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. Author manuscript; available in PMC: 2012 Oct 1.
Published in final edited form as: Biomed Signal Process Control. 2011 Oct 1;6(4):356–363. doi: 10.1016/j.bspc.2011.05.007

Fig. 8.

Fig. 8

Class A data transmitter. Amplitude shift-keyed (ASK) signals were delivered from the PXI system. The incoming signal was AC coupled to the npn transistor, which provided current amplification. The 18 pF – 8 μH L-network provided impedance matching to the 80 Ω coaxial cable to the primary data coil resonant network.