Antenna selector circuit diagram electronic project


Posted on Feb 6, 2014

This antenna selector circuit diagram electronic project is designed using common electronic components and allows switching between two FM antennas via a logic signal. Gates IC1b and IC1a provide switching and interface between the logical form of 5 and 12 V supply voltage, required for selection. When input A is logic state H, IC1a`s output will


Antenna selector circuit diagram electronic project
Click here to download the full size of the above Circuit.

be L and that of IC1b will be H. In this case, current will flow from the positive supply terminal to IC1a, through T2 R9 and D8; T2 lead and D9 light. When input A is logic state L, then IC1b is L, the current flow from source to IC1b positive connector, through Q1, R7 and D7, then T1 is open and D10 light. Meanwhile, the two relays connected in series, RE1 and RE2, are placed under voltage, their contacts close and VHF signal appear at C input and D output




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Light Control System (OP295)
    Thermometer with 10 LED scale
    A Friendly Charger Schematic for Mobile Phones
    Tracking FM Transmitter Schematics Schematic Diagram
    transformer Single pole AC to DC conversion circuit
    microcontroller Arduino 230v Light bulb dimming
    Decimal Counter Using Two 7-segment displays and an 8051
    trying to improve on the spi bus
    FM Booster Circuit PCB
    3 channel audio splitter
    A delay circuit battery
    Automatic cycle switch circuit 2



    Top