J-QAM is used to send web pages and Audio/Video through the soundcard on your PC. It is a simple radio transmitter that rates up to 100kb/s. You can set up two transmitters joining together to achieve two-way communication that allowing PPP TCP/IP over radio! But that is not all. In addition, with J-QAM, you can transmit UDP packets and RS232 data easily. J-QAM uses quadrature amplitude modulation scheme (QAM). J-QAM robustness is achieved with Read Solomon coding, interleaving, and TCM. In addition, the publisher provides the source code that is written in Borland C++ Builder so you can inspect and modify as you wish to suit your needs.