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, NTI Audio XL2 with STIPa and extended acoustics pack, NTI Audio MA 220 Type 1 microphone, Larson Davis CAL200 Type 1 Calibrator & 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 + Aubion X8 Ethernet Interface   Fireface 800 with Octamic preamp   Larson Davis 820 logger kit   Larson Davis 824 Kit