RAG 2014 – Demonstrations, Posters and Tickets

National Space Centre Leicester

National Space Centre Leicester

The BAA Radio Astronomy Group will be holding its 2014 General Meeting on Saturday, May 17 at the National Space Centre, Leicester, LE4 5NS.

Paul Hyde G4CSD writes:

1. Demos and posters
With seven weeks to go we need to sort out the amount of space to be allocated for seating versus displays. If you are coming along to this event (NSC, Leicester, Saturday, May 17) and have something that you would like to exhibit in the lunchtime and tea intervals please let me know immediately by direct mail.

This could be hardware or poster material, or combinations of both. The electrically noisy environment of the NSC will limit live demonstrations but people always like see to hardware, whilst results and photographs from other people’s work can provoke ideas and encourage experimentation.

2. Filter alignment
If there is sufficient interest we have had a kind offer from Ian Lever to bring along equipment for measuring the performance of passive filters for hydrogen line receivers. The equipment is heavy and bulky so it is only worth doing this if there are several people who can make use of the opportunity. Conversely, Ian does not want to miss out on the main event so there will be a maximum of six slots, based on those making bookings before the day. Please note that this will be for checking performance only as there will not be time to do any alignment work. If you are interested, please contact me immediately so that we can decide whether to go ahead with this or not.

3. Ticket availability
Please note that two thirds of the tickets have already been sold and there is a piece in this month’s Astronomy Now, plus one in the next Sky at Night magazine, so I’m still expecting that tickets will not be available at the door. If you want further information about the event and the talks, or details of how to buy tickets, go to the RAG website at http://www.britastro.org/radio/

Supporting papers so far offered are: an ultra-low cost Hydrogen Line radio telescope (Peter East); the modelling of our local galactic topology (Gordon Dennis); the roles of Australian no deposit casinos in the growing online economy of Australia and New Zealand and on top of that, the comparethebets make an excellent list each year; the design of an Arduino-based magnetometer (Jonathan Rawlinson M0ZJO); making and analysing observations with Starbase (Laurence Newell); experiments with a small SDR radio telescope (David Morgan 2W0CXV); and reports on developments at EAARO (Jason Williams M0YJW) and the Harold Clayton Observatory (Dave James).

Tickets for the event cost £12 for BAA members and £15 for non-members, including free parking at the NSC and free admission to the main attraction, excluding the Planetarium show. Tea and coffee will be provided during the breaks but lunch is not included. Delegates are welcome to bring their own lunch or the NSC shop (Boosters) sells a range of sandwiches and other refreshments. It would help the NSC if you could also note the number of people in your party that are likely to use Boosters when you book tickets.

BAA-RAG Yahoo Group http://groups.yahoo.com/group/baa-rag

President tests LituanicaSAT-1 FM transponder

Lithuanian President Dalia Grybauskaitė - Image Augustas Didzgalvis

Lithuanian President Dalia Grybauskaitė – Image Augustas Didzgalvis

In 2013 the President of the Republic of Lithuania, Dalia Grybauskaitė visited the Science Communication and Information Center (SCIC ) at Vilnius University. There she saw the amateur radio CubeSat LituanicaSAT-1 and tested the satellite’s FM voice transponder with a handheld radio using the call sign LY5N.

LituanicaSAT-1 was launched to the International Space Station (ISS) on January 9, 2014 and was deployed with other amateur radio satellites on February 28.

The tiny satellite is just 10x10x10 cm with a mass of 1.090 kg yet it has a VGA camera and a 145/435 MHz FM voice transponder, designed and built by Lithuanian radio amateurs.

The prototype of the FM repeater has been operating in the home of its designer Žilvinas Batisa LY3H in Elektrėnai, Lithuania. Further information at http://ly3h.epalete.com/?p=303

Watch this video of President Dalia Grybauskaitė and LituanicaSAT-1

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

Ofcom Consultation: 146-147 MHz for Amateur Radio use in UK

AMSAT-UK Logo

AMSAT-UK Logo

Ofcom has published a consultation on the release of around 6 MHz of very high frequency (VHF) spectrum in the 143 to 169 MHz band, which has been returned for civil use.

