A cost-effective RF Signal Transmit-Receive chain with independent transmit and receive coil was designed with inexpensive off-the-shelf electronic components, costing around 175 US dollars. A Direct Digital Synthesizer (DDS) module was controlled using an Arduino Uno R3 microcontroller board. RF pulses were timed to precision using Arduino IDE, and the 405 kHz sine wave required to operate a 9.5 mT system was pulsed to a transmit coil. This signal was detected successfully by a custom-made surface coil. While the transmit, pulse was at 1.12Vpp from the DDS module, the surface coil successfully picked up a 1.75 Vpp signal.
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