The use of an isolation interface between the radio and the pc is higly recommended,in order to avoid the problems that could be caused from ground loops. This project includes schematic and assembly instructions
A LiFePO4 battery box build project made with 25Ah 3.2V LiFePO4 prismatic cells, 40A 4s1p BMS with Bluetooth, 10A Buck/Boