The simplest homemade radio

The simplest homemade radio (1) Structure: There are three knobs in the front of the bottom version: on the left is a 365pf air variable, used for tuning. In the middle is a splitter for an old ore machine, with 8 lugs, used to switch the 8 taps of the tuning coil, to Find t

Preliminary Thoughts on Formulating the Road and Bridge…

< p> Preliminary Thoughts on Formulating the Road and Bridge Toll Right Standard 1. The problem In 1989, Guangdong Fokai Expressway Co., Ltd. was established, which opened the prelude for China to raise funds for highway construction through franchising. By the end of 2005,

RF transmit power amplifier circuit

RF transmit power amplifier circuit The RF power amplifier uses the power amplifier chip SBB-2089 from 50 to 850 MHz. In fact, the power gain can reach 20 dB, and the current transmission and reception distance can reach about 150 m. It is more suitable for traffic condition

MediaTek Android solution comes out next year: Marvell …

MediaTek Android solution comes out next year: Marvell grabs the order first According to Taiwan media reports, MediaTek ’s Android platform solution was launched late in the second half of next year. During this gap, Marvell, which specializes in smart phone chip solu

FM Tracking Transmitter

FM Tracking Transmitter Kit (small) This kit is the small version of the FM 108 MHz tracking transmitter and requires experienced and proficient soldering ability. It uses one surface mounted IC and 3 resistors that are mounted on the foil side of the printed circuit board. T

Differential serial interface scheme for high-speed ima…

Differential serial interface scheme for high-speed image data transmission of mobile phones ROHM's Mobile Shrink DataLink (hereinafter referred to as MSDL) differential serial interface solution can greatly save the number of lines in the increasingly complex folding mob