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  1. Whitebird001

    RF remote control for PC

    Hi all, I'm building an RF remote control for a PC and have the following constraints: -The maximum frequency my scope is able to view is 50MHz, so it sets the maximum frequency of the carrier. In my case it is 43MHz. -The case is 8*10*3cm => the maximum size for the antenna is 10 cm (I...
  2. Whitebird001

    loss resistance of a small loop antenna

    Hi! What is the formula to calculate the loss resistance of a small loop antenna having a square shape?
  3. Whitebird001

    Feeding an antenna

    Hi all, I built a 29,5 MHz oscillator for RF carrier generation. When I connect a 5K resistor between ground and the output of the oscillator, amplitude is divided by 2. That means the output impedance is arround 5K. I also built a 10 cm long antenna made of copper wire. I will use this...

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