Horus 55 Balloon Flight: D-ATV Launch Tracking & Live-Stream Details

The DVB-S high-altitude balloon launch (hopefully the first of many!) has now been locked in for 10AM ACDT Sunday the 7th of March (2330z Saturday 6th), from the Auburn Oval. The launch team is expected to arrive on site starting 9AM, and spectators are welcome!

Tracking of the flight will be available on the Habhub tracker or should be visible here on our website!

For those without D-ATV receiving equipment, AREG is going to attempt to stream the received ATV pictures via Hayden VK7HH’s HamRadioDX YouTube channel at the same time. You will find the link to the YouTube broadcast here:

Tracking Details – Primary Telemetry – 434.200 MHz

The primary tracking telemetry will be transmitted on 434.200 MHz using the Horus Binary 4FSK data mode. Amateurs in the Adelaide and Central SA region are also encouraged to get involved with the flight through receiving and uploading flight telemetry from our 70cm band tracking beacons. Every piece of telemetry data is valuable to the flight tracking and recovery teams so if you can help join the distributed receiver network to collect that data you will be making an important contribution to the project!

If you try receiving the telemetry from this flight, you’ll need a SSB-capable 70cm receiver (or a SDR), and the Horus-GUI telemetry decoder software. A brief guide on setting this up is available here: https://github.com/projecthorus/horusdemodlib/wiki/1.1-Horus-GUI-Reception-Guide-(Windows-Linux-OSX)

Note that you will need to use a ‘dial’ frequency of 434.199 MHz for the 4FSK signal to be centred in your receiver passband and hence be decodable.

Tracking Details – DVB-S Video – 445 MHz

If you want to get involved through receiving the D-ATV signal direct from the balloon on 445 MHz take a look at the How-To Guide being maintained by Mark VK5QI, available here: docs.google.com/D-ATV_Setup_Guide

The DVB-S transmission parameters are as follows:

  • Frequency: 445 MHz
  • Polarisation: Vertical
  • Mode: DVB-S
  • Symbol Rate: 1 Msps
  • FEC: 1/2