UMKA-1 telescope satellite mission

I was so excited about SSTV that I didn’t even look at the UmKA-1 telemetry packets

Happy New Year, friends! / S Novym godom, druz’ya!

Message received by me today at 11:38UTC here in Brazil

5 Likes

I’ve checked my recordings, and indeed!
I received it three times today, but not yesterday yet.

3 Likes

Completion of SSTV broadcast from UMKA-1 on January 2, 2025 at 18:42 UTC
Text congratulations broadcast will continue.

5 Likes

I observed RS27S and RS58S yesterday at 13:0x and today at 01:2x UTC for New Year’s holiday transmission in SSTV, but unfortunately heard nothing, no SSTV, no beacons.
However, Observations from SONIKS show SSTV and beacon transmissions.
Do they only transmit over Russian territory?

2 Likes

Daniel, I received both satellites here in Brazil

My first reception of SSTV transmissions were:

MONITOR-3 (RS58S) = 2025-01-04 12:31UTC
UTMN-2 (RS27S) = 2025-01-04 11:09UTC

HyperView-1G (RS66S) is also transmitting SSTV. I have seen some reports of reception in addition to THIS post on the R4UAB website

2 Likes

Tried for both yesterday (04-Jan) on 090x (Monitor-3) and 091x (UTMN-2) passes over UK. Audible heard broadcast from both but very noisy and breaking up. Got a partial decode from UTMN-2 but v. low quality - you get just about make out there is some image there but I’ve no idea what it is really. Monitor-3 triggered a decode on MMSSTV but lost the signal again almost immediately. Possibly better / higher passes tomorrow morning so might try again then.

3 Likes

Found the error.
I cloned a module in Gpredict and put all the currently SSTV transmitting satellites in.
I now noticed that the chosen ground station was not mine. I don’t know how this could change by itself.

I already thought that the passing times are a bit odd.

1 Like

2025-01-06 08:48 1 of 6 RS27S 2025-01-06 08:51 2 of 6 RS27S

2025-01-05 19:42 RS58S 2025-01-06 08:41 RS58S

2025-01-06 08:44 RS58S

4 Likes

05-01-25 19:5x UTC
RS27S

Jomjom79

3 Likes

2025-01-06_21.00.30 Monitor-3


[2025-01-06_21.03.09 Monitor-3

2025-01-06_21.08.05 UTMN-2

2025-01-06_21.10.34 UTMN-2

4 Likes

Hi!
On February 1-2, it is planned to broadcast images using the SSTV protocol from the UMKA-1 RS40S. The broadcast was organized as a sign of respect for the developers and enthusiasts of the MAYAK satellite, which descended from orbit in 16 January 2025.

Transmission starts on February 1, at 07:00 UTC
The transfer ends on February 2 at 18:00 UTC.

SSTV - Robot 36 format
The interval is 120 seconds.
Frequency - 437.625 MHz

Transmission can be interrupted if necessary without prior notice! (temperature rise, battery discharge, etc.)

6 Likes

There is also a text message with congratulations in honor of the celebration of the Chinese New Year. The text broadcast will last until February 9th.

5 Likes

@ra3ppy what baud rate is being used currently, 2400, 4800, or 9600?

9600 bps

2 Likes

2025-02-01 08:45


2025-02-01 08:46

2025-02-01 08:47

2025-02-01 08:50

2025-02-01 08:53

No text messages seen.

4 Likes

This week I have fitted a new antenna inside my roof (prefer it to be outside) its a Dimond X-50 and this it what I have received on the last pass at 22.5 Elev.

I’m only using rg58 cable at the moment but I will replace this with a better quality cable with less losses

3 Likes

My Quadrafilar antenna was not as successful

2 Likes

Hi. The speed of the 9600 almost always remains the same, except in cases of certain events or requests from amateur radio operators to conduct experiments. In this case, the speed can be set to 2400 and 4800 bps. Sometimes UMKA works at 19200 bps (we additionally notified IARU), but these are short-term inclusions.

Hi. I’ll restart it in the evening.

1 Like

Many thanks for the update