ftp://ftp.ips.gov.au/users/phil/data/ionograms/  direct

[DIR]sites/  direct  2067+ twin directories
[DIR]other/  direct  7740+ twin directories
[DIR]july01/  direct  2 twin directories
[DIR]cadi/  direct  11 twin directories
[DIR]bribie/  direct
749 B  1996-12-01README.dig