solid state short wave and vhf receiver
#short wave
#VHF
#receiver
#RF
#solid state
#radio
#communication
#wireless
#electronics
#signal processing
No description available.
VHF UHF Low-Noise amplifiers using MAX2664 MAX2665
These devices feature a broadband low-noise amplifier (LNA) with an integrated bypass switch. The MAX2664 operates within the UHF frequency range of 470 MHz to 860 MHz, while the MAX2665 functions within the VHF frequency range of 75 MHz to...
The R2 Single Sideband Direct Conversion Receiver
The old common-base audio preamp, which has a noise figure of 5 dB, is a clear candidate for improvement in noise performance. A common-emitter configuration with shunt feedback provides an input resistance of 50 ohms, which is preferred by the...
Wireless mains voltage tester
This circuit is designed to test the presence of mains voltage without direct electrical contact with the mains line. The core component of this circuit is the CMOS IC CD4033, which features a five-stage decade Johnson counter and an output...
Wireless Color Sensor
Close to human perception and stable color sensing is a pervasive challenge encountered in various disciplines, such as machine vision for classification and recognition, as well as in intelligent systems like smart illumination systems in home or workplace environments. In...
One kind of wireless remote control circuit
The remote control transmitter consists of a DTMF generator and an FM transmitter circuit. A UM91214B phone-specific integrated circuit (IC) is utilized to generate the DTMF signal, with a 3V power supply provided by a 3V zener diode (D1). The...
Camera VHF Video Transmitter
This is a simple video transmitter capable of transmitting signals up to 50 meters. It can be utilized with cameras or other video sources and allows viewing on VHF channel analog televisions. The video transmitter operates on a supply voltage...
Desheng R-202T type two-band radio circuit diagram
The circuit diagram of the Desheng R-202T type two-band radio is as follows.
The Desheng R-202T is a two-band radio receiver designed to operate on both AM and FM frequencies. The circuit typically includes several key components that facilitate the tuning...
Intelligent home lighting control switch transmitter and receiver circuit
This design aims to create a long-distance wireless remote control switch lighting control system, which consists of a transmission system and a reception system. The system utilizes wireless transceiver modules for RF transmission and reception. The transmitting portion mainly comprises...
LED RF Signal Strength Meter
RF Signal Strength Meter circuits are popular RF measurement devices. This circuit is one of the simplest but very useful circuits that satisfies your desired accuracy. The heart of measurement is high accuracy but easy to use Logarithmic Detector AD8313...