Search found 10 matches

by jch
Mon Mar 16, 2020 8:04 pm
Forum: Flight Log
Topic: SP9UOB
Replies: 23
Views: 10416

Re: SP9UOB

Congratulations, great achievement!

Do you plan publishing all recorded data somewhere? There is something visible in telemetry graph on habitat but it seems to include just few last days, so older data is not visible.
by jch
Sun Mar 08, 2020 7:01 pm
Forum: General
Topic: Photos from picoBalloon Challenge 2020
Replies: 0
Views: 3224

Photos from picoBalloon Challenge 2020

My photos from this year's event are available at https://photos.app.goo.gl/xWubrd1ihMwqQXwa9. Unfortunately I had to leave early so I do not have pictures from all of the launches, and I have probably missed first one as well. Feel free to share the pictures under CC-BY-ND license. I have took more...
by jch
Sat Mar 07, 2020 8:54 pm
Forum: Flight Log
Topic: PICObastl!!!_tracking
Replies: 16
Views: 5512

Re: PICObastl!!!_tracking

I am not sure if you know about that, but TTN in India uses different frequency plan than in Europe, so if you do not have some kind of geo-fencing switching frequencies accordingly, I don't think you will get anything from TTN in India. You can find more details at https://www.thethingsnetwork.org/...
by jch
Fri Mar 06, 2020 6:29 pm
Forum: General
Topic: Qualatex utěsnění
Replies: 4
Views: 1911

Re: Qualatex utěsnění

Nějakou svářečku tam měli. Podrobnosti nevím, u nafukování jsem povětšinou nebyl (snažil jsem se fotit starty), ale pár fotek jsem našel.

Hádám že @Okamensky k tomu bude mít víc podrobností.
by jch
Thu Mar 05, 2020 7:07 am
Forum: Flight Log
Topic: LAMA
Replies: 5
Views: 2179

Re: LAMA

HYSPLIT prediction based on last known position:
hysplit-26.7052-59.5102.gif
hysplit-26.7052-59.5102.gif (52.35 KiB) Viewed 2003 times
by jch
Wed Mar 04, 2020 7:06 am
Forum: Flight Log
Topic: LAMA
Replies: 5
Views: 2179

Re: LAMA

It's still alive! Last contact as of now was at 2020-03-04T00:31:17.53497973Z, so after approximately 37,2 hours of flight time. Unfortunately no GPS position this time and I still don't have TTN metadata that would include information about gateways that received these messages, so we are clueless ...
by jch
Tue Mar 03, 2020 10:19 pm
Forum: Flight Log
Topic: LAMA
Replies: 5
Views: 2179

Re: LAMA

News I have updated tracking page (http://egm.cloud/balon/) to include more information: - Table showing all data sent by TTN network (this includes packets without valid GPS position). - Chart showing plottable data (altitude, voltages, time to fix) changing over time. Details I guess that data lo...
by jch
Tue Mar 03, 2020 8:26 am
Forum: Flight Log
Topic: LAMA
Replies: 5
Views: 2179

LAMA

LAMA Tracking - Tracking is available at http://egm.cloud/balon/. - Only flight path based on received GPS coordinates is available now. I will add table showing other data later today. Last contact Last message (as of now) lacked coordinates, so we don't know where the probe is, but it was receive...
by jch
Mon Jan 27, 2020 11:35 pm
Forum: Flight Log
Topic: Hvezdarna a planetarium Brno
Replies: 9
Views: 3500

Re: Hvezdarna a planetarium Brno

Díky za informaci i za doplnění informací. Toho že je lepší použít vyšší SF jsem si samozřejmě vědom, ale musím říct že podle některých informací by se jeden domníval že LoRa je dobrá maximálně na desítky kilometrů, viz třeba tento obrázek . Zcela proti tomu ale jdou reálně naměřená data z TTNMapper...
by jch
Sat Jan 25, 2020 11:18 am
Forum: Flight Log
Topic: Hvezdarna a planetarium Brno
Replies: 9
Views: 3500

Re: Hvezdarna a planetarium Brno

Můžu se zeptat s jakým nastavením LoRa vysílala? Zajímá mě především spreading factor, bandwidth v rámci EU předpokládám 125 kHz, jelikož nic jiného tu fakticky nejde použít. Snažím se udělat si představu o tom jak moc má SF vliv na dosah komunikace, z toho co jsem zatím četl mám totiž trochu protic...