AMSAT-India participated in Somaiya Space Conclave 2020

AMSAT-India at Somaiya Space Conclave 2020Somaiya Space Conclave 2020 was organised by KJ Somaiya Institute of Engineering and Information Technology – Mumbai, India on Friday, February 28, 2020.

Rajesh Vagadia VU2EXP reports:

It was a full day event covering topics related to Students Satellite program, Amateur Satellites, PS4 Orbiting Platform program, Design & Development of Nano Satellites etc.
AMSAT-INDIA was invited along with prominent speakers from ISRO & Satellite industries.

Myself Rajesh Vagadia VU2EXP, (Regional Coordinator for West India Zone) represented AMSAT-INDIA. I did introduced AMSAT-INDIA & it’s activities, along with Amateur Satellite Development scenario in India. I talked on HAMSAT, AISAT, role of ITU (API Submission), IARU (frequency allocation) etc procedure in brief for students satellite program. Some highlights were given on Satellite Ground station / Amateur Club station requirement. At last gave info on ARISS program & gave live Demo of SSTV over VHF which turnout as fun for all.

More than 60 curious Students including few budding team for Satellite program participated from different institutions and gained knowledge on various topics. Students from IIT Bombay shared their sensible experience on their Pratham satellite.

I am thankful to our AMSAT-INDIA Secretary Nitin Muttin VU3TYG for all technical support & Coordinating with organisers. I also thanks to Dr. Umesh Shinde, Mr. Rohit Bokade, Supriya Bhide, Siddharth & whole volunteer team for great cooperation & support.

It was remarkable event for all of us to gain & share knowledge, meet & discuss on single subject SATELLITES!

thanks & 73

Rajesh P. Vagadia VU2EXP
Regional Coordinator
West India Zone
AMSAT-INDIA
http://www.amsatindia.org/

Live Amateur Radio Satellite Demo for Physics Students

Group photo at campus

Group photo at campus

Rajesh Vagadia VU2EXP reports a Special Hands on Workshop of Applied Physics was organised at well-known School of Science – RK University, Rajkot (Gujarat), India

It was 5 day event from 2nd Dec to 6th Dec 2019.

50 final year B.Sc Physics Students from various Colleges across state of Gujarat were registered for this special program.

Rajesh Vagadia VU2EXP gives an introduction to Amateur Radio

Rajesh Vagadia VU2EXP gives an introduction to Amateur Radio

On 4th December 2019, Rajesh Vagadia VU2EXP (Regional Coordinator of AMSAT-INDIA) conducted detailed presentation on Ham Radio & its Application along with Live Satellite Demo amongst 50 students & faculties.

In beginning I gave complete overview of Ham radio hobby ranging from CW to Satellites!

My presentation Included operating procedure & protocols, various ham events, different modes incl CW, SSB, FM, Digital, SSTV, APRS. Licensing procedure & ASOC exam syllabus was covered. For practical observing collection of radio stuff were displayed incl antennas, accessories, CubeSat model, SDR Dongle, VHF Base, HTs, PSU, Morse Keyer, Paddle, QSL Cards, ARISS Awards etc. And of course my homebrewed IOio Sat Antenna.

AMSAT functioning & its motto was explained in detailed. Few amateur satellites were bring into notice made or supported by various AMSAT organisations.

ARISS student outreach program highlights were also given & played original audio conversation happened between 13 year Student (Sakshi Vagadia) and female Astronaut Sunita Williams aboard ISS, particular ARISS event was carried out on 14th Nov 2012 at Science City Ahmedabad Gujarat by we few hams. Below is the link to enjoy conversation
https://tinyurl.com/sakshi-talks-sunita

Students surprised to see scientific capabilities of ham radio reaches up to ISS Astronauts & even further to moon with EME experiments!

Lots of queries were raised on different topics throughout the session, and students as well as faculties were satisfied with the given answers. I always encourage students to raise query at any point of time and get immediate reply 🙂

VHF voice demonstration

VHF voice demonstration

Thereafter Students also enjoyed practical Demos as below:

• Students find it funny to learn Sound act as a language during Morse code demo with my keyer & paddle.

• VHF Voice demo was given by making 3 groups and students introduce each other with Radio, simple HT created more excitement amongst students who used to carry expensive iphones, hi..

