Technician Class Radio Amateurs have the following HF allocations, where they can use CW:
3.525-3.600 MHz. – 80 Meters
7.025-7.125 MHz. – 40 Meters
21.025-21.200 MHz. – 15 Meters
28.000-28.300 MHz. – 10 Meters
CW is the original digital mode, and requires nothing other than a transceiver, CW key, your ears, and the stuff between them. Tuna can-sized CW transceivers can be put together out of discrete components and will cost you only $40. – http://qrpme.com/?p=product&id=LST
Almost as inexpensive as a Chicom HT, made in America (by you), and easy to fix with common electronic parts.
Roll your own.
See you in class.