SI4732 All Band Radio Receiver FM AM (MW and SW) and SSB (LSB and USB) with Audio Bandwidth Filter + Speaker + Antenna DIY Kit Description: Use a 3.6v lithium battery Support USB charging Audio output supports headset 3.5MM Support 8 ohm speaker 1W output FM supports earphone antenna Ante...
在无线通信与测量技术领域,外置测量天线作为一种高性能、灵活部署的解决方案,正逐渐成为众多应用场景中的优选。从无线监测系统的精准数据采集,到远程通信设备的信号增强,外置测量天线以其独特的优势,为各行各业提供了更加稳定、可靠的通信与测量解决方案。今日,华信天线小编将分析外置测量天线的多个维度,为大家提供一份全...
you can replace all the components with their nearest value counterparts. The antenna is just a peace of 75 cm single stranded wire, technically a quarter wave whip antenna. The coil L2 is specially important, it’s winded on a ferrite bead. The bead MUST be a RF ferrite bead, else ...
My plan was to design and build soft-box-type lights using foil-backed rigid foam insulation. They would be 16 inches square and 8 inches deep, with a socket and 45-watt ALZO photo CFL inside, and sheer white diffuser cloth on the front. That didn’t work so well, so I went back ...
The BA1404 has the benefit of a wealth of information available online, including plans to help you create a completely legal, low-cost FM stereo transmitter. BA1404 is a complete stereo FM transmitter in a single chip. It operates on as litte as 1.5 Volts! Add a few external components...
Circuit Video Amplifier by transistor BC547 & BC557 Here's a simple video transmitter for VHF TV channel will accept baseband video input, hence it can be driven by most CCD cameras and VCR video outputs. It ouputs roughly 80mW and when used with a 40cm telescopic antenna over 100 meters...