Echo-Echo DX Group
- The ECHO-ECHO group is an International Radio Club of 11 meter operators. The Group was founded on spring 1989 in Warszawa, the capital of Poland, to study propagation and to promote friendly and brotherly relations among radio operators in the world.
- PSK31 Deluxe is a PSK31 and PSK63 program for novices and power users.
It has been replaced by Digital Master 780 and is now a legacy product.
The last version of PSK31 Deluxe was shipped with the HRD 4.0 SP4 kit and is no more availabe and supported.