Hello everyone! Here are some new satellites in amateur band coming, that you could possibly listen to. All of the following satellites use GMSK modulation, USP FEC protocol, 2400 bitrate. Corresponding preliminary TLEs are in links below.
For decoding signals under Windows a soundmodem tool can be used and a quick guide here. Also you could try a flowgraph and USP FEC info with Ubuntu 20.04+ with gnuradio 3.8. It wasn`t changed since last launch.
You can look for more information and tools here in updated topic.
Can you point to IARU frequency coordination information for these launches?
How does the amateur radio community benefit from these launches? It’s sounding more like the Sputnix “Private Space Company” benefits more than the community does here.
Satellites have been added in DB. From a quick look, it doesn’t seem they have IARU coordination, so their transmitter will be added as violators in DB.
What content will be broadcast in X-band?
Will it be DVB-S2? With what parameters? Will it be video? Or maybe files ?
Will it be possible to decode the data ?
Thanks a lot for advices! We`ll try to point information about spacecrafts to IARU soon.
All of these satellites are created as the universities initiative, so they actually are not owned by Sputnix company. After succesfull reception of satellite signal, you could request a QSL card from corresponding university as usual. Talking about amateur radio benefits, we probably could try to increase amount of opened telemetry messages and satellite data, for your interest. In previous launch there was a talk about dashboards and kaitai structs. If you are still interested in gathering satellite data, we could give you generated kaitai, which describes satellite beacon.
About X-band. Yes, protocol is DVB-S2 file transfer (photos for now) over GSE, QPSK modulation, FEC 9/10, 1Msps. But the truth is, there is only one X station, which could be used to receive data and it is located near Moscow, so we are not going to turn on the transmitter on other coordinates yet. If there will be further transmissions on other locations, we could give more information about receiving data
For those to happen the satellites will need to be coordinated. Can you please provide more information about the coordination status of those satellites?
Unfortunately, as I could know, no one has sent information to IARU directly. But satellite frequencies and callsigns were registered at the local frequency registration center.
Probably, we have a TLE miscalculation, updated TLE is coming soon.
In that case and since there is no information on ITU either, all those satellites will be considered as violators in our DB and flagged appropriately. We take frequency coordination very seriously and will not be able to support those missions.
In addition to regulations, for non-compliance with which violators are subject to appropriate sanctions by the relevant state bodies, radio amateurs have ethical standards , non-compliance with which is not punished by the state, but is condemned by the amateur radio community, which is a self-regulatory organization. The Union of Radio Amateurs of Russia strongly recommends that you study these nomes and adhere to them.
Of course, it can be changed. But as I just found out, we spoke to satellite owners about coordination repeatedly, but all of them did not do it. And it is extremly sad, so I hope they will change their mind.
TLE have been updated in DB and Network. For GEOSCAN-EDELVEIS and KAI 1, I have used TLE set of SXC3-219 and of SXC3-216 respectively. Here are the TLE sets using the temporary NORAD IDs:
