LilacSat-1 (LO-90) Commemorative Competition

LilacSat-1 CubeSatThe amateur radio satellite LilacSat-1 (LO-90) is expected to re-enter the Earth’s atmosphere and burn-up later this month. WEI Mingchuan BG2BHC reports a competition is being held to collect telemetry data and make contacts via the satellite.

Update March 14, 2019: For LilacSat-1 telemetry upload and TLE update, please replace with in proxy window.

Contest Period:

March 16, 2019 UTC 00:00 to LilacSat-1 re-entry

Competition Categories:
• Amateur Radio Telemetry Group
• Amateur Radio Communication Group

Competition Goals:

Amateur Radio Telemetry Group:
• Receive and upload as many telemetry packets as possible within a specified time.

Amateur Radio Communication Group:
• Make as many bidirectional QSO as possible and as many grid locator as possible within a specified time.

Scoring strategy:

Amateur Radio Telemetry Group:
• For each successfully uploaded telemetry packet (The score would be count at HIT server), counts 1 point

Amateur Radio Communication Group:
• Exchange information: callsigns and grid locator
• For each bidirectional QSO, counts 1 point. (Dupe QSO with same callsign is not counted as the number of successful QSO)
• For each different number of grids, counts 1 multiplier.

Final results:
• Amateur Radio Telemetry Group: final score = basic point
• Amateur Radio Communication Group: final score = basic point * multiplier

• All telemetry data uploader and participants could get a LilacSat-1 QSL card.
• China: top 3 certificates issued.
• World: Top 10 certificates issued.
• For the ham who receive the last downlink signal in the world and successfully uploaded it to the server, they will receive a special gift.

Honor stickers:
• For all those portable stations or receivers set up and operated in the field for this contest, a ” Field ” sticker is affixed to the certificate, and the applicant is required to attach the operating photo as evidence.

Log submissions:

Amateur Radio Telemetry Group:
• After the satellite re-entry, we will advertise the telemetry package list received from March 16, 2019 UTC 00:00 to LilacSat-1 re-entry.
• The participants should send an e-mail with your callsign and the address to (no later than April 30, 2019 UTC 00:00)

Amateur Radio Communication Group:
• After the satellite re-entry, the participants should send an e-mail with the communication log and the address to (no later than April 30, 2019 UTC 00:00)
• The log is in Cabrillo or Excel XLS format and needs to contain UTC time, send and receive exchange information.
• For Field/Portable radio stations and receivers, the photo must be sent together.

WEI Mingchuan BG2BHC


ICSEDS 434 MHz balloon launch

GPS module with Guitar wire antenna and HC12 module - credit ICSEDS

GPS module with Guitar wire antenna and HC12 module – credit ICSEDS

Medad Rufus reports two balloons with 434 MHz transmitters built by Imperial College Students for the Exploration and Development of Space (ICSEDS) will launch from Wormwood Scrubs, London on Saturday, March 9.

On the UK High Altitude Society reflector Medad posted:

This is a launch announcement for the launch of ICSPACE6 & 7 from Wormwood Scrubs, London, UK. We have had some success with the launches of our previous pico balloons and we hope it works 100% this time.

The hardware is nearly identical to the previous launch; only software changes made. The winds are expected to take it towards the Netherlands/Belgium and further east into Germany.

Here is the information about the balloons to be launched tomorrow:

Callsign: ICSPACE6
RTTY: 434.600 MHz USB
50 baud 745 Hz shift ASCII-8 no parity 2 stop bits
Launch time aim: 10:40 am on March 9
Transmits 10 pips before transmitting message. 30s gap between each transmission

Callsign: ICSPACE7
RTTY: 434.250 MHz USB
50 baud 745 Hz shift ASCII-8 no parity 2 stop bits
Launch time aim: 11:40 am on March 9
Transmits 10 pips before transmitting message. 30s gap between each transmission when below 3000m. Above 3000m, it will transmit with a gap of 60 seconds.

We appreciate all listeners for our flights. I hope this flight goes well.

Here is information about the launch of ICSPACE4 & 5 four weeks ago.

