Travelling Kit 1. Fireface 400, TEF 25, Tektronix DMM916 Earthworks M30BX & various adaptors   Travelling Kit 2. NTI Talk Box, NTI AL1, NTI MiniratorPro, Ampetronic Induction Loop meters, NTI MiniSPL microphone, Battery powered phantom power supply & various adaptors   Travelling Kit 3. EV RTM1000 radio measuring Mic system + audio step attenuators incorporating Lundahl Transformers & active electronics designed by the author Top section is a 2RU drawer containing cables, adaptors etc.   Amplitude & Phase - Loop back response of the test system - Fireface 400 through Travelling Kit 3   Microtech Gefell MK250 /MV220 measuring microphone + Easera Gateway Firewire Interface   Fireface 800 with Octamic preamp   Larson Davis 820 logger kit   Larson Davis 824 Kit