2025-08-30_10.11.45 UTC
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Greetings, friends.
As part of the “Umka from Space” program, a transmission of children’s drawings in SSTV format from the UmKA-1 (RS40S) school CubeSat telescope is planned.
Broadcast start: September 20, 2025, 20:20 UTC
Broadcast end: September 21, 2025, 22:11 UTC
Frequency: 437.625 MHz
Mode: Robot36
Interval: Every 94 seconds
Image transmission is possible while passing over the MСС.
Transmission may be interrupted without prior notice if necessary (increased temperature, low battery, etc.)
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thank you for information. very interesting 
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- 2025-09-21 00:57UTC
- 2025-09-21 01:00 (VERY VERY strong ionospheric scintillation)
UmKA-1 over Brazil
!!
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No images on pass 09:3x.
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Good to know. I thought it was just me. Nothing but tlm heard here on same pass.
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Same here 11:00 UTC.
Jomjom79
I will resume broadcasting as soon as I can contact the satellite. I may also repeat the broadcast on Monday.
Thank you for your observation.
4 Likes
same. very faint tlm.
21.09.25
20:22 UTC
Started only 6° above the horizon. Considering all the mountains around here i am amazed it came out that good
20:24 UTC
20:26 UTC
Jomjom79
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very good. what type antenna you used?
I’m using a HB9CV with 3+3 elements (9.5 dBd) with preamp on a rotator in the attic.
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This pass was done with something as basic as my Diamond MR77 mag mount.
Jomjom79
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incredible, with only 6 degree max ? wow