describe: DCF receiver module with DCF antenna tuned to signal transmitter DCF77 (Frankfurt 77.5 kHz). The antenna induction signal is sent to the IC for amplification, demodulation, and then identified by the MCU, so that the date and of the timing center can be exactly the same. Below you will find important setup and circuit diagrams. Technical Specifications Operating voltage: 1.1...3.3 V Current consumption: 85 A max Receiving frequency: 77.5 KHz Board size (without antenna) LxWxH: 22x13.5x1 mm Antenna quality: Lx: 60x10mm Scope of delivery: 1 piece DCF receiver module with antenna connect: Ground = Pin G Operating Voltage = Pin V data = pin T Power On/Off = Pin P1 Important note: PIN P1 is an on/off switch and must be set to logic low. The package includes: 1*Receiver module