[racingdwarf]

To make a system that excludes AMB transponders seems a bit daft, as a large percentage of transponders are AMB, exclude them and exclude half your market?

why not make a system cheeper than AMB,that can receive signal from AMB or MRT transponders, then sell it to clubs who can't afford £3000+ for timing gear...or even have a tray of handout transponders, now there's a thought