15-02-2022, 08:00 PM
Interesting to read about the use of southern aurora. I thought you guys were living to north to use this type propagation.
I simply love aurora since my early days of amateur radio. OK, things are different here in Europe where thousands of stations can be/were active in a big aurora lasting from the early afternoon to very late at night moving from east to west. I have worked many stations and squares I have never worked on other propagations.
Re the use of digital modes suitable for aurora. PI4 https://rudius.net/oz2m/ngnb/pi4.htm was designed to be a general purpose digital mode for beacon use. It is robust enough to be decoded via aurora, where a signal on 2 m is so heavily distorted, it can easily be 400 Hz wide. Here is a presentation from the RSGB 2018 convention about PI4 and why it is a success: https://www.youtube.com/watch?v=jFcCncceSN4 it also provides some comments to the general issues of path irregularities.
Did you know that FT4 is more sensitive than FT8?
Bo
www.rudius.net/oz2m :: www.rfzero.net
I simply love aurora since my early days of amateur radio. OK, things are different here in Europe where thousands of stations can be/were active in a big aurora lasting from the early afternoon to very late at night moving from east to west. I have worked many stations and squares I have never worked on other propagations.
Re the use of digital modes suitable for aurora. PI4 https://rudius.net/oz2m/ngnb/pi4.htm was designed to be a general purpose digital mode for beacon use. It is robust enough to be decoded via aurora, where a signal on 2 m is so heavily distorted, it can easily be 400 Hz wide. Here is a presentation from the RSGB 2018 convention about PI4 and why it is a success: https://www.youtube.com/watch?v=jFcCncceSN4 it also provides some comments to the general issues of path irregularities.
Did you know that FT4 is more sensitive than FT8?
Bo
www.rudius.net/oz2m :: www.rfzero.net