• For APRS Demo a prior information were shared to University administration & students to track my QTH to Venue journey on https://aprs.fi with Callsign (SSID) VU2EXP-10. To my own surprise group of Faculties stepped out to welcome me exactly on arrival of my car at Campus! Infact everybody were live tracking my journey on APRS!

• Star attraction was for Live Satellite Demo amongst group of students. Tiny cubsat AO91 was preferred for demo considering elevation of 44° & AOS Time 1247 (IST). Demo was previously announced to get support of Ham community. All students, faculties and admins get assembled 15 minutes prior to AOS at terrace of the building. There were no obstacles or tall buildings in any side.

I made students familiar with important Satellite terms such as AOS, TCA, LOS, Uplink Freq, Downlink Freq, Doppler shift, Tracking with apps etc. I used IOio dual band antenna with two separate HTs. Necessary frequency & tx ctcss tone was set & tested before pass. For Tx Speaker Mic was used for convenience, and for Rx small PA was connected to HT so whole group can listen to our possible two way QSO. I was prepared aiming IOio antenna at 180° (South), on AOS time at 1247 (IST) I gave few Sat calls… De VU2EXP on AO91 Satellite… repeat… soon heard a station replying me!!! Cheers!!!

Initially his signal was fading, but finally we establish 1st Satellite QSO, it was VU3PEN from Hyderabad (MK97em) 955 Kms from us. Students can’t stop their excitement and started cheering up!!!

Soon we worked 2nd station with VU3BXS from Haryana (MM80pd) 1083 Kms away.

To our surprise 3rd contact was made with DX station A65BP from UAE (LL75qj) 1602 Kms away.

4th contact was with VU2DGR from Kerala (MJ89gg) 1576 Kms away from us.

Now we were near to LOS at NNW direction and at low elevation we heard 5th station, mostly it was R9LR (MO27qf) 3907 Kms away, I gave repeated call but two way contact was not established. Students were very excited to learn such things & just thrilled to witness live SatDemo. Many new queries were answered on SatCom and we had memorable group photo in terrace too.

My session was extended to 4 hours for presentation & various demos.

I am thankful to VU3PEN, VU3BXS, A65BP, VU2DGR & R9LR for extending valuable support for my demo activities. This was my first Live Satellite Demo (AO91) amongst group of students & faculties who all keenly enjoyed whole session.

I also thanks Prof. Harshal Desai, Dr. Savan Katba (Coordinator), Dr. Ashish Tanna (HOD Physics) & School of Science RK University Rajkot to give me wonderful platform to conduct this memorable Ham Session with Live Demos.

Best 73’s

Rajesh Vagadia VU2EXP
Rajkot – Gujarat
Regional Coordinator
West India Zone
AMSAT-INDIA
M: 9898283916
E: vu2exp@gmail.com
http://www.qrz.com/db/vu2exp

Whole group witness live satellite demonstration

Whole group witness live satellite demonstration

University students shown amateur radio

VHF demonstration by Rajesh Vagadia VU2EXP

VHF demonstration by Rajesh Vagadia VU2EXP

AMSAT-India Regional Coordinator Rajesh Vagadia VU2EXP reports on the ‘Ham Radio – Practical Insight’ session given to 150 students at Parul University.

Wonderful hands on session on ‘Ham Radio – Practical Insight’ was conducted at prestigious Parul University – Baroda (Gujarat, India) on September 8, 2016. Around 150 Engineering (EC) student & faculties participated in the program & gain knowledge on the subject.

Faculty member making a 145 MHz FM contact

Faculty member making a 145 MHz FM contact

In-depth Presentation on Ham Radio, Interesting Ham Radio Events, Video Documentary & SSTV Live demo was carried out by Rajesh Vagadia VU2EXP. Students were excited to see line by line SSTV transmission on the projected screen. To learn with fun, students were allowed to make collective noise during transmission to observe their effect in the SSTV reception!!!

Number of technical & general queries satisfied in Q&A session. Sunny VU2PMU Shared his Ham Experience & Sardool VU2OPX Selected few student with small Quiz.

VHF Demo (Modulation test) was nicely carried out by GIAR team member Ankit VU3NMQ, Sardool VU2OPX, Sunny VU2PMU & myself. Student & faculties learnt the potential of Ham Radio hobby & enjoyed the event at the fullest.

