This is a sat database that I actually have missed and seen for the first time today. It is updated daily with GitHub Action and if you would like more information visit the project on GitHub.
Author: SM0TGU
Webmaster and member of the AMSAT-SM steering group.
Categories
RS-38S SSTV 2025-12-05
The RS-38S satellite has turned on it’s SSTV transmission on 437.825 MHz FM Robot 36-mode.
Equipment used:
- RX at 437.825 MHz FM
- 2 x 13 el LFA X-Yagi (InnovAntenna) at horizontal polarisation during this pass
- AlfaSpid RAS az/el rotor
- LNA Mini-70 from SHF Elektronik
- LMR-400 coax
- RTL-SDR v3 via IC-9700 with PTRX-9700 panadapter
- SDR-Console v3 with doppler correction of downlink and satellite tracking, rotor control
- PstRotator for rotor control interface between SDR-Console and RAS controller
- RX-SSTV v2.1.5
- VB-Cable: virtual audio cable for piping audio from SDR Console to RX-SSTV. Set to 96 kHz and 16 bit.
Categories
ARISS News 2025-12-01
Amateurs and others around the world may listen in on contacts between amateurs operating in schools and allowing students to interact with astronauts and cosmonauts aboard the International Space Station. The downlink frequency on which to listen is 145.800 MHz worldwide.
Successful Contacts
South-West State University, Kursk, Russia, direct via UB3WCL.
The ISS callsign was RSØISS.
The crewmember was Sergey Ryzhikov.
The ARISS mentor was A.R.C. ENERGIA, RV3DR.
Contact was successful on Saturday, November 22, 2025 at 14:54 UTC.
Moscow Aviation Institute, Moscow, Russia direct via R2AS.
The ISS callsign was RSØISS.
The crewmember was Oleg Platonov
The ARISS mentor was A.R.C. ENERGIA, RV3DR.
Contact was successful on Mon 2025-11-24 14:56 UTC.
Upcoming Contacts
Lincoln Magnet School, Springfield, Illinois, direct via K9OK.
The ISS callsign is presently scheduled to be NA1SS.
The scheduled crewmember is Jonathan (Jonny) Kim, KJ5HKP.
The ARISS mentor is Charlie Sufana.AJ9N.
Contact is go for Friday, December 5, 2025 at 15:29 UTC.
Russian State Agrarian University – Moscow Agricultural Academy named after K.A. Timiryazev, Moscow, Russia, direct via TBD.
The ISS callsign is presently scheduled to be RSØISS.
The scheduled crewmember is Sergey Kud-Sverchkov.
The ARISS mentor is A.R.C. ENERGIA, RV3DR.
Contact is go for Friday, December 5, 2025 at 11:00 UTC.
- The crossband repeater continues to be active (145.990 MHz up {PL 67} & 437.800 MHz down). If any crewmember is so inclined, all they have to do is pick up the microphone, raise the volume up, and talk on the crossband repeater. So give a listen, you just never know.
- The packet system is also active (145.825 MHz up & down).
- As always, if there is an EVA, a docking, or an undocking; the ARISS radios are turned off as part of the safety protocol.
- Note, all times are approximate. It is recommended that you do your own orbital prediction or start listening about 10 minutes before the listed time.
- The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html .
- The latest list of frequencies in use can be found at https://www.ariss.org/contact-the-iss.html .
[ANS thanks Charlie Sufana, AJ9N, one of the ARISS operation team mentors for the above information.]
Re-post from ANS-327:
Mike Seguin, N1JEz, reports the successful reception of the University of Arizona’s CatSat’s 10 GHz downlink on 10.47 GHz on the morning of November 21, 2025. The satellite’s linear transponder uses 10 GHz down and 5 GHz up. More information is available at https://catsat.arizona.edu/
Mike reports that signals were quite good in FN34xn in Vermont! His next step is to try the uplink on 5 GHz on 5.663 GHz.
Below is a link to a portion of the pass. It is an I&Q file recorded with HDSDR using the Winrad format.
https://drive.google.com/file/d/15cuuhi-U5WDkVjiKHJeuP_argBhH0Cpz/view?usp=drive_link
Congrats to the CatSat team!!
