Vaisala RS41 RadioSonde captured

During Wednesday (24th January 2018) afternoon the daily 11:15am RadioSonde launch from Camburne, Cornwall decided to make its way to Wiltshire rather than France, as is the norm at the minute. I left work mid afternoon to go home and collect my kit, arriving near Dauntsey, Wiltshire at 16:00. I then proceeded to triangulate the RadioSonde’s position using standard techniques. Once I got close enough I was able to run the SondeMonitor software (below) to see exactly where the RadioSonde was laying.

I was able to get the car to within 1/2 mile of ground zero. The ground to the RadioSonde however was very wet with a soggy boot gained. Once I entered the field the RadioSonde balloon was very obvious. At Ground Zero I found the balloon and parachute. Following a 60ft thread I found the Vaisala RS41 RadioSonde still chirping away.

All three items were taken away for examination and evidence. The balloon was not shredded but has two holes. The parachute is in perfect working order. The RS41 still works and will be kept in original order.

As soon as the next one comes up this way (Bristol UK) I will be on the hunt. Additionally I have found that the unit can be reloaded with different software.




Arduino Beginners Course – 21st February

The kits and coursework for the Arduino beginners course are now complete and ready to run.

Each kit has the following items:

Item Source Qty.
NodeMCU Lua V3 CH340G ESP8266 eBay h-quality_electronic 1
10pcs Micro USB cable eBay bigfashionmarket 1
NodeMcu Base ESP8266 Testing DIY Board For LoLin V3 NodeMcu Lua WIFI Develo G3E6 eBay 2013bestbuybest 1
10PCS Mini Universal Solderless Breadboard 400 Contacts Tie-points Available AM eBay alimodule 1
DuPont Hook up Cable wire Rainbow Ribbon of 40/10 Wires Male Male Female Female eBay mallinson-electrical 18
100 PCS 5mm Round Super Bright Red Light Output Diode LED Light BT eBay 2013bestbuybest 5
Mini Speaker eBay 2013bestbuybest 1
100x 6 x 6mm x 9.5mm PCB Momentary Tactile Tact Push Button Switch 4 Pin DI U2Q8 eBay 2013bestbuybest 5 (2 soldered to VB)
OLED Display 0.96in Ali Express 1

All bagged up ready to go:

The plan is to run the course on the evening of 21st February with an 8pm start or earlier if everyone is ready.

Please note you will need to bring a laptop or PC with either Windows 8.1 or 10. if you have something older please bring it along ASAP and we’ll check it out.


TSGARC visit to the Royal Navy Fleet Air Arm Museum Yeovilton

On Saturday 29th July the TSGARC visited the Royal Navy Fleet Air Arm Museum at Yeovilton.

A good day was had viewing aircraft from the start of flight through to models of the Royal Navy’s new Queen Elizabeth Class Aircraft Carriers and the new F35B Joint Strike Fighter. Aircraft viewed included the iconic Wessex helicopter seen below.

Some members also got to try out the exhibits.


How to get your rope over that tree!

So how many times have we wanted to get a rope over a tall tree?  American amateurs have a great solution but unfortunately, I suspect, its not possible for us here in the UK. 🙁

The solution is in episode 263 of Ham Nation (21 mins into the show) and is entitled ‘Coax and how To Get it 200 Feet into the Air!’. Whilst Ham Nation is always worth watching I’ve also put the manufacturers video below too.

Any dog owners know if something like this is available in the UK?


Improve your Morse code

There a few club members who know Morse code and would like to improve their skills in one way or another.  Speaking with members, I’ve heard mention of FISTS but never of CWOPS.  I know an amateur who has spent the last year with the CWOPS Academy program and who has greatly increased their speed and accuracy of receiving and sending.

Not to be forgotten is also the slow Morse transmissions by amateurs here in the UK on behalf of the RSGB.  This is how I originally learnt the code.

So, for those who may be interested, I’ve posted the links below: