QO-100 satellite, GNU Radio and SDR talks released

BT Adastral Park, Martlesham - credit BT

BT Adastral Park, Martlesham – credit BT

Mark M5BOP reports the complete set of amateur radio technical talks from this year’s Martlesham Microwave Round Table is now available to watch on YouTube.

Videos of these MMRT 2019 talks are available:
• Practical GNUradio – Heather Lomond M0HMO
• From Death Rays to Dinner – William Eustace M0WJE
• Equipment for Es’hail-2 / QO-100 Narrowband – David Bowman G0MRF
• DATV on Es’hail-2 / QO100 – Noel Matthews G8GTZ
• Low-pass Harmonic Filter for 23cm – John Quarmby G3XDY
• UKuG SDR Voice Transceiver Project Discussion

Watch the videos on the Martlesham Microwave YouTube channel at

Source UK Microwaves on Groups IO

UK Microwave Group

AMSAT-UK: https://amsat-uk.org/
Twitter: https://twitter.com/AmsatUK
Facebook: https://facebook.com/AmsatUK
YouTube: https://youtube.com/AmsatUK

University CubeSat Club members get ham radio licenses

Dawson Duckworth KC3NNB, Lauren Hurley KD2RHC, Kaixuan Ji AC3EN and Dr. Alan Johnston KU2Y staffed the AMSAT / Villanova CubeSat Club table at the Robotstock/STEM event in August

Dawson Duckworth KC3NNB, Lauren Hurley KD2RHC, Kaixuan Ji AC3EN and Dr. Alan Johnston KU2Y staffed the AMSAT / Villanova CubeSat Club table at the Robotstock/STEM event in August

Students at the Villanova University College of Engineering started a CubeSat Club in the fall of 2018 and have since got their amateur radio licenses.

The university website reports:

A CubeSat is a nanosatellite—a small, lightweight satellite that is cheaper to build than a conventional satellite. They can be launched from rockets, or occasionally from the International Space Station by astronauts. CubeSats send telemetry information—measurements communicated at remote points by automated processes—over radio signals received on earth by a ground station.

The CubeSat club’s 2018-2019 year was packed with a variety of workshops and projects, including:

• Setting up temporary ground stations called SatNOGS (Satellite Network Operators Group)
• Building Yagi-Uda antennas from tape measurers and scrap wood and using them to track low earth orbit satellites as they flew over Villanova
• Building an AMSAT CubeSat Simulator, a functional satellite model
• Assisting with the freshman CubeSat mini-design projects
• Earning amateur radio licenses and ham radio callsigns
• Assembling and selling electronic transceiver boards used in CubeSats as a fundraiser
• Attending the 2019 Hamvention conference and running the AMSAT education table
• Received and decoded a special message sent from the AO-73 FUNcube Satellite especially for Villanova

Read the full story at

The students emailed a request to the FUNcube Operations Team to get their special message transmitted from space by the AO-73 satellite. Further information on these ‘Fitter’ messages is available at https://funcube.org.uk/ground-segment/fitter-messages/

Taurus-1 with Codec-2 transponder launched

Taurus-1 with solar sail deployed

Taurus-1 with solar sail deployed

Taurus-1 (Jinniuzuo-1) carrying an amateur radio FM to Codec-2 transponder was launched on a CZ-4B rocket from the Taiyuan Satellite Launch Center on Thursday, September 12 at 0326 GMT.

Taurus-1 is a CubeSat project developed by Aerospace System Engineering Research Institute of Shanghai for youth education and amateur radio.

The transponder is similar to that used on LilacSat-1 receiving FM with 67 Hz CTCSS on 145.820 and retransmitting it as Codec-2 9600 bps BPSK digital voice along with the telemetry data on a nominal frequency of 435.840 MHz +/-10 kHz Doppler shift.

On Friday, September 13, Mark Jessop VK5QI tweeted:
“Good signals from #Taurus-1 on 435.840 MHz! Doesn’t look like the FM/Codec2 Transponder is enabled yet though (no response on 436.760 MHz when transmitting on 145.820 MHz)” Note: this was sent before it was realized Codec2 voice and the telemetry were on the same frequency.

