July 2, 2022 Off

Second QO-100 User Meeting with many guests

By Peter Gülzow

On the sidelines of the HAM RADIO 2022 in Friedrichshafen, enthusiastic supporters of the geostationary QO-100 satellite met after a break of more than 2 years for the second QO-100 User Meeting for a pleasant evening.   A considerable number...

May 30, 2022 Off

QO-100 High Speed Multi Media Beacon

By Peter Gülzow

The new "AMSAT-DL Highspeed Multimedia Modem" developed by Kurt DJ0ABR for the QO-100 NB transponder allows a transmission speed of up to 7200 bit/s in 8 APSK or 4800 bit/s in QPSK despite the maximum allowed bandwidth of 2.7 kHz....

May 23, 2022 Off

QO-100 User Meeting HAM RADIO 2022 in Friedrichshafen, Germany

By Peter Gülzow

Who is interested in a cozy meeting together with other QO-100 users? We plan to meet at a restaurant near HAM RADIO on Saturday, June 25, 2022 starting at 7pm CEST (about a 12 minute walk or 5 minute drive)....

April 10, 2022 Off

Deep space reception of Tianwen-1 by AMSAT-DL using GNU radio

By Peter Gülzow

This paper by Daniel Estévez EA4GPZ, Mario Lorenz DL5MLO and Peter Gülzow DB2OS describes the reception of the Tianwen-1 Chinese Mars mission carried out by AMSAT-DL with the 20 meter antenna at Bochum Observatory (Germany). A real-time GNU Radio decoder...

February 21, 2022 Off

ISS radio contact “Cosmic Kiss” with Matthias Maurer via QO-100

By Peter Gülzow

Currently, German ESA astronaut Matthias Maurer is aboard the International Space Station ISS with the individual amateur radio call sign KI5KFH. As part of his "Cosmic Kiss" mission, he also conducts amateur radio contacts with schools under the callsign DP0ISS....

January 4, 2022 Off

Svalbard QO-100 Satellite DX-Pedition

By Peter Gülzow

The very first Svalbard QO-100 Satellite DX-Pedition will take place April 22-24, 2022 from Kapp Linné – Isfjord Radio at 78° North.     ON4CKM Cedric, ON5UR Max and ON4DCU Patrick will take up the challenge and travel to Kapp...

August 31, 2021 Off

New board elected

By Peter Gülzow

At the AMSAT-DL General Meeting on 28 August 2021 in Bochum, the members elected the new Board of Directors for…