https://youtube.com/AmsatUK

AMSAT-UK Colloquium 2008-2012 Videos

Steve Hartley G0FUW presents the Louis Varney Cup to Wouter Weggelaar PA3WEG - Credit Mike Rupprecht DK3WN

Steve Hartley G0FUW presents the Louis Varney Cup to Wouter Weggelaar PA3WEG 2016 – Credit Mike Rupprecht DK3WN

Wouter Weggelaar PA3WEG has retrieved videos of talks given at AMSAT-UK Colloquium 2008-2012 and made them available on YouTube.

The videos were made by members of the British Amateur Television Club (BATC) and stored on the club’s streaming site. Dedicated BATC members have carried out the world-wide streaming and recording of the  AMSAT-UK International Space Colloquium since 2007.

Due to lack of source information the descriptions and titles of the videos are not as informative as they should be. Have a search through them and share links with others on Twitter and Facebook.

Watch the videos at https://www.youtube.com/user/AMSATUK/playlists

Colloquium schedules giving speakers names and presentation titles for 2009-2012 are available on the bottom of this page https://amsat-uk.org/colloquium/

2017 AMSAT-UK International Space Colloquium

Kents Hill Park Conference Centre Milton Keynes MK7 6BZ

Kents Hill Park Conference Centre, Milton Keynes, MK7 6BZ

AMSAT-UK is very happy to announce that the dates of the next AMSAT-UK Colloquium will be October 14-15, 2017.

This year it will be incorporated into the RSGB Convention at the Kents Hill Park Conference Centre, Timbold Drive, Milton Keynes, MK7 6BZ. Exact details are currently being finalised with the RSGB and these will be notified when they are known.

If you have not been to Kents Hill Park before, it is very close to the M1 motorway and is near to Bletchley Park, where RSGB members have free entry. For overseas visitors it is convenient for planes to London Luton Airport (30-minute taxi ride) and also London Gatwick and Birmingham airports, both of which have direct train connections to Bletchley and/or Milton Keynes stations. These stations are approximately 10 minutes away by taxi.

Colloquium page: https://amsat-uk.org/colloquium/

Travel Information http://kentshillpark.com/how-to-find-us

AMSAT-UK: https://amsat-uk.org/
Twitter: https://twitter.com/AmsatUK
Facebook: https://facebook.com/AmsatUK
YouTube: https://youtube.com/AmsatUK

Small Satellite SDR Paper

Mamatha R. Maheshwarappa 2E0CZOMamatha R. Maheshwarappa 2E0CZO has released her paper “Improvements in CPU & FPGA Performance for Small Satellite SDR Applications”.

Abstract: The ongoing evolution in constellation/formation of CubeSats along with steadily increasing number of satellites deployed in Lower Earth Orbit (LEO), demands a generic reconfigurable multimode communication platforms. As the number of satellites increase, the existing protocols combined with the trend to build one control station per CubeSat become a bottle neck for existing communication methods to support data volumes from these spacecraft at any given time.

This paper explores the Software Defined Radio (SDR) architecture for the purposes of supporting multiple-signals from multiple-satellites, deploying mobile and/or distributed ground station nodes to increase the access time of the spacecraft and enabling a future SDR for Distributed Satellite Systems (DSS).

Performance results of differing software transceiver blocks and the decoding success rates are analysed for varied symbol rates over different cores to inform on bottlenecks for Field Programmable Gate Array (FPGA) acceleration. Further, an embedded system architecture is proposed based on these results favouring the ground station which supports the transition from single satellite communication to multi-satellite communications.

You can download the PDF of the paper from http://epubs.surrey.ac.uk/812783/

Mamatha worked on the STUDSAT-1, STUDSAT-2 and STRaND-1 satellites which carried amateur radio payloads and was Satellite Officer & Member of the Surrey Electronics and Amateur Radio Society
http://blog.surreyears.co.uk/
https://twitter.com/SurreyEARS
https://www.facebook.com/surreyEARS/

BY70-1 FM transponder contact video

Christian Jacobs 2E0ICL has released a video of his recent contact with Peter Goodhall 2E0SQL via the new amateur radio FM satellite BY70-1.

The satellite was launched into orbit on December 28, 2016. This is orbit #27.

Watch New FM transponder satellite BY70-1

BY70-1 information https://amsat-uk.org/2016/12/27/by70-1-fm-transponder-satellite/

Christian Jacobs 2E0ICL has also released a video of his recent FM contact via the SO-50 satellite during a recent Summits On The Air (SOTA) activation at Walbury Hill (summit identifier G/SE-001).

A total of 13 contacts were made, mostly on 2m SSB, including some FM satellite working via SO50 with 10 watts to an Arrow dual-band antenna.

Watch Summits on the Air: G/SE-001, Walbury Hill

SO-50 satellite https://amsat-uk.org/satellites/communications/saudi-oscar-50/

BY70-1 FM transponder satellite https://amsat-uk.org/2016/12/27/by70-1-fm-transponder-satellite/

Arrow 2m/70cm dual-band antenna
http://shop.amsat-uk.org/Arrow_2m70cms_antenna/p3815740_16665431.aspx