The consultation says:

1.7 As demand for both operational and potential future services in the short to medium term is likely to be low we are also proposing to permit temporary access to 1 MHz of this spectrum (146 to 147 MHz) for Amateur Radio use, until such a time as it is needed by Business Radio or other services. Should additional spectrum be needed to meet operational requirements, we will remove the temporary allocation. Amateur Radio use of this frequency will be on a non-protection/ non-interference basis and will be subject to some geographical restrictions to ensure that there is no interference to neighbouring countries. We propose that the authorisation will be implemented by an individual Notice of Variation (NoV) to the Amateur Radio licence.

The consultation summarises responses to an earlier Call for Input on the release of spectrum in England, Wales and Northern Ireland between 143 and 156 MHz spectrum. Today’s document also encompasses spectrum that has been returned for civil use between 168 MHz and 169 MHz. Since the Call for Input was published, this spectrum is now available on a UK-wide basis.

The consultation explains Ofcom’s proposed approach to allocating the released spectrum, including a proposal that spectrum be made available on a first-come-first-served basis through Ofcom’s current Business Radio licence products.

Responses to the proposals are invited by 26 May 26, 2014, make your response at
http://stakeholders.ofcom.org.uk/consultations/vhf-143-169mhz/howtorespond/

Consultation document
http://stakeholders.ofcom.org.uk/binaries/consultations/vhf-143-169mhz/summary/VHF_consultation.pdf

Consultation: Responses to the Call for Input and Consultation on next steps of the release of spectrum within the frequency ranges 143 MHz to 169 MHz
http://stakeholders.ofcom.org.%20uk/consultations/vhf-143-%20169mhz/

PRN codes for KickSat Sprites released

Cornell KickSat Antenna

Cornell KickSat Antenna

Zac Manchester KD2BHC has posted another update on the KickSat CubeSat which will carry 104 tiny Sprite satellites into a 325×315 km 51.5 degree inclination orbit. The launch will be broadcast live on NASA TV, which will also be streaming on Ustream.

UPDATE: The launch has been postponed, see http://spaceflightnow.com/falcon9/009/140327delay/ For latest date check http://spaceflightnow.com/tracking/

SpaceX Falcon-9 CRS-3 Mission Patch

SpaceX Falcon-9 CRS-3 Mission Patch

The primary launch date for the SpaceX Falcon 9 CRS 3 mission from the Kennedy Space Center will be March 31 at 0250 GMT. There is also a backup date of April 4 at 0140 GMT.

Zac says “Since a laptop can only decode one or two Sprite signals at a time, I’ve also been busy getting our radio upload page set up so that you can record a pass without having to decode it in real-time, upload the .wav file, and have all 104 Sprite signals decoded on our server with the results emailed back to you. This will also help our team collect as much data as possible from around the world. The page will be live before launch.”

All of the 104 Sprite satellites transmit on the same frequency. Each Sprite has a unique pair of Pseudo-Random Number (PRN) codes that it encodes its transmissions with, allowing a receiver to tell the Sprites apart (this is known as CDMA). A list of all Sprite PRN codes codes is available at https://docs.google.com/spreadsheet/ccc?key=0ArAGbHISj5okdEhBbkZiWGxBSjNmcEs4ZkgwMmNsUEE&usp=sharing

KickSat Sprite satellites deployed - Image by Ben Bishop VK2FBRB

KickSat Sprite satellites deployed – Image by Ben Bishop VK2FBRB

Read KickSat Update 62

KickSat Google Group https://groups.google.com/forum/#!forum

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

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

KickSat Amateur Radio Information
https://github.com/zacinaction/kicksat/wiki/Radio-Info

Setting up a ground station
https://github.com/zacinaction/kicksat/wiki/Setting-Up-A-Ground-Station

Watch a video of the planned deployment at
https://amsat-uk.org/2014/03/03/mass-launch-of-437-mhz-satellites/

New frequency for Ukrainian PolyITAN-1 CubeSat

PolyITAN-1 1 – Girder; 2 – Honeycomb panels of solar battery 5 units; 3 – Base (bottom plate); 4 – Solar cells; 5 – PCB units of the platform; 6 – Accumulators unit; 7 – GPS antenna; 8 – X-band antenna; 9 – S- band antenna.

