UMKA-1 telescope satellite mission

The satellite is apparently transmitting at this moment (I still don’t have confirmations about dates and times)

(I was just talking to Aleksey @ra3ppy a few minutes ago and I hadn’t realized that the transmissions are about International Women’s Day)

He told me that he is returning from his trip at the moment, but within two hours a publication should be published on the ON AIR Telegram Channel (Access the Telegram channel HERE)

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Thanks for update. Just missed a pass :frowning: but I will try in the morning

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On March 8–9, 2025, a broadcast of images via SSTV protocol from the small spacecraft (SSC) “UMKA-1 (RS40S)” is planned. This special broadcast is timed to coincide with two important dates at once: International Women’s Day on March 8 and the birthday of the first cosmonaut on the planet, Yuri Alekseyevich Gagarin (March 9, 1934).

A special QSL card will be available for receiving these images. To receive it, you need to send one received image to umka1@school29.com, indicating the date, time and place of reception (QTH).

SSTV transmission schedule of the MKA “UMKA-1 (RS40S)”:

  • Transmission start: March 7, 2025 at ~20:50 UTC.
  • Transmission end: March 09, 2025 at ~18:00 UTC.

Format - SSTV Robot 36
Interval between transmissions 84 seconds (may be adjusted later).

Frequency of MKA “UMKA-1 (RS40S)”

  • 437.625 MHz GMSK 2k4 USP FEC, GMSK 4k8 USP FEC, GMSK 9k6 USP FEC, SSTV;

All details on the R4UAB website (See HERE)

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Received on the 22:22UTC pass over Madrid Spain

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UmKA-1 over Brazil :brazil: !!

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2025-03-08 08:17

2025-03-08 08:20

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08-03-25

11:49 UTC

11:51 UTC

Jomjom79

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08.03.2025 10:48UTC



Strong signal, but also some strong interferences.
UMKA disappeared behind a mountain on the second image.

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Hello everyone.
Sorry for not informing you earlier, there were difficulties with entering this page. The transmission of images will continue until March 9, 17:20 utc.
During the evening passage of the satellite over Eastern Europe, a short-term shutdown of the transmission is possible to update the images with a restart of the schedule.

Have a nice weekend and a spring mood! 73!

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2025-03-08 20:38

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8th March 20.38UTC

8th March 20:40UTC

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:bangbang: UmKA-1 without SSTV on last pass over Brazil (2025-03-09 ~01:01UTC)

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09.03.2025 09:42UTC


Great reception today!

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UmKA-1 with Max El 5.5° for my QHT here in Brazil :brazil: !!

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Hello everyone.
We received about three hundred messages during the broadcast period on March 8-9. It will take time to process all the messages. I think within two weeks.
Thanks for participating! 73!

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About 300 messages and luckily only 6 people showing their received images here on the forum.

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2025-03-09_20.26.32 UTC

2025-03-09_20.28.32 UTC

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International women’s day eqsl just landed in my inbox. Thanks to @ra3ppy and the team for the qsl and activation.

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Got it, too.

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