Source UKHAS Groups IO

Real-time balloon track can be seen at

Listen to the signals online with the Farnham WebSDR

Useful High-Altitude Balloon links

Space meeting to be streamed via ham radio geostationary transponder

Es'hail-2 Qatar-OSCAR-100The 2nd Amateur Radio Space Meeting, taking place in Nanterre, Paris, March 9-10, will be streamed live via the Digital Amateur TV transponder on Es’hail-2 / QO-100 geostationary satellite.

A Google translation of the AMSAT-Francophone post says:

AMSAT-Francophone and Electrolab have deployed a ground station to operate the QO100 transponder in DATV.

The “broadcast DATV” team led by Yannick Avelino and with the support of Evariste F5OEO has developed the station that will broadcast live the conferences of the second amateur radio space meeting March 9-10, 2019. The team was in contact with AMSAT-DL and AMSAT-UK for permission to operate the satellite during these days.


Meeting information and Schedule of talks

2.5 milliwatt OPERA signal via Es’hail-2 geostationary satellite

Es'hail-2 Qatar-OSCAR-100Markus Vester DF6NM successfully used the digital mode OPERA to send a 2.5 milliwatt signal on 2.4 GHz through the amateur radio transponder on the Es’hail-2 / QO-100 geostationary satellite.

Graham G0NBD writes about the contact on Digital Radio Groupsio.

On March 3, 2019, Markus started using 250 milliwatts on 2.4 GHz into a 60 cm dish pointing at Es’hail-2. The downlink signal was received via the AMSAT-UK and BATC 10 GHz WebSDR at Goonhilly in Cornwall by Peter Knol PA1SDB.

Markus then reduced power to just 2.5 milliwatts and the signal was still receiveable.

See Digital Radio Groupsio post at

OPERA was developed by Jose EA5HVK and can be downloaded from

Es’hail-2 / Qatar OSCAR-100 web receiver now live

DF6NM to PA1SDB using OPERA via Es'hail-2 on March 3, 2019

DF6NM to PA1SDB using OPERA via Es’hail-2 on March 3, 2019. Note Microwavers spots site doesn’t display satellite frequencies correctly

UWE-4: First NanoFEEP thruster ignition

UWE-4 LogoAt 09:59:00 UT on February 26, one of the UWE-4 CubeSat NanoFEEP thrusters, developed by TU Dresden and Morpheus Space, was successfully ignited.

This is the first time an electric propulsion system has been activated on board of a 1U CubeSat in space.

A voltage of more than 5kV has been produced by the power processing unit causing a thruster emitter current of 40µA. For this very first firing a duration of 30s was intended.

Primary mission: accomplished!

Within the next days experiments with the propulsion system for a characterization of the thrusters will be conducted.

Thank you very much for your support! Especially the directly injected messages into our server using the decoding tool by Mike DK3WN help us a lot with our daily operations!

Kind regards,
The UWE‑4 Team

UWE-4 435.600 MHz

UWE-4 Thruster Firing Voltage (kV)

UWE-4 Thruster Firing Voltage (kV)

Digital ATV co-ordination on Es’hail-2

Narrowband DATV image (150 kHz bandwidth) via QO-100 Noel G8GTZ Feb 14, 2019 at 0950 GMT

Narrowband DATV (150 kHz bandwidth) via QO-100 sent by Noel G8GTZ Feb 14, 2019 at 0950 GMT

AMSAT-DL has agreed to a proposal by the British Amateur Television Club (BATC) for the use of the bottom 100 kHz of the wideband transponder (10491 – 10491.1 MHz) for ATV co-ordination purposes.

The announcement on the BATC Forum says:

This is on an experimental only basis and stations must keep their power levels to a minimum and certainly not exceed power levels greater than 15dB above the noise floor as shown on the Goonhilly spectrum monitor.

This is sanctioned on an experimental only basis and AMSAT-DL reserve the right to move the WB beacon towards the band edge or implement DVB-S with a wider rolloff which would render the frequencies unsuitable for this purpose.

So another challenge but should be manageable and prove a useful facility although we do see the chat being the major tool for reports and contacts.

73 Noel G8GTZ

BATC Forum Announcement

Es’hail-2 WebSDR

Es’hail-2 Wideband amateur radio transponder operating guidelines

Es’hail-2 amateur radio information

See the Satellite Forum for additional information