September 18, 2022 Off

QO-100 Multimedia Beacon with new content

By Peter Gülzow

QO-100's Multimedia HighSpeed Beacon has received another update and now includes 10 tabs for the various AMSAT bulletins. Other functions, such as the DXCluster and the CW spotter have also been revised. Also new are the QO-100 DX Club News,...

August 11, 2022 Off

Symposium, flea market and general meeting 2022

By Peter Gülzow

The AMSAT-DL Symposium will be held prior to the General Membership Meeting on Saturday, September 10, 2022 from 10 am to 1 pm. The general meeting will follow at 2 p.m., after a short lunch break during which refreshments will...

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...