HRD 4.0 is the current stable release, also contains Digital Master 780. HRD 4.0 will be upgraded to HRD 4.2 and maintained as long there is sufficient demand.

HRD 5.0 (beta) is the result of the last two year's programming effort. Based on HRD 4.0 version 5.0 has:

• New satellite tracking,
• New rotator control,
• Upgraded Digital Master 780, and
• A brand new logbook.

HRD 5.0 is the future of Ham Radio Deluxe.

HRD Hilfe		Hilfe auf Deutsch von Eike DM3ML (help in German).
Auxiliary Switching		A guide to using the parallel port.
CAT box		A modular computer interface by Bas Helman G4TIC.
Command Tester		In a project like Ham Radio Deluxe it is not always possible for the developers to have every radio available for their own use: it’s very expensive and takes up too much room. This is where the user community helps - by using the Command Tester individual commands can be tested by the users of Ham Radio Deluxe and the results sent to the developers as a text file in a standard format.
Interfaces		A basic guide to CAT and Audio interfacing.
Satellites		A description of the satellite data generation and data tracking components of Ham Radio Deluxe.