Taurus-1 beacon received by Mark Jessop VK5QI

Taurus-1 beacon received by Mark Jessop VK5QI

Codec2 9600 bps BPSK Downlink information by Daniel Estévez EA4GPZ

Adam Whitney K0FFY documented how to receive the similar Codec2 Digital Voice transponder originally flown on LilacSat-1 using the FUNcube Dongle Pro+ SDR

A paper by Paul Stoetzer N8HM on the FM-Code2 transponder is at

Nico Janssen PA0DLO reports the actual telemetry downlink frequency is 435.8387 MHz and Doppler measurements show that Taurus 1 is object 44530 (2019-059C).

Keplerian Two Line Elements (TLEs) ‘Keps’ for new satellites launched in past 30 days

IARU Region 3 approves new 15m satellite allocation

The IARU Region 3 Directors meeting was held in Tokyo September 2-3. A modified interim Region 3 bandplan was approved which included an Amateur-Satellite Service allocation in the 15m band.

The Chairman of IARU Region 3 directors, Wisnu Widjaja YBØAZ and the directors Ken Yamamoto, JA1CJP, Peter Young, VK3MV, Don Wallace, ZL2TLL, Jakkree Hantongkom, HS1FVL, Mohd. Aris bin Bernawi, 9M2IR met in Tokyo for their annual Directors’ meeting at the conference room of JARL. They were assisted by the IARU Region 3 Secretary Shizuo Endo JE1MUI. They were joined by IARU President Tim Ellam VE6SH and Region 2 President Reinaldo Leandro YV5AM.

The directors reviewed progress on tasks directed and identified at the last Directors’ meeting and the Regional Conference that were held in Seoul, Korea in September 2018.

The finance situation of the region was noted to be healthy and well within budgets set earlier.

Reports were received from the Chairman, Directors and the Secretary. They mainly reported subjects on the responsibilities allocated to each of them.

Reports were also received from the Region 3 committee chairmen and coordinators. Those include reports related to Monitoring System, Bandplan Committee, EMC, Disaster Communications, ARDF activities in some societies and Award manager.

Reports including an oral report were also received from the IARU president and Regions 1 & 2 secretary. Their reports include issues such as current situations on agenda items concerned the amateur services towards WRC (World Radiocommunication Conference)-19, administrative issues and activities in their own areas.

It was noted that some IARU Region 3 societies are no longer active and the Directors are looking at a way to involve the amateurs in these countries in IARU activities.

Other important issues to our Region were also discussed. Those include the revision of Newsletter guideline and use of social media in IARU Region 3, new structure of IARU Region 3 website and Region 3 YOTA (Youth On The Air) program.

It was recognized that usage of a social media in addition to the newsletter is useful to enable a better communication with the IARU Region 3 member societies and their members. Furthermore, it is also recognized that societies are encouraged to provide information which is included in a Region 3 newsletter and monitoring system newsletter.

It was decided that an IARU Region 3 YOTA activity will take place in Pattaya, Thailand in October 2020.

The modified interim Region 3 bandplan proposed by the Region 3 Bandplan Committee was approved. A notable change was addition of a satellite portion in 15m Band as agreed at the last Region 3 Conference.

It was agreed to make a necessary action to extend the MOU (Memorandum of understanding) with APT (Asia-Pacific Telecommunity) which is to be expired in coming December.

The Chairman, Wisnu Widjaja YBØAZ and a Director, Ken Yamamoto JA1CJP will be present at the next Administrative Council meeting and the Region 2 Conference which will be held in Lima, Peru from September 28 to October 4, 2019.

It was agreed that the next directors meeting be tentatively fixed for the 1st to 3rd of October 2020 in Thailand.

