Re: JT9 on 6 meters
- Hi Julia and the group
Well, what do you mean with "short?" The challenge is that "short lifts" are often subject to path distortions like Doppler or multi-path. Indeed it would be nice with a short, fast, sensitive, narrow and robust mode :-)
This being said you may want to try to listen for OZ7IGY on 50,471 MHz: www.rudius.net/oz7igy It is a beacon running a mixed mode signal (PI4 + CW ID + carrier).
PI4 takes less than 25 s. It is, however, not a one-to-one communication protocol but a modified JT4 for beacon purposes. But it will give you an idea about the possibilities with a faster mode than JT9/WSPR and a bit faster than JT4 with the inherited penalties.
TO decode PI4 you can use PI-RX: www.rudius.net/oz2m/software/pi-rx
To read more about PI4 go here: http://rudius.net/oz2m/ngnb/pi4.htm PI4 has been decoded via aurora! Rain scatter remains though.