Southampton students to launch 434 MHz eclipse payload

Assembling SUSF payloads for solar eclipse launchThe University of Southampton Spaceflight Society will be launching for the solar eclipse on Friday, March 20, with two 434 MHz Slow Scan Digital Video (SSDV) balloon payloads.

The transmitters are as follows:

MAJORA – 434.211 MHz USB, 600 bps RTTY, 600 Hz Shift, 8n2 – (SSDV + no GPS)
OLAF – 434.149 MHz USB, 300 bps RTTY, 880 Hz Shift, 8n2 – (SSDV + GPS)
There may also be a backup tracker on 434.700 MHz USB.

The launch will take place from Pepperbox Hill near Salisbury, at 7am due to the NOTAM, so it will be sent up slowly, perhaps landing in France.

Live launch webstream: http://www.batc.tv/streams/m0dny
Prediction: http://predict.habhub.org/#!/uuid=eb10ee6e7030c615d2e0f49243add969e42465b0
Project page: http://susf.co.uk/launches/eclipse/
Eclipse summary page: http://ukhas.org.uk/news:balloon_launches

Thanks in advance to all those who will try to listen

Matt Brejza

The 434 MHz signals transmitted by High Altitude Balloons can have a range of up to 800 km. The path of the balloons can be tracked in real-time at http://spacenear.us/tracker/

Useful links for tracking, receiving and decoding the telemetry from 434 MHz balloons can be found at
https://amsat-uk.org/beginners/balloons/

Listen for 434 MHz balloon signals online using the SUWS WebSDR, further details at
https://amsat-uk.org/2014/08/15/suws-websdr-moves-to-new-site/

434 MHz balloon launch at BBC Stargazing event
https://amsat-uk.org/2015/03/16/434-mhz-balloon-launch-at-bbc-stargazing-event/

Ulster 434 MHz Solar Eclipse Balloon

Radio amateur Philip Heron MI0VIM reports on a Raspberry Pi balloon which will be launched for the eclipse and should be receivable across the British Isles.

All being well there will be a launch from Cookstown, N.Ireland on Friday, March 20 at about 0700 UT.

The plan is to have it rise high enough before the time of maximum solar eclipse, and maybe image the lunar shadow on the horizon. This will have a slow ascent rate and should hopefully float at about 36km, on a path which takes it south towards Dublin, before turning east to Wales and on towards Germany.

Callsign: EAGLE
Frequency: 434.250 MHz USB
Mode: RTTY 300 baud 8N2

The payload consists of a Raspberry Pi A+, camera and a Pi In The Sky module. It will be sending SSDV images throughout the flight.

The 434 MHz signals transmitted by High Altitude Balloons can have a range of up to 800 km. The path of the balloons can be tracked in real-time at http://spacenear.us/tracker/

Useful links for tracking, receiving and decoding the telemetry from 434 MHz balloons can be found at
https://amsat-uk.org/beginners/balloons/

Listen for 434 MHz balloon signals online using the SUWS WebSDR, further details at
https://amsat-uk.org/2014/08/15/suws-websdr-moves-to-new-site/

434 MHz balloon launch at BBC Stargazing event
https://amsat-uk.org/2015/03/16/434-mhz-balloon-launch-at-bbc-stargazing-event/

Near-Space Amateur Radio Balloon Flight 29.494 MHz

sp9uob_frontThe SEBA-3 high-altitude amateur radio balloon, with a 29.494 MHz RTTY transmitter, launches Saturday, May 25. Other balloons carrying 434 MHz transmitters are also launching this weekend.

One of the 434 MHz balloons PIE will have live video streaming of the launch and from the chase car via the British Amateur TV Club website at http://www.batc.tv/ (select “Live Events” then UKHAS Balloon Launches)

The IARU Region 1 website announcement regarding SEBA-3 says:

On Saturday May 25 at 1000 UT (1100 BST), the team from the club SP9PDF – directed by Tomasz, SP9UOB – will conduct another experiment of flight of an unmanned stratospheric balloon.

The balloon, with the code name SEBA-3, will start from the place of the nationwide amateur radio picnic named “ŁOŚ” (long.: 18.6689 E, lat.: 51.0399 N, QTH locator: JO91IA).

A telemetry transmitter with 500mW power, placed in the capsule of the balloon, will operate on RTTY 50 baud on 29.494 MHz USB with the shift 240 Hz, 7N2. ATV transmission from the camera in the capsule of the balloon is also planned.

Detailed instructions in English for configuring the software are available on the website: http://ukhas.org.uk/guides:tracking_guide

We invite everyone to follow the flight through listening to the tracker, or to visit the website: http://spacenear.us/

SSDV picture from a previous PIE balloon - Image credit Dave Akerman M6RPI

SSDV picture from a previous PIE balloon – Image credit Dave Akerman M6RPI

Among the 434 MHz balloons launching this weekend are:

– PIE built by Dave Ackerman M6RPI on Sunday from Brightwalton with live streaming of launch and from the chase car at http://www.batc.tv/
The PIE balloon will be transmitting images using Slow Scan Digital Video (SSDV)
Callsign: PIE
Frequency: 434.075 MHz and 434.650 MHz 600Hz shift 600 Baud 8 bits no parity 2 stop bits

– BABSHAB from Great Tew, Oxfordshire
Exact location: Within 500m radius around latitude 51.956468, Longitude -1.416999
Callsign: BABSHAB
Frequency: 434.075 MHz RTTY 450 shift 50 Baud 7 ascii bpc No parity and 2 stop bits.

– XABEN50 launches about 11:30 BST on Sunday, May 26
Callsign: uXABEN Frequency 434.350MHz 7N1 ASCII FSK RTTY

Tracking site: http://spacenear.us/

Slow Scan Digital Video (SSDV) Guide http://ukhas.org.uk/guides:ssdv

The free balloon software dl-fldigi can decode many different amateur radio digital modes, download Windows, Mac or Ubuntu Linux versions at
http://wiki.ukhas.org.uk/projects:dl-fldigi

World-wide Amateur Radio High Altitude Balloon announcements
http://www.arhab.org/hab_launch_list.php?daysBack=30

To get details of upcoming UK balloon launches subscribe to the UKHAS Mailing List by sending a blank email to this address:
ukhas+subscribe@googlegroups.com