I thank my fellow hams for their kind support and also thankful to Prof. Jay Patel & Prof. Niraj Tever from Parul University to nicely coordinate the event.

Wish this Ham event act as small SPARK (ignition) & in future some of the student may fly high in World of Amateur Radio!

Thanks & 73’s

VU2EXP
Rajesh P. Vagadia – (Rajkot – INDIA)
Regional Coordinator
West India Zone
AMSAT-India http://amsatindia.org/

Some of the students at Ham Radio Practical Insight session at Parul University

Some of the students at Ham Radio Practical Insight session at Parul University

AMSAT-India VO-52 satellite completes eight years in orbit

HAMSAT VO-52

HAMSAT VO-52

On Sunday, May 5, 2013 AMSAT-India’s VO-52 completed 8 years in orbit. During this time it has proved to be a valuable communications resource for the amateur radio community.

Mani, VU2WMY, posted this on the AMSAT Bulletin Board:

It gives us great and immense pleasure to say that ‘HAMSAT VO-52’ completes eight fruitful years in orbit contributing to the wonderful cause of ‘Amateur Radio Satellite Communication’.

The overall health parameters are excellent and we do hope that transponder(s) on-board ‘HAMSAT VO-52’ would continue to render good services for many more years to come.

On this joyous occasion,on behalf of everyone here in ISRO/India and on my personal behalf, I thank each and every user, contributors and well wishers for this great achievement.

Special thanks to Guru VU2GUR, Nitin VU3TYG, Partha VU2GPS,Sunil VU2UKR,Bob W7LRD, Trevor M5AKA and others for sending in their reports and suggestions for the possible HAMSAT 2.

73 es good wishes de

Mani, VU2WMY
Secretary & Station-In-Charge
Upagrah Amateur Radio Club VU2URC
ISRO Satellite Centre

How to make contacts through the VO-52 satellite
https://amsat-uk.org/beginners/how-to-work-the-ssb-satellites/

Getting started on Amateur Radio satellites
https://amsat-uk.org/beginners/radcom-getting-started-on-satellites/

2005 – HAMSAT launch was 100% successful
http://www.southgatearc.org/news/may2005/hamsat_update2.htm

AMSAT-India http://www.amsatindia.org/

HAMSAT VO-52 Dutch Transponder Activated

VO-52 on FUNcube Dongle by Dave G4DPZ

VO-52 received on an AMSAT-UK FUNcube Dongle by Dave Johnson G4DPZ during the 17:27 pass on March 14, 2012

The Dutch SSB/CW linear transponder on the AMSAT-India amateur radio satellite HAMSAT VO-52 has been successfully activated.

Transponder # 1, which had been operating for over 6 years, fell silent on February 28 and efforts have been underway to activate transponder # 2.

Mani VU2WMY reports that the commands to ‘Turn On’ the transponder # 2 on-board HAMSAT VO-52 were successfully sent on March 14 during the 1400 UT 35 deg ascending Node pass over Bangalore, India.

The commands were successful and the CW message beacon of the Dutch transponder # 2, built by William Leijenaar PE1RAH, was heard in Bangalore loud and clear, some 6 years and 4 months since it was last switched on.

The Dutch SSB/CW transponder uses these frequencies:
Uplink:         435.2250 – 435.2750 MHz SSB/CW
Downlink:     145.9250 – 145.8750 MHz SSB/CW
Beacon:       145.8600 MHz CW

When working through linear transponder satellites such as VO-52 use as little power as possible, this will help extend the lifetime of the transponder and satellite batteries. As a guide ensure your downlink signal is no stronger than the satellite beacon. Low duty cycle modes such as SSB and CW are recommended.

How to work the SSB satellites such as VO-52 http://www.uk.amsat.org/2712

AMSAT-India Thanks You http://www.uk.amsat.org/5777

HAMSAT VO-52 Activation Planned For Wednesday http://www.uk.amsat.org/5685

HAMSAT VO-52 Falls Silent http://www.uk.amsat.org/5217

Leijenaar Electronics http://www.leijenaarelectronics.nl/

AMSAT-India http://www.amsatindia.org/