PolyITAN-1
1 – Girder;
2 – Honeycomb panels of solar battery 5 units;
3 – Base (bottom plate);
4 – Solar cells;
5 – PCB units of the platform;
6 – Accumulators unit;
7 – GPS antenna;
8 – X-band antenna;
9 – S- band antenna.

The IARU Satellite Frequency Coordination Panel have announced a new frequency for the Ukrainian amateur radio CubeSat PolyITAN-1, planned to launch from Yasny in Russia.

IARU say the new frequency of 437.675 MHz was needed to avoid interference occurring with another spacecraft on the same launch.

PolyITAN-1 was built by students at the Kiev National University “KPI” in cooperation with the Ukrainian ham radio community.

The mission is to launch Ukrainian educational satellite build by KPI students and space exploration enthusiasts. Specific mission targets are:
• Develop, build, test, launch and operate a Ukrainian small satellite platform based on the CubeSat standard.
• Conduct mission experiments with following payloads:
.  o Sun sensor
.  o Attitude position and orientation system including system software
.  o Test on-board GLONASS/GPS navigation subsystem
• Build ground segment infrastructure for satellite communication
• Develop and test onboard and ground telecommunication software, implement telecommunication protocols
• Establish cooperation between educational institute, space agency(s) and various government authorities, Ham radio community

PolyITAN-1 is a 1U CubeSat which will have a 1200 bps AFSK AX25 600 mW downlink on 437.675 MHz. It will also have a CW beacon (EM0UKPI).

Architecture Design of PolyITAN-1
http://congress.cimne.com/eucass2013/admin/files/fileabstract/a272.pdf

PolyITAN-1 in Google English http://tinyurl.com/PolyITAN-1
Original text http://amsat.at.ua/

UY2RA Blog Post http://tinyurl.com/UY2RA-Blog-Post

Two Geostationary Amateur Radio Transponders on Es’hail 2

 

Coverage area of Es'hail 2

Qatar’s Es’hail 2 satellite will provide the first amateur radio geostationary communications that could link amateurs from Brazil to India. The satellite is expected to launch by the end of 2016 and will be positioned at 25.5 degrees East.

AMSAT-DL President Peter Guelzow DB2OS at the Qatar National Day Station A71QND

AMSAT-DL President Peter Guelzow DB2OS at the Qatar National Day Station A71QND

AMSAT-DL President, Peter Guelzow DB2OS, has provided the following information:

Es’HailSat-2 will carry two geostationary “Phase 4” amateur radio transponders !!

As a result of a concept proposed by the Qatar Amateur Radio Society, Es’ Hailsat, the Qatar Satellite Company, have announced that their new, geostationary, Es’HailSat-2 communications spacecraft will provide transponders for use by radio amateurs. The spacecraft is expected to be ready for launch by the end of 2016.

Es’HailSat-2 will provide a 250 kHz linear transponder intended for conventional analogue operations in addition to another transponder which will have an 8 MHz bandwidth. The latter transponder is intended for experimental digital modulation schemes and DVB amateur television.

Es'hail-2 coverage areaPrecise uplink and downlink frequencies remain to be finalized but the uplinks will be in the 2.400-2.450 GHz and the downlinks in the 10.450-10.500 GHz amateur satellite service allocations.

Both transponders will have broad beam antennas to provide full coverage over about 1/3rd of the earth’s surface. Precise operational plans will be finalised over the coming months but it is anticipated that only quite simple ground equipment will be required to use this satellite.

A team of amateurs, led by Peter Guelzow DB2OS (President of AMSAT-DL) are providing technical support to this ground breaking project which is expected to provide an exciting new phase of activity for radio amateurs for the 21st century.

Es’hailSat announces tender process for Es’hail 2
http://www.qatarchronicle.com/science-and-technolgy/49977/eshailsat-announces-tender-process-for-eshail-2/

Es’hailSat – the Qatar Satellite Company https://www.facebook.com/EshailSat

Presentation by Peter Guelzow DB2OS, President of AMSAT-DL, at the 2013 AMSAT-UK Colloquium
http://www.batc.tv/streams/amsat1306

AMSAT Deutschland https://www.facebook.com/amsat.deutschland