SkyRoof is a Windows application for Hams and satellite enthusiasts by Alex Shovkoplyas VE3NEA.
The main features of SkyRoof are:
- detailed information about all satellites that transmit in the Ham bands;
- satellite tracking in real time;
- pass prediction for the selected satellites;
- visual representation of the current satellite position and future passes, using:
- Sky View – the view of the sky from your location;
- Earth View – the view of the Earth from the satellite;
- Time Line – the satellite passes on the time scale;
- Pass List – the details of the predicted passes;
- SDR-based waterfall display that covers the whole satellite segments on the VHF and UHF bands, with zoom and pan;
- SDR-based SSB/CW/FM receiver with RIT and Doppler tracking;
- audio and I/Q output to external programs via VAC or UDP;
- frequency scale with satellite names and transponder segments, Doppler-corrected;
- CAT control of an external transceiver;
- antenna rotator control.
Download at https://ve3nea.github.io/SkyRoof/
Notes from the AMSAT-SM steering group meeting 2025-11-18:
General meetings:
The guidelines previously stated that a general meeting could be convened if one tenth of the members requested it. In practice, this is impossible to carry out, as it would mean that at least 30 members would have to jointly request a meeting (since we currently have over 300 registered members).
The steering group decided to remove this point from our guidelines.
Audit:
Updated 2025-11-21:
We will continue with Lars SM5TSP as auditor for the time being.
No audit has been carried out since AMSAT-SM was transformed into a group. The steering group therefore decided to set the auditor position to vacant. Part of point 4 in the guidelines has been changed to the following:
“A person outside the steering group may have a role corresponding to an auditor (currently vacant). That person may conduct an audit if needed.”
AMSAT-SM’s finances remain strong, and the balance is about 32,000 SEK. We have extremely few fixed expenses, essentially only the cost of the domain www.amsat.se.
Our guidelines can be found here:
https://www.amsat.se/styrgrupp-riktlinjer/
The steering group consists of:
Satellite Officer SSA, responsible for the HF network
Håkan Harrysson – SM7WSJ
Financial Manager
Inge Björk – SM4JLX
Responsible for information, web, and social media. ARISS contact person
Lars Thunberg – SM0TGU
AMSAT-SM styrgrupp har ikväll (2025-11-19) haft ett kortare möte och beslutat om följande:
Allmänt möte:
I riktlinjerna stod det att allmänt möte kan sammankallas om en tiondel av medlemmarna så kräver. Denna formulering var en rest från AMSAT-SMs gamla föreningsstadgar. I praktiken är detta omöjligt att genomföra då det skulle innebära att minst 30 st medlemmar måste gemensamt kräva ett möte (då vi idag har över 300 registrerade medlemmar).
Styrgruppen beslutade att ta bort denna punkt från våra riktlinjer.
Revision:
Uppdaterat 2025-11-21:
Vi kommer att fortsätta med Lars SM5TSP som revisor tills vidare.
Ingen revision har genomförts sedan AMSAT-SM omvandlades till grupp. Styrgruppen beslutade därför att sätta revisorsposten till vakant. Del av punkt 4 i riktlinjerna har ändrats till följande:
“En person utanför styrgruppen kan ha en roll motsvarande revisor (för närvarande vakant). Den personen kan göra revision vid behov.”
AMSAT-SM ekonomi är fortfarande stark och kassan är på ca 32 000:- Vi har extremt få fasta utgifter, i stort sett endast kostnad för domänen www.amsat.se
Våra riktlinjer finns här:
https://www.amsat.se/styrgrupp-riktlinjer/
Styrgruppen består av:
Satellitfunktionär SSA, ansvarig för HF-nätet
Håkan Harrysson – SM7WSJ
Ekonomiansvarig
Inge Björk – SM4JLX
Ansvarig för information, web och sociala medier. ARISS kontaktperson
Lars Thunberg – SM0TGU
73 från styrgruppen i AMSAT-SM
www.amsat.se