AMSAT-UK

///////////////////////////////////////////
QO-100 satellite, GNU Radio and SDR talks released

Posted: 13 Sep 2019 02:29 PM PDT
https://amsat-uk.org/2019/09/13/mart...alks-released/

BT Adastral Park, Martlesham credit BT

Mark M5BOP reports the complete set of amateur radio technical talks from
this years 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 Eshail-2 / QO-100 Narrowband David Bowman G0MRF

• DATV on Eshail-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

https://www.youtube.com/channel/UCHV...1QxUS9w/videos

Source UK Microwaves on Groups IO

https://groups.io/g/UKMicrowaves/message/51753

UK Microwave Group

https://www.microwavers.org/

https://twitter.com/UKGHZ

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

Posted: 13 Sep 2019 09:20 AM PDT
https://amsat-uk.org/2019/09/13/univ...-cubesat-club/

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

https://www1.villanova.edu/villanova...eSat-Club.html

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

Posted: 13 Sep 2019 07:45 AM PDT
https://amsat-uk.org/2019/09/13/taur...ec-2-launched/

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 on 436.760 MHz. The telemetry downlink is on 435.840 MHz +/-10 kHz
Doppler shift.

On Friday, September 13, Mark Jessop VK5QI tweeted:

Good signals from #Taurus-1 on 435.840 MHz! Doesnt look like the FM/Codec2
Transponder is enabled yet though (no response on 436.760 MHz when
transmitting on 145.820 MHz)

https://twitter.com/vk5qi/status/1172505034551988225
Taurus-1 beacon received by Mark Jessop VK5QI

Codec2 9600 bps BPSK Downlink information by Daniel Estévez EA4GPZ

https://destevez.net/2016/10/lilacsa...ec-2-downlink/

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

http://adamwhitney.net/working-lilacsat-1/

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

https://www.amsat.org/wordpress/wp-c...cSat_LO-90.pdf

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

http://celestrak.com/NORAD/elements/tle-new.txt