SCAMP and busy detection are two entirely different pieces of software and capability.
SCAMP took the RDFT image transfer protocol and added pieces to it for file transfer and ARQ. Busy detection was a totally separate activity in parallel with SCAMP. Just trying to keep the confusion and subsequent misinformation to a minimum. Rud Merriam K5RUD ARES AEC Montgomery County, TX http://TheHamNetwork.net It was that way before the SCAMP concepts were known. The only thing that has changed is that the community learned that USING SCAMP there is a POSSIBILITY of avoiding collisions with its busy detector.