http://ukhas.org.uk/ 2012-02-22T22:45:32+00:00 http://ukhas.org.uk/ http://ukhas.org.uk/lib/tpl/default/images/favicon.ico text/html 2012-02-21T05:34:31+00:00 nigelvh http://ukhas.org.uk/guides:radio_modules?rev=1329802471&do=diff NTX2 The Radiometrix NTX2 is the main radio transmitter module in use for UK HABing - it is available in 434.075 and 434.650MHz variants. The NTX2 is a 3V Narrowband FM module and primarily chosen for its data input characteristics - which are analogue rather than the more usual digital. This enables narrow frequency shifts and pulse shaping to be obtained. Output is 10mW. Current draw is 20mA when transmitting and 0.6mA in standby. The input voltage to frequency characteristics of the NTX2 ar… text/html 2012-02-20T11:36:45+00:00 daveake http://ukhas.org.uk/projects:cloud?rev=1329737805&do=diff A project by David Akerman Overview I have 2 separate running projects named BUZZ and CLOUD with, so far, 2 flights each. BUZZ is for lightweight payloads to achieve maximum altitude or (later) long floats. CLOUD is for more normal-sized photographic payloads. text/html 2012-02-20T11:35:49+00:00 daveake http://ukhas.org.uk/projects:buzz?rev=1329737749&do=diff A project by David Akerman Overview I have 2 separate running projects named BUZZ and CLOUD with, so far, 2 flights each. BUZZ is for lightweight payloads to achieve maximum altitude or (later) long floats. CLOUD is for more normal-sized photographic payloads. text/html 2012-02-16T20:28:41+00:00 upu http://ukhas.org.uk/guides:ntx2?rev=1329424121&do=diff NTX2 The Radiometrix NTX2 is the main radio transmitter module in use for UK HABing - it is available in 434.075 and 434.650MHz variants. The NTX2 is a 3V Narrowband FM module and primarily chosen for its data input characteristics - which are analogue rather than the more usual digital. This enables narrow frequency shifts and pulse shaping to be obtained. Output is 10mW. Current draw is 20mA when transmitting and 0.6mA in standby. The input voltage to frequency characteristics of the NTX2 ar… text/html 2012-02-16T20:24:45+00:00 upu http://ukhas.org.uk/guides:gps_modules?rev=1329423885&do=diff Recommended GPS Modules * At present there are 3 GPS Modules that are regularly used by UKHAS balloon flights. These modules use an AND statement rather than OR for their COCOM limits. This allows them to be used in high altitude balloon flights as they continue to function above 18km (60,000ft) as long as it doesn't exceed 515 m/s (which our balloon/payloads hopefully don't!). * uBlox 6 Based Modules The uBlox 6 family are the newest GPS module in use. Its the sucessor to the uBLOX 5. A 5… text/html 2012-02-16T20:21:19+00:00 upu http://ukhas.org.uk/general:suppliers?rev=1329423679&do=diff Communications * Mobile Phone * Radio Flight Computers * Gumstix * Laptops * Linksys NSLU2 (Slugs) * PC/104 * Atmel microcontrollers / Bascom AVR * Useful USB interface/programmer * Arduinos GPS * HAB Supplies * Spark Fun Meteorological Balloons * Random AeroSpace * Ebay * NovaLynx * Scientific Sales * Kaymont text/html 2012-02-16T20:19:28+00:00 upu http://ukhas.org.uk/frontpage:guides?rev=1329423568&do=diff Guides * Beginners Guide to Tracking Balloons using dl-fldigi * Sealing The Balloon * Launch Techniques * Parallax Near Space Book (pdf) - A comprehensive guide to building a payload using a parallax microprocessor. Interesting chapter on more advanced payloads. * Balloon Data * Pre Launch Checklist * Materials * Parachute Sizing Chart * Electrical connectors * GPS modules * FSA03 Ublox 5 GPS Module * GPSbee Ublox 5 GPS Module * Inventek ISM300F2-C5-V0004 High Altitu… text/html 2012-02-16T20:18:56+00:00 upu http://ukhas.org.uk/guides:ublox6?rev=1329423536&do=diff Overview The uBLOX NEO-6Q/MAX-6Q are the sucessor to the uBLOX 5 module used in the Falcom FSA-03. They are 50 channel GPS in a 16 x 12.2 x 2.4mm (NEO) 9.7 x 10.1 x 2.4mm (MAX) package. They are rated up to 50,000 meters altitude in flight mode. They are an inexpensive module with good performance. The chip is shielded though normal precautions with regards to ESD should be observed. Data sheet is available here. text/html 2012-02-16T13:28:45+00:00 acudworth http://ukhas.org.uk/projects:habe?rev=1329398925&do=diff Overview This is a A Level Student run project based in Worcester. Blog - <http://habe.acudworth.co.uk/blog> HABE 1 was a partial success - full run down on my blog - <http://habe.acudworth.co.uk/blog> Now I have a working tracking system, different experiments can now be carried out. HABE 2 is planned for launch in early August. text/html 2012-02-15T18:48:32+00:00 jcoxon http://ukhas.org.uk/general:upcoming_launches?rev=1329331712&do=diff CU Spaceflight - Churchill College Launch Site - Cambridge, Cambridgeshire Lat/long: 52.2135, 0.0964 - Map of launch site All launches subject to weather etc. Please see <http://twitter.com/cuspaceflight> for latest information. Launches from Cambridge predicted to land over Norfolk especially towards Thetford please discuss with Range Control 01842 855235 so that they are aware - if they feel it is unsuitable then postpone the launch.