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

WRC-19 Day 9 and 10: Satellites, 50 MHz and 1240-1300 MHz

RSGB Spectrum Forum Chair Murray G6JYB talking to delegates at WRC-19

RSGB Spectrum Forum Chair Murray G6JYB talking to delegates at WRC-19

The RSGB have released a report on days 9 and 10 of the 2019 World Radiocommunication Conference being held in Sharm el-Sheikh, Egypt from October 28 to November 22, 2019.

The report covers Satellites, HF (7 MHz), a proposed 50 MHz band for the Amateur Service only (not Satellites) and Future Agenda Items including the 1240-1300 MHz band where a number of countries wish to restrict (or remove) amateur radio operation to “protect” GNSS servces. Both the European Galileo (due for completion 2020) and Japan’s Quasi-Zenith (QZSS) (due for completion 2023) GNSS systems have downlinks that transmit across 1260-1300 MHz.

Read the RSGB report at https://rsgb.org/main/blog/news/gb2rs/2019/11/10/wrc-19-day-10-halfway-there/

Read the RSGB WRC-19 updates at https://rsgb.org/main/blog/category/news/special-focus/wrc-19/

IARU Region 1 WRC-19 Week 2 report https://www.iaru-r1.org/index.php/174-news/latest-news/1914-wrc-19-week-2

IARU WRC-19 News http://www.iaru.org/news–events

CEPT ECC Report covers the key Agenda Item 1.1 on a 50 MHz Amateur Service band in ITU Region 1 – but not for the Amateur-Satellite Service
https://www.cept.org/ecc/groups/ecc/cpg/client/introduction/weekly-report-from-wrc-19

New French CEPT paper still seeks 144-146 MHz for Aeronautical

CEPT LogoThe French administration has renewed its attack on the Amateur Radio 144-146 MHz band ahead of a key CEPT ECC CPG meeting in Ankara, August 26-30.

In a paper to be considered at the conference the French Administration says it is not at this time seeking Primary status for the Aeronautical Mobile Service in 144-146, however, their intent is still that the Aeronautical Mobile Service should share the amateur 2m band.

It is clear where such sharing would inevitably lead, amateur operation in the band would only be tolerated if there were no interference to Aeronautical Mobile. Radio Amateurs might be subject to heavy restriction and low EIRP limits.

We can get on idea of France’s long term intent for 144 MHz from their attitude to the 1240-1300 MHz band. It was initially said the Galileo constellation could amicably share this allocation and amateur operation could continue but now France says “unregulated use of the band 1240-1300 MHz by the amateur service is a serious source of harmful interference to RNSS receivers.”
See https://amsat-uk.org/2019/08/19/threat-to-amateur-radio-23cm-band/

The French paper CPG(19)137 F – AI10 – Non safety AMS-background information is at
https://www.cept.org/Documents/cpg/53024/cpg-19-137_f-ai10-non-safety-ams-backgroud-information

Read the IARU paper – CPG(19)115_IARU – AI10 – View on 144-146 MHz under B10-2
https://www.cept.org/Documents/cpg/52931/cpg-19-115_iaru-ai10-view-on-144-146-mhz-under-b10-2

Read the Save 2 Meter story – French administration strikes back at IARU at
https://www.save2m.org/2019/08/french-administration-strikes-back-at-iaru/

Follow Save 2 Meter at https://twitter.com/Save2Meter

Other Ankara meeting documents are at
https://cept.org/ecc/groups/ecc/cpg/client/meeting-documents/?flid=10031

19th Global Symposium for Regulators

ITU-D 19th Global Symposium for RegulatorsSmall-Satellites, High Altitude Platform Stations (HAPS) and 47 GHz were among the topics discussed at the ITU-D 19th Global Symposium for Regulators in Port Vila, Vanuata, July 9-12.

The background paper ‘Preparing for WRC-19 – Understanding the issues at stake and the impact of decisions to be made’ was among the meeting documents in which 47.0-47.2 GHz is noted as one of the candidate bands for IMT-2020 (International Mobile Telecommunications) and 47.2-47.5 GHz for HAPS.

Regarding Small-Satellites the document says:

At WRC-15, a proposal for a new agenda item for WRC-19 “to consider modifications to the regulatory procedures for notifying satellite networks to accommodate nanosatellite and picosatellite missions” was submitted. WRC-15 decided not to include this as a specific item on the WRC-19 agenda, because it concluded that this matter could best be dealt with by the ITU-R under the standing WRC agenda item 7.

Considering that the size of a satellite is independent of the nature of the service that it is intended to provide, a simplified regulatory regime needs to be developed for non-GSO satellites with short-duration missions, independent of the size of the satellite.

and

Furthermore, it is important to ensure that any satellite radio-frequency operation avoids harmful interference to incumbent and authorized systems and services. The two frequency bands below 1 GHz under consideration for new or upgraded allocation to the SOS (150.05-174 MHz and 400.15-420 MHz) are used for a wide variety of terrestrial and space applications, including for safety of life purposes, and some of these bands are heavily used on a consistent basis. Nevertheless, if new allocations to the SOS in these frequency bands are considered, they should not put undue constraints on any incumbent services.

Download the PDF at
https://www.itu.int/en/ITU-D/Conferences/GSR/2019/Documents/Background_paper_Preparing%20for%20WRC19.pdf

Other meeting documents https://www.itu.int/en/ITU-D/Conferences/GSR/2019/Pages/Documents.aspx

AMSAT in special 300th edition of ICQ Podcast

The popular ICQ Amateur Radio Podcast has been running for over 11 years and on August 4, 2019, the ICQ Podcast team released their 300th edition which features an interview with Treasurer and Past President of AMSAT Keith Baker KB1SF.

The first edition of ICQ Podcast was released by Father and Son team Martin Butler M1MRB and Colin Butler M6BOY on July 6, 2008 and since those early days the show has gone from strength to strength.

Released fortnightly on a Sunday at 0900 GMT the ICQ Podcast is available either as an MP3 download or as a YouTube version with optional auto-generated subtitles.

In the 300th edition, Martin Butler M1MRB is joined by Chris Howard M0TCH, Dan Romanchik KB6NU and Frank Howell K4FMH to discuss the latest Amateur / Ham Radio news and this episode’s special feature is the interview with AMSAT’s Keith Baker KB1SF which begins at 1:10:30 into the show.

ICQ Podcast Episode 300 with AMSAT Treasurer and Past President Keith Baker KB1SF

ICQ Podcast https://www.icqpodcast.com/

Keith Baker KB1SF https://twitter.com/kb1sf
Martin Butler M1MRB https://twitter.com/M1MRB
Colin Butler M6BOY https://twitter.com/colinbutler
Chris Howard M0TCH https://twitter.com/m0tch_chris
Dan Romanchik KB6NU https://twitter.com/kb6nu
Frank Howell K4FMH https://twitter.com/frankmhowell

CubeSat Developers Workshop – talks now available

CalPoly CubeSat_LogoVideos of the talks given at the 2019 CubeSat Developers Workshop held at Cal Poly Performing Arts Center, San Luis Obispo, CA during April 23–25 are now on YouTube.

Schedule of presentations
http://mstl.atl.calpoly.edu/~workshop/archive/2019/Spring/2019-CDW-Schedule.pdf

Watch the videos at
https://www.youtube.com/channel/UCENz0fNHsDR8Kz3jM6C_VWw/videos

PDF Slides are in the CubeSat Developers Workshop Archive
http://mstl.atl.calpoly.edu/~workshop/archive/

CalPoly CubeSat
https://twitter.com/CalPolyCubeSat
http://www.cubesat.org/mailinglist/