www.webx.dk Start page

OZ2CPU and copenhagensuborbitals balloon test payload 001

please all radioamateurs and all other with HF receiver world wide !!!
please listen after the CW code, please email me prof of reception, to thomas@webx.dk
use for example : audio recording, screenshoot from CWget - more about cwGet audio morse decoder,
copy and paste the decoded text and email me, or even a brain decoded txt is fine.

I will not reveal the compleete telemetry data format, so your prof is the fact that you got it right :-)
I will give a price to the longest distance proven.
but please all near by listners dont hesitate to send in your logs too, I will be super happy for any repport I can get.
we newer know how the HF bands are that day so we might not get any repports from out of europe.
The launch will be from a safe location in Denmark.

please email me asap after the mission

question : how do we inform all interested radio listners to tune in and be ready,
we need all hardware and software to be 100% ready and then start looking on the weather forecasts,
before we can setup a launch date and location

Tech info

1 Large weather ball0on filled with light weight gas 2 nylon line 3 parashute 4 nylon wires and 5m antenna part for hf 5 payload box 6 5m antenna part for hf 7 tiny weight to hold down the antenna wire straight

Sensors
GPS several units, different types, position, height, vertical speed, number of sats.
Air pressure, so height can be calculated if GPS fail
Humidity sensor if I can get a good one
Temperatures on battery and tx units and outside
G force vertical with hight resolution
Battery voltage and current usage and mAh used

other features
audio and light alarm, so the payload can be found by non-technical personals, in case we loose radio contact or something go wrong

clear name plate with phone number at such, just in case..
as water tight as possible, and as floating on water as possible, and as visual as possible.

Tech data
weather baloon size : xxx, empty weight xxx
gas type used : hydrogen is 25% more buoyant than helium, so we plan to use hydrogen
how much gas used :
lift of baloon at ground with no payload mounted.
parashute area : xxx, weight xxx
payload size : xxx, weight xxx
total weight :

Battery management
100% to 50% : all systems running full features.
49% and down : video cam and video transmitter off
30% and down : high speed telemetry off
20% and down : HF CW beacon will sleep 10mins, wake up and transmit postion repeated two times.

Goals

I also will add several other sensors and radio links, the goal is also to see how well they perform

several persons on ground will perform a live SAR opperation based on live position data,
it is important for us to see how well we can track the balloon
and how fast and easy we can retrive it again

we also want to test ground station receivers and dataloggers and directional antennas.

Here is a sneek pre-view of the PC telemetry logger software I made for this project.
offcourse the plan is to reuse as much as possible for the rockets

results

Links