Amateur Radio, Satellite Communication, AMSAT-INDIA coordinator, ARSI Coordinator, Science educator, Digital modes, APRS, ISS/ARISS Fan
Rajkot (India)
Joined January 2016
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VU2EXP retweeted
How to setup a TinyGS station
amsat.se/2025/12/09/how-to-s…
#amsat
TinyGS @tiny__GS is an open network of Ground Stations distributed around the world to receive and operate LoRa satellites, weathe...
VU2EXP retweeted
Privileged to witness the inauguration of Skyroot Aerospace’s Infinity facility and the unveiling of the Vikram-1 rocket. In just a short while, Vikram-1 will script history as the first Indian private-sector rocket to reach orbit — a moment where ambition quite literally leaves the ground.
This isn’t just a milestone for Skyroot Aerospace; it’s a defining leap for India’s space ecosystem. Heartiest congratulations to the entire @SkyrootA team for turning bold vision into launch-ready reality.
#space #shux #india #skyroot #vikram1 #shubhanshushukla #bharat
VU2EXP retweeted
Great to read this article on Forbes online - #amateurradio is very much alive and the magic is there for the taking!
What makes amateur radio special for you?
👀Read the article 👉 forbes.com/sites/jimclash/20…
#hamr #hamradio
VU2EXP retweeted
Flying humans to space is one of the riskiest jobs there is — so a huge amount of effort goes into risk assessment and mitigation before any crewed mission.
That idea of “making a rocket safe for people” (a process called human-rating) began with early experimental aircraft and test flights, and then carried over into human spaceflight.
Essentially, human-rating means a system must:
1.Accommodate human needs (life support, habitability) - What the vehicle can give to Crew?
2.Utilise human capabilities (control systems, interfaces) - What the crew can give to the Vehicle?
3.Preserve the crew (safety, abort/escape systems) - Safety of the crew
These requirements span hardware (vehicle, life support, abort systems) and operations (procedures, mission-management, human performance).
NASA today uses standards such as NASA‑STD‑3001 and NASA‑STD‑8719.29 to codify these requirements.
For example: the vehicle must tolerate failures (fault-tolerance), must include an abort or safe return option for the crew, and the whole space-system (including ground operations) must systematically manage risks.
And yes — human-rating evolved over time, not just in hardware but also in how missions are managed and operations are conducted. These are not just a set of technical requirements but adoption of a whole new mindset for conducting human missions.
#shux #space #shubhanshushukla #isro #nasa #gaganyaan #india
VU2EXP retweeted
Double success for today's contact with scouts in the UK!
22 kid questions asked and answered, and they were able to see @JonnyKimUSA live on station via HamTV.
Thanks to SP5LOT for sharing this HamTV capture on YouTube:
youtube.com/watch?v=7c-rFdr0…
VU2EXP retweeted
What an unforgettable morning!
Congratulations to everyone involved in a successful contact between the International Space Station and the @Scouts 👏👏👏
The children did brilliantly with 22 questions answered by Astronaut Jonathan "Jonny" Kim KJ5HKP - they even got to see Jonny via HamTV - the first time this has been done since 2018 🙌
#amateurradio #hamr @AmsatUK @ARISS_Intl
VU2EXP retweeted
That’s the power of Ham Radio — it doesn’t just transmit signals, it transmits dreams.
These Hams aren’t just pursuing a hobby; they’re helping the future of India learn to fly.
This is VU2TNI, over and out.
#HamRadio #HAMFEST2025 #shux #space #axiom4 #shubhanshushukla #isro #india
VU2EXP retweeted
On behalf of AMSAT INDIA happy to share Astronaut Group Captain Shubhanshu Shukla , Shukx , VU2TNI will be special guest at HAMFEST INDIA 2025 at GOA on October 11th 2025. He will talk about his experience onboard the ISS during the Axiom Ax-4 mission and the scheduled ARISS contacts he had with students in India and enabling Amateur Radio on Indian Spaceflight missions in the future.
hfi2025.in
hfi2025.in/amsatindia.html
hfi2025.in/Space-for-All.pdf
#HAMFEST,#AMSAT
@ARISS_Intl @amsatindia @AstroPeggy @gagan_shux
VU2EXP retweeted
NISAR is mounted. GSLV-F16 systems checked. Liftoff in 2 days!
Join us LIVE as GSLV-F16 lifts NISAR into orbit.
