ARLA/CLUSTER: Vários Radio balões em 434 MHz lancados hoje

[João Costa > CT1FBF]

Several 434 MHz balloons launch today

 A number of High Altitude Balloons carrying 434 MHz transmitters plan
to launch on Saturday, April 20.

 The 434 MHz telemetry beacons may have a range of up to 500 km
depending on the altitude.

NSE plans to launch on Saturday, April 20 at 9am from Bicknacre,
Chelmsford, Essex, UK. (51.697567, 0.582726)

 Payloads:
 NSE: 434.650MHz, 50 baud, 425hz shift, ASCII-7, 2 stop bits, no parity
 CHEAPO: 434.300MHz, 50 baud, 425hz shift, ASCII-7, 2 stop bits, no parity

 Only a small balloon so they are expecting a flight time of ~2hrs and
an altitude of 20km
 Target ascent rate: 6m/s
 Predicted descent rate: about 5m/s. Trackers would be much
appreciated for the flight :)

 Two students from Queen Mary University are planning to launch a
434.650 MHz balloon QMULS1 on Saturday, April 20 at 3pm They intend to
launch from the Elsworth Site near Cambridge.

This is the specification for their payload:
 Call Sign: QMULS1
 Frequency: 434.650 MHz
 Carrier Shift: 650Hz
 Baud Rate: 50
 Coding: 7 bits ASCII, no parity and 2 stop bits

The AURA balloon plan to launch on Saturday, April 20 at 11:15am from
Great Malvern.

Because of the clash of frequencies between AURA and NSE, they will
hold off launch until NSE1 has landed. Trackers would be very much
appreciated.

Predicted flight path
 http://habhub.org/predict/#!/uuid=
 010ca6db5fd06557c63848de37574f39cee4b70a

Payload
 Frequency: 434.650 MHz
 Shift: 500, Baud: 50
 Coding: 7 bits, no parity, 2 stop bits

Tracks of the balloons should be available at
http://www.spacenear.us/tracker

Twitter #ukhas https://twitter.com/search?q=%23ukhas

Beginners Guide to Tracking using dl-fldigi
http://ukhas.org.uk/guides:tracking_guide

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