In effect transcribing the Phone received FM station to yet another FM Broadcast Band frequency - as received on another FM receiver (my the FT-817). Which I inadvertently turned it on, the audio was redirected to the audio output jack which was connected to the Micro FM Transmitter. Shop Quality & Best Oscilloscopes Directly From China Oscilloscopes Suppliers. The Siekoh Giken OEFS (Optical Electric Field Sensor) optically-coupled E-field probe is a very unique instrument ( Figure 1 ). Enjoy Free Shipping Worldwide Limited Time Sale Easy Return. I think it is safe to say this Transmitter is very gentle on its battery.Īn interesting observation: My HTC Droid Phone has an FM Receiver APP that can be used to listen to FM radio. (MEGA SALE) US 2,644.80 Buy RIGOL DS2302A-S 300MHz Digital Oscilloscope 2 Analog Channels From Seller Jiutian Instrument Store.
Thanks Mark for the build inspiration, and Tetsuo for the circuit design.Īt about 24 hours mark the output frequency shifted up about 2kHz.įor the Die Hard Test A single 9 Volt Battery has now been powering this transmitter continuously for more than 96 hours.Īt 96 hours I stopped the Die Hard Test to experiment with other aspects of this Transmitter.
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