USB dongle na rtl2832u+r820t - czyli nie tylko DVB-T

#331

Tym razem niestety też lipa:

#332

Jeszcze jedna szansa:
"Friday, October 2, 2020
ARISS Satellite SSTV planned for October 4-8

An ARISS worldwide SSTV event is scheduled from the International Space Station during the period of October 4-8. Dates and times could vary due to ISS operational changes.

Images will be downlinked at 145.8 MHz in the expected SSTV mode of operation is PD 120. The main theme of this collection of images will be Satellites. Radio enthusiasts participating in the event can post and view images on the ARISS SSTV Gallery at https://www.spaceflightsoftware.com/ARISS_SSTV/ .

After your image is posted at the gallery, you can acquire a special award by linking to https://ariss.pzk.org.pl/sstv/ and follow directions for submitting a digital copy of your received image.

Update Oct 2

Seems the delays in launches may have shifted planning for the start of SSTV. It appears it might start a day earlier (October 3).

Update Oct 5

Seems the Russian team paused ARISS SSTV imagery today (Oct 5) while NG-14 arrival activities occur today. SSTV should resume after 18:45 UTC. "

stalker · #333

Czy ktoś będący w zasięgu MUX5 może sprawdzić czy widać sygnał DVB-T2 HEVC na widmie, np. w SDRSharp?

#334

Będzie widać na widmie tak jak DVB-T. Niestety nie jestem w zasięgu MUX-5

#335

Będzie jeszcze jedna okazja do zabawy z SSTV z ISS:
"Friday, December 11, 2020
ARISS 20 years of operations on ISS (SSTV event)

An ARISS Slow Scan TV (SSTV) event is scheduled from the International Space Station (ISS) for late December. This will be a special SSTV event to celebrate the 20th anniversary of ARISS operations on the ISS. The event is scheduled to begin on December 24 and continue through December 31. Details to follow later. Dates are subject to change due to ISS operational adjustments."

#336

"***Update (Dec 21) - times for the event appear to have the activity being setup and starting after 16:40 UTC on December 24 and running continuously until 18:15 UTC on December 31."

#337

"Tuesday, January 19, 2021
MAI-SSTV experiment Jan 28 and 29

Moscow Aviation Institute will be operating SSTV for a few passes that overfly Moscow on Jan 28 and 29. It is anticipated this will be the recent used PD-120 mode and will be on the 145.800 MHz.

Times for the experiment are currently scheduled as follows:

Jan 28 - Setup starts at 12:10 UTC and transmissions stop at 17:15 UTC

Jan 29 - Transmissions start at 13:10 and experiment concludes at 18:05 UTC"

#338

"Thursday, May 27, 2021
MAI-75 SSTV June 9 and 10

MAI-75 will be conducting their experiment of transmitting SSTV images over specific orbits that overfly Moscow on June 9 and 10. Amateurs along the ground track of these orbits should have the opportunity to receive these images as well. Modes and targeted transmission periods are listed below.

SSTV images will be transmitted at 145.800 MHz using a Kenwood TM-D710 transceiver. They are expected to use the PD-120 SSTV format .

Schedule:

June 09, 2021 (Wednesday) - from ~ 09:35 UTC until 13:45 UTC (time may change).
June 10, 2021 (Thursday) - from ~ 08:55 UTC until 14:25 UTC (times may change).

Thanks to R4UAB for the initial info."

stalker · #339

Może ktoś z Was bawił się w dekodowanie ramek z samolotów przerzucanych przez Inmarsata w paśmie C?
http://thebaldgeek.net/index.php/2019/0 ... lite-adsb/
https://jontio.zapto.org/hda1/c-band-ads-decoding.html

Chętnie poznam wymagania, tj. offset czy parabola? Jaka minimalna średnica? Jaki konwerter? Korzystamy z 64E czy jednak z 25E?
https://www.satbeams.com/satellites?norad=39215 - tu jakby nie ma C.
https://www.satbeams.com/satellites?norad=28899 - tu też nic o paśmie C nie piszą.

#340

@stalker ja się bawiłem. Działa. Użyłem Kaonsata 13k premium. Karty prof 7301. Dongiel rtl sdr v3 podłączony do wyjścia loop karty. Testowalem na 180cm i sygnały na Inmarsacie z 14-15W były dość mocne. Dane z Jaero idą do Virtual Radar Server i tam mamy samoloty na mapie. Pozostałych innych wiadomości jest dużo dużo więcej niż na L Band.

Dodam ze lepiej jest miec konwerter C z PLL. Na Kaonsacie częstotliwości pływały i trzeba było je "ganiać" w SDR#

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