A Low-power Wireless Remote Control Transmitter And Receiver
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Closed-Loop Automatic Power Control for RF Applications
This is a circuit for Closed-Loop Automatic Power Control for RF Applications. The circuit utilizes a log detector (AD8318) and a variable gain amplifier (VGA) (ADL5330).
The Closed-Loop Automatic Power Control (APC) circuit is designed to maintain a consistent output power...
Wireless Transmitter
A basic circuit of the transistor UHF radio transmitter with a surface acoustic wave resonator (SAW) is presented. The SAW is utilized as a positive feedback element connected between the transistor's base and an LC network in parallel. In this...
radio mf tx
There has been a longstanding interest in constructing a simple VXO transmitter, though concerns regarding the limited tuning range typically associated with VXOs on busy HF bands have been present. The capability to switch between multiple crystals and cover various...
Latest Wireless Car Alarm circuit diagram and explanation
This circuit is a wireless car alarm system composed of two modules: a transmitter and a receiver. It operates using FM radio waves and is compatible with vehicles that have a 6-12V DC power supply. If the vehicle's power supply...
Radio harmonic detection circuit
The demodulation and detection circuit is a radio AM intermediate frequency (IF) signal amplifier that performs two-stage detection using diode Dr. It extracts the audio signal from the IF carrier detection and subsequently sends it to the power amplifier stage....
Wireless Transmitter
A basic circuit of the transistor UHF radio transmitter with a surface acoustic wave resonator (SAW) is presented. The SAW is utilized as a positive feedback element connected between the transistor's base and an LC network in parallel. In this...
Deluxe Crystal Controlled Transmitter
A high-quality QRP transmitter, named NEXUS 6, is designed to explore issues related to extremely narrow bandwidth communication. This device is not merely a simplified version of a QRP transmitter; it aims to create a cost-effective system that can be...
Circuit of power fm transmitter transistor 2n2218 audio wireless 1KM
This small transmitter can reach distances of more than 1 km under favorable transmission conditions. Modulation can be achieved using a microphone, such as an electret microphone, or another audio source. The transmitter includes a coil made of 5 turns...
Test Transmitter
The Test Transmitter (A3020) is a combination of three circuits designed to test the Subcutaneous Transmitter (A3019) and to analyze surface acoustic wave (SAW) voltage-controlled oscillators (VCOs). The A3020 incorporates the complete A3019 circuit in its central section, which closely...