3B8DU Jean Marc (@3b8du) 's Twitter Profile
3B8DU Jean Marc

@3b8du

Decoded or made contact through over 150 satellites, on LEO, MEO, GEO and Lunar birds

ID: 998901778354790400

calendar_today22-05-2018 12:21:57

371 Tweet

441 Followers

166 Following

3B8DU Jean Marc (@3b8du) 's Twitter Profile Photo

Seems (not 100% sure yet) that when IO-117 South of my QTH LHCP pol works better and RHCP better when North. Still making tests to confirm. I perfectly know the pol change with LEO when right overhead but trying to understand same with IO-117. Any hint most welcomed. 73 Jean Marc

3B8DU Jean Marc (@3b8du) 's Twitter Profile Photo

Greencube: Seems that many having Rx issues. I made some experiments and seems that from my QTH RHCP works better when bird West and LHCP when bird East. Not 100% sure and will observe more but polarization change works superb with almost 100% copy of my uplinks. PSE try 73 JM

3B8DU Jean Marc (@3b8du) 's Twitter Profile Photo

Greencube: Re my previous Tweets about polarisation. I mentioned N/S first and now E/W as honestly do not yet have a clear pattern but for sure polarization change make a huge difference. Any observation or ideas most welcomed. 73 Jean Marc

3B8DU Jean Marc (@3b8du) 's Twitter Profile Photo

Merry-xmas and happy new year 2023 to you all. 2022 was quite busy in terms of HAM satellite operations and hopefully year 2023 will be also exciting. Taking a break on HAM radio (station on automatic mode for TLM) for 1st half of Jan to sail around 3B8 in my /MM. 73 Jean Marc

3B8DU Jean Marc (@3b8du) 's Twitter Profile Photo

SS-1, another bird sponsored by UNOOSA/JAXA (IARU Coordinated) will be launched on 6th on Jan 2023. Please try to capture its first TX to support the Indonesian guys. Great that another HAM spacecraft will be up there early Jan. Info on Satnogs. 73 and happy 2023, Jean Marc

3B8DU Jean Marc (@3b8du) 's Twitter Profile Photo

Falconsat 3 re-entry: In spite hard to locate the re-entry lets give it a try, hope that many will do so to accompany this fantastic HAM bird in its last moment. A MARS Award and First Day cover of MO-112 stands (offer on AMSAT BB) for last signal received. 73 Jean Marc

3B8DU Jean Marc (@3b8du) 's Twitter Profile Photo

Falconsat 3 is living its last hours, per TLE (may be already wrong) at 245 Km now, thus it is probably a question of hours before re-entry. Per Mark (N8MH) the F3 Tx is now ON, please try to collect the max of TLM and forward. 73 Jean Marc

3B8DU Jean Marc (@3b8du) 's Twitter Profile Photo

It seems that Mark (VK5QI) was the last station to receive successfully Falconsat 3 (F3) signals. Therefore request that anyone who may have received F3 after him after 21/01/2023 at 13:34:41 Hrs do claim so and provide proof by 27/01/2023 at midnight UTC. See Amsat-BBs. 73 JM

3B8DU Jean Marc (@3b8du) 's Twitter Profile Photo

Dear All, Not very active on Ham QRG theses days as quite busy with the 3B8 ARISS student contact planned for 1st week of March. But enjoying sailing /MM on Odyssee II, today's nice passage around Coin de Mire island on the sailing push-pull amplifier. 73 Jean Marc

Dear All,
Not very active on Ham QRG theses days as quite busy with the 3B8 ARISS student contact planned for 1st week of March. But enjoying sailing /MM on Odyssee II, today's nice passage around Coin de Mire island on the sailing push-pull amplifier. 73 Jean Marc
3B8DU Jean Marc (@3b8du) 's Twitter Profile Photo

QO-100 experimental data beacon, getting quite good RX with the AMSAT-DL Multimedia High Speed Modem. Learning to use it and will try TX soon. 73 Jean Marc

3B8DU Jean Marc (@3b8du) 's Twitter Profile Photo

Hi All, been away for some time but now back. I upgraded SDR Console to V3.3 and great work by Simon, see PIC QO-100. E.g. the band plan but I also sync Tx/Rx and don't have now to worry about Fx, the S-meter is much better but I need still to adjust the SDR gain, 73 Jean Marc

Hi All, been away for some time but now back. I upgraded SDR Console to V3.3 and great work by Simon, see PIC QO-100. E.g. the band plan but I also sync Tx/Rx and don't have now to worry about Fx, the S-meter is much better but I need still to adjust the SDR gain, 73 Jean Marc
3B8DU Jean Marc (@3b8du) 's Twitter Profile Photo

Happy new year 2024 to all, hope the best for you this year. Not very active these days due to other priorities but will be back soon. 73 Jean Marc