XBee Module Configuration Circuit
#XBee
#module configuration
#wireless communication
#RF
#serial communication
#networking
#microcontroller interface
#IoT
#embedded systems
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Jammer circuit
The frequency jammer operates by generating interfering RF noise centered around a 2.45 GHz carrier frequency. As the power of this noise increases, the signal-to-noise ratio of the wireless communication channel decreases, leading to a higher bit error rate until...
Armstrong Oscillator
The Armstrong oscillator is utilized to generate a sine-wave output with a constant amplitude and fairly stable frequency within the RF range. It is commonly employed as a local oscillator in receivers, as a source in signal generators, and as...
DF data transmission module and the super-regenerative receiver module
The DF data transmission module operates at a frequency of 315 MHz and utilizes a surface acoustic wave (SAW) resonator for frequency stabilization, ensuring high frequency stability. The frequency drift remains minimal, at only 3 x 10^-6, across a temperature...
Remote ControlCircuit Through RF Without Microcontroller
This circuit illustrates a remote control circuit diagram using RF technology without the use of a microcontroller. Features include a simple remote control circuit that operates via radio frequency.
The remote control circuit operates by transmitting signals through radio waves, enabling...
RF wireless allarm magnetic switch PIC16F84
This circuit was formed to create a wireless alarm from a normal magnetic contact. By fixing the magnet to the leaf of a door, or swing of a drawer, it is easy to reveal the opening. To transmit the signal...
100 MHz RF oscillator with ATtiny12
A frequency reference for tuning up the RS-232 to 100 MHz RF desktop channel adapter elsewhere on this site, when I found this Saronix crystal oscillator in my junk box. A few minutes with AVRStudio produced an ATtiny12 to make...
Radio Frequency Circuits
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RF oscillator circuit (2N3904)
This basic RF oscillator circuit is easy to build and the components are not critical. Most of them can be found in your junk parts box. The L1 antenna coil can be made by close winding 8 to 10 turns...
Rf power meter
The reflectometer (SWR power meter) operates across three decades, ranging from 100 kHz to 100 MHz. It can be designed to handle RF power levels as low as 500 mW and up to 500 watts.
The reflectometer, also known as a...