05 dicembre, 2016

ISS UHF - Frequenze

A seguito di un malfunzionamento di una delle radio utilizzate a bordo della ISS, la frequenza utilizzata per Packet/APRS ora è 437.550MHz

In UHF il doppler è molto più accentuato che in VHF quindi la centratura con radio portatili (step di 5kHz) diventa più laboriosa.

 

Ecco una tabella dalla mailing list AMSAT su come impostare le memorie per facilitare le cose:

RX TX Info
437.560 437.540 AOS
437.555 437.545  
437.550 437.550 Simplex
437.545 437.550  
437.540 437.560 LOS

 

Qui il log delle stazioni ricevute tramite ISS in UHF durante le prove di ieri sera (4-12-2016):

1:Fm M0GIW To CQ Via RS0ISS* <UI C Pid=F0 Len=62> [18:16:22R] [-++]
=5336.15N/00057.30W-73' Via ISS De Dave EI4HT / M0GIW {UISS54}
2:Fm M0GIW To CQ Via RS0ISS* <UI C Pid=F0 Len=62> [18:16:22R] [++-]
=5336.15N/00057.30W-73' Via ISS De Dave EI4HT / M0GIW {UISS54}
1:Fm M0GIW To CQ Via RS0ISS* <UI C Pid=F0 Len=62> [18:16:30R] [+++]
=5336.15N/00057.30W-73' Via ISS De Dave EI4HT / M0GIW {UISS54}
2:Fm M0GIW To CQ Via RS0ISS* <UI C Pid=F0 Len=62> [18:16:30R] [++-]
=5336.15N/00057.30W-73' Via ISS De Dave EI4HT / M0GIW {UISS54}
1:Fm M0GIW To CQ Via RS0ISS* <UI C Pid=F0 Len=18> [18:16:35R] [+++]
Dave EI4HT / M0GIW
2:Fm M0GIW To CQ Via RS0ISS* <UI C Pid=F0 Len=18> [18:16:35R] [++-]
Dave EI4HT / M0GIW
1:Fm M0GIW To CQ Via RS0ISS* <UI C Pid=F0 Len=39> [18:16:44R] [+++]
:CQ :Hello Via ISS from Yorkshire
2:Fm M0GIW To CQ Via RS0ISS* <UI C Pid=F0 Len=39> [18:16:44R] [++-]
:CQ :Hello Via ISS from Yorkshire
1:Fm M0GIW To CQ Via RS0ISS* <UI C Pid=F0 Len=18> [18:16:53R] [+++]
Dave EI4HT / M0GIW
2:Fm M0GIW To CQ Via RS0ISS* <UI C Pid=F0 Len=18> [18:16:53R] [++-]
Dave EI4HT / M0GIW
1:Fm RS0ISS To CQ <UI C Pid=F0 Len=36> [18:16:57R] [+++]
>ARISS - International Space Station
2:Fm RS0ISS To CQ <UI C Pid=F0 Len=36> [18:16:57R] [++-]
>ARISS - International Space Station
1:Fm M0GIW To CQ Via RS0ISS* <UI C Pid=F0 Len=18> [18:17:08R] [###]
Dave EI4HT / M0GIW
2:Fm M0GIW To CQ Via RS0ISS* <UI C Pid=F0 Len=18> [18:17:08R] [#+-]
Dave EI4HT / M0GIW
1:Fm M0GIW To CQ Via RS0ISS* <UI C Pid=F0 Len=39> [18:17:32R] [+++]
:G0GOO :Hello Via ISS from Yorkshire
2:Fm M0GIW To CQ Via RS0ISS* <UI C Pid=F0 Len=39> [18:17:32R] [++-]
:G0GOO :Hello Via ISS from Yorkshire
1:Fm M0GIW To CQ Via RS0ISS* <UI C Pid=F0 Len=18> [18:17:51R] [+++]
Dave EI4HT / M0GIW
2:Fm M0GIW To CQ Via RS0ISS* <UI C Pid=F0 Len=18> [18:17:51R] [++-]
Dave EI4HT / M0GIW