Source IARU Region 3 https://iaru-r3.org/topics/pressreleases

Download the interim IARU Region 3 bandplan

AMSAT-LU PicoBalloons travel the around the globe

AMSAT-LU Picoballoon Payload

AMSAT-LU Picoballoon Payload

The WSPR Picoballoon on 14.0956 USB released August 31 is about to complete its first circumnavigation of the globe after traveling 33,000 km in 12 days.

AMSAT-LU appreciate any WSPR stations that help to receive it, AMSAT-LU will recognize with a certificate to stations that capture its 25 mW beacon.

Trajectory at http://lu7aa.org.ar/wspr.asp
(slow access but with lot of information)

Info: http://amsat.org.ar?f=buoy

WSPR program at http://amsat.org.ar/wspr.exe

Also the APRS PicoBalloon (145.825 via Sat 1W) will be returning this Friday to S.America

73, LU7AA, AMSAT Argentina

CEPT CPG decides position on 144, 50 and 1240-1300 MHz

CEPT Logo“At the insistence of the European Commission, a WRC-23 agenda item was considered necessary to address the world-wide protection of Regional Navigational Satellite Systems from amateur emissions in the band 1240-1300 MHz.”

The CEPT ECC CPG met in Ankara during August 26-30 to finalise their position ahead of the ITU World Radiocommunication Conference 2019 (WRC-19) to be held in Sharm el-Sheikh, Egypt, October 28 to November 22. This conference will define the Agenda Items for WRC-23.

RSGB volunteers along with other radio amateurs in IARU Region 1 countries put in a considerable amount of work to defend the amateur radio allocations. Their hard work ensured the removal of 144-146 MHz from a study of additional spectrum for aeronautical applications and an agreement on a European Common Proposal for 50-52 MHz.

IARU Region 1 have released this report on the meeting:

The CEPT Conference Preparatory Group met this week in Ankara, Turkey. Items of interest to the amateur service which were finalised were:

– Agreement to a European Common Proposal (ECP) on allocating 50-52 MHz to the amateur service in Region 1 on a secondary basis with a footnote listing those countries where the amateur service will have a primary allocation in the band 50-50.5 MHz (WRC Agenda Item 1.1)

– Agreement to an ECP on spectrum to be considered for International Mobile Telecommunications, which does not now include the primary amateur band at 47-47.2 GHz (WRC Agenda Item 1.13)

– Agreement to an ECP that retains the current regulatory position in the 5725-5850 MHz frequency band which includes secondary allocations to the amateur service and the amateur-satellite service (WRC Agenda Item 1.16)

– Removal of 144-146 MHz from a French proposal for study of additional spectrum for aeronautical applications. (WRC Agenda Item 10)

– At the insistence of the European Commission, a WRC-23 agenda item was considered necessary to address the world-wide protection of Regional Navigational Satellite Systems from amateur emissions in the band 1240-1300 MHz. A draft WRC Resolution was agreed which underlines the importance of this frequency band to the amateur service and explicitly excludes the removal of existing allocations as part of the proposed agenda item. (WRC Agenda Item 10)

– There was no change to the already agreed CEPT position on Wireless Power Transmission (WRC Agenda item 9.1.6). This states that no change is needed in the Radio Regulations to address the question of operating frequency for WPT-EV, but leaves open the question of spurious emissions from WPT-EV.

Commenting on the outcome of CPG, IARU Region 1 President Don Beattie, G3BJ, said that the IARU team at Ankara (the only representatives of the amateur service at the meeting) had presented clear and convincing arguments for the amateur service position and he was pleased that regulators had recognised the strength of the amateur case. He expressed his thanks to everyone who had contributed to the outcome at CPG.

The issues now move to WRC in Egypt in November for final resolution. IARU will be there.

IARU Region 1 https://iaru-r1.org/

Note: Although the CEPT position includes a Primary allocation at 50.0 to 50.5 MHz it is for the Amateur Service only – the Amateur Satellite Service is excluded.

CEPT ECC CPG19-9 Ankara Meeting Minutes and Annexes are available for download at

Background to 1240-1300 MHz https://amsat-uk.org/2019/08/19/threat-to-amateur-radio-23cm-band/