I'm a starving college student that as a side-project, would like to set up my computer to receive packet, weatherfax, etc. via my old Grundig YB400 and my Dell Inspiron 1150.  I'm on a budget (the financial aid pays the rent and the grocery bill...and whatever is left over goes towards the occasional six-pack ) so I can't really consider in upgrading/investing in new rigs and such.  Could anyone point me in the right direction...say...some good decoding programs?  Any help will be greatly appreciated; thanks!