24.06.2017 - Budapest - DFM #316132 - ~18 UTC

GElog, príspevky do GElogu, nájdené sondy...
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thieringpeti
Príspevky: 199
Dátum registrácie: 16. Októbra 2015, 21:11
Bydlisko: Budapest

24.06.2017 - Budapest - DFM #316132 - ~18 UTC

Príspevok od užívateľa thieringpeti » 27. Júna 2017, 22:17

Typ sondy : Graw DFM-09 "old version with 2x89c52 CPU"
HW kód : 316132
Frekvence : 404 MHz
Datum a čas vypuštění : 24.06.2017 around 19:00
Místo vypuštění : Budapest
Místo nálezu: 47.3183981,19.5937837

On the shortest night, 24th June, in Budapest there's a traditional event called "night of museums". The Budapest meteorological station has also joined, and organized a presentation, including a radiosonde launch. For this event, they use "new-old-stock" graw radiosondes. The one which was launched, produced in October, 2013.

The sonde fell near as predicted, and landed on a sunflower field. It was still transmitting its coordinates, so the capture was completed easily.

Then, with SZGY, we deceided, to retrieve the daily vaisala, which was still transmitting. We've located the sonde, and we began searching it with our yagi, but around 23:00, it ran out of batteries, and turned off permamently. Only a very weak signal could be seen on the spectrum, but with the yagi, we were unable to locate it. The strongest signal was at a fence of a weekend house, so we gave up searching in the dark. Dogs were also barking loudly, and an older couple asked us, what we're searching. We've told them that we're searching a radiosonde, and if they'll find it, just dispose it safely.
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