Personal-pocket-pager
When activated, the transmitter emits a 49.890-MHz AM RF carrier signal. The receiver detects, amplifies, and decodes the RF signal, which subsequently activates a piezo buzzer. The receiver is compact enough to be carried in a pocket or placed on a workbench. Additionally, the transmitter is also small and easily fits into a pocket for quick access.
The circuit consists of two main components: the transmitter and the receiver. The transmitter operates at a frequency of 49.890 MHz, utilizing amplitude modulation (AM) to encode information onto the RF carrier wave. It typically includes an oscillator circuit, which generates the RF signal, and a modulator that combines the audio or control signals with the RF carrier. This transmitter can be powered by a small battery, ensuring portability.
The receiver is designed to be sensitive to the 49.890 MHz frequency, incorporating a radio frequency front-end that includes an antenna for signal reception, a band-pass filter to isolate the desired frequency, and an amplifier to boost the signal strength. Following amplification, a demodulator extracts the original signal from the RF carrier, allowing for the activation of the piezo buzzer, which provides an audible alert or notification.
Both the transmitter and receiver are compact devices, facilitating ease of use in various applications, such as remote control systems, alarms, or wireless communication setups. The small size of these components makes them suitable for portable applications, allowing users to carry the transmitter conveniently in a pocket while having the receiver readily accessible on a workbench or in a similar environment. Overall, this system exemplifies efficient design in wireless communication technology.When activated, the transmitter sends out a 49.890-MHz, AM rf carrier. The.receiver detects, amplifies, and decodes the rf signal, which, in turn, activates a piezo buzzer. The receiver is small enough to carry in a pocket or sit on your workbench. The transmitter is also small and fits easily into a pocket for quick access.
The circuit consists of two main components: the transmitter and the receiver. The transmitter operates at a frequency of 49.890 MHz, utilizing amplitude modulation (AM) to encode information onto the RF carrier wave. It typically includes an oscillator circuit, which generates the RF signal, and a modulator that combines the audio or control signals with the RF carrier. This transmitter can be powered by a small battery, ensuring portability.
The receiver is designed to be sensitive to the 49.890 MHz frequency, incorporating a radio frequency front-end that includes an antenna for signal reception, a band-pass filter to isolate the desired frequency, and an amplifier to boost the signal strength. Following amplification, a demodulator extracts the original signal from the RF carrier, allowing for the activation of the piezo buzzer, which provides an audible alert or notification.
Both the transmitter and receiver are compact devices, facilitating ease of use in various applications, such as remote control systems, alarms, or wireless communication setups. The small size of these components makes them suitable for portable applications, allowing users to carry the transmitter conveniently in a pocket while having the receiver readily accessible on a workbench or in a similar environment. Overall, this system exemplifies efficient design in wireless communication technology.When activated, the transmitter sends out a 49.890-MHz, AM rf carrier. The.receiver detects, amplifies, and decodes the rf signal, which, in turn, activates a piezo buzzer. The receiver is small enough to carry in a pocket or sit on your workbench. The transmitter is also small and fits easily into a pocket for quick access.