🗓️ July 30, 2025
Live from: 17:10 Hours
Liftoff at : 17:40 Hours
Link:
youtube.com/live/OgC1MxtCwq4
For more information:
isro.gov.in/Mission_GSLVF16_…
#NISAR #GSLVF16 #ISRO #NASA
VU2EXP retweeted
Here's a quick guide to this weekend's upcoming activities via the ARISS radio on the Space Station.
That includes three #Ax4 contacts and a 19 hour planned radio outage.
ALT The ARISS July 4-6 activities include three Axiom Space Ax-4 contacts and a radio outage. On Friday, July 4, at 08:21 UTC (4:41 AM ET), Stawosz Uznanski-Wisnewski (SQ7AS) from the University of Wroclaw, Poland, will have a contact via K6DUE telebridge. At 10:17 UTC (6:17 AM ET), Shubhanshu Shukla (VU2TNi) from the URSC in India will have a contact via K6DUE telebridge. On Saturday, July 5, at 09:28 UTC (5:28 AM ET), Stawosz Uznanski-Wisnewski (SQ7AS) will contact Rzeszow University of Technology via K6DUE telebridge. At 15:50 UTC (11:50 AM ET), the ARISS crossband voice repeater will power off for Progress operations, with restoration expected on Sunday, July 6, at 10:05 UTC (6:05 AM ET). Times/events are subject to change.
VU2EXP retweeted
Presidents of IARU Region 1 Sylvain F4GKR, IARU Tim VE6SH, IARU Region 2 George VE3YV and IARU Region 3 Wisnu YB0AZ celebrating 100 years of IARU in Paris today
VU2EXP retweeted
Indian Astronaut designates have received their Amateur Radio Licence. Congratulations !!
VU2EXP retweeted
This Saturday is the International Day of Human Space Flight, so we've called our ham radio SSTV event, "Humans in Space."
Start listening for transmissions on Friday 11-April around 17:00 UTC | 1:00 PM ET on 145.800 MHz.
ALT SSTV Series 26: Humans in Space April 12 is The International Day of Human Space Flight, so, what better theme for the April 11-16 transmissions. Experiment Notes: • On the ISS: Service Module Radio Call Sign: RSØISS Frequency: 145.800 MHz Mode: PD120 • Times: Start: Planned for Fri. 17:00 UTC | 1:00 PM ET End: Planned for Wed. 14:30 UTC | 10:30 AM ET • Images in series: 12 • Image Gallery / Awards Send your decoded images to ARISS in the "Series 26" area and apply for an award at: https://ariss-usa.org/ARISS_SSTV/ Watch ARISS Social Media (@ariss_intl) for official updates
VU2EXP retweeted
Atmospheric Re-entry of POEM-4
On December 30, 2024, ISRO’s PSLV-C60 launched twin SPADEX satellites and after injecting satellites at 475 km altitude, the specially configured upper stage (PS4) of PSLV-C60 (called PSLV Orbital Experimental Module in short POEM-4) was also almost in the same orbit. Subsequently, POEM-4 was de-orbited by engine restarts to a nearly circular orbit at 350 km altitude with 55.2 degree inclination. PS4 was then passivated by venting the leftover fuel to minimise any potential risk for accidental break-up. During its mission life, POEM-4 hosted altogether 24 payloads (14 payloads from ISRO and 10 from various NGEs) and all payloads worked as expected yielding valuable science data.
While the POEM-4 was in orbit, it was continuously tracked by ISRO’s Radar Facilities and United States Space Command (USSPACECOM) facilities as well. The tracking data was in turn utilised in the re-entry prediction process. It was observed that POEM-4’s orbit had decayed to 174 km x165 km and the platform was predicted to re-enter the Earth’s atmosphere on April 04, 2025.
The atmospheric re-entry event of POEM-4 was then closely monitored by ISRO System for Safe and Sustainable Space Operations Management (IS4OM) and regular updates in predictions were made. Finally, the POEM-4 module re-entered the atmosphere and impacted at 02:33 UTC (08:03 IST), April 04, 2025, in the Indian Ocean. The safe re-entry of POEM-4 is yet another accomplishment to ISRO’s commitment to contain the growth of space debris, reaffirming the prominent role of ISRO in the long-term sustainability of outer space environment and Debris Free Space Mission (DFSM).
Image: Final traces of POEM-4
VU2EXP retweeted
Icom’s IC-705 is out of this world! @ARISS_Intl is making history again. Astronaut Rabea Rogge (LB9NJ Norway; KD3AID USA) made contact using the IC-705 during the Fram2 mission. More info: loom.ly/8J9SY28
#FortheLoveofHamRadio #ARISS #Space #Astronaut #Fram2
