RF controlled DC Motor

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This topic has 1 reply, 2 voices, and was last updated 9 years, 8 months ago by Ashutosh Bhatt.

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November 8, 2015 at 2:11 pm #4094

Ashutosh Mohanty
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How to make the antenna for A-434 (434 MHz) Transmitter and Reciever ? The required range is within 10metres. Please be elaborate as this question comes from an amateur hobbyist.

November 9, 2015 at 10:37 am #13471

Ashutosh Bhatt
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the antenna size is based on wavelength and

wavelength = c / frequency

where c = 3×10¹⁰cm/s

so just put ur frequency in above equation. you will get wavelength in cm. then antennal length can be wavelength/2 or wavelenght/4.
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