SIGMA Cubesat communication

With already more than two days since launch, now we are trying to hear it.
It is very appreciated if you get any contact with SIGMA.
We would like to need your help to get the beacon signal.


  • Band: UHF
  • Frequency: 435.780 MHz
  • Modulation: BPSK
  • Baud rate: 9600 bps
  • User guide & GS software & Updated TLE


If you have any question, please let us know.

If you get any data, Could you send us?


Thank you in advance
SIGMA team


Do you have any further informations what’s going on with that Sat? I have scheduled some observations on #37.

Nothing so far…

It has been launched for 3 days, we think lot of scenario what is going on with SIGMA. We are still hearing from the SIGMA to get the beacon. I thank you to get beacon of SIGMA.

SIGMA beacon consists of 90 sec. During 30 sec, beacon signal is sent every second and then, 60 sec has a break.

Did you get any beacon so far?

Not yet, We still try to get the beacon using our ground station.

Could you please double check the beacon frequency you provided here in your first post?

I apologise for being wrong Frequency. It is 435.780 MHz. i am sorry for making confuse.

This might be a false positive, but please check the audio file with your telemetry Decoder:

You can find any scheduled observations of SIGMA at:

Please report if you were successfull!

Fingers crossed!

oops this was copy paste error of the link, the right false possitive is: