7,000 km contact via AO-7 Mode B - Brazil to Belgium

Amsat News carried a brief report of a successful AO-7 Mode B contact between Piraja, PS8RF in Brazil and Jean-Jacques, ON7EQ in Belgium.

Since last week's report, additional information has been received on how they accomplished their 4736 mile (7622 KM) contact.

Jean-Jacques wrote, "As the theoretical window between both stations only lasts about 1 minute, 30 seconds, careful preparation was required for selection of the optimal window and calculation of doppler shifts both ways.

The effective contact was only possible during about 20 seconds, just enough to exchange reports, while both stations met on the transponder within an offset of 500 Hz of calculated frequencies."

Well done and congratulations gents!

PS8RF has posted this video of the Satellite DX event.

http://www.amsat.org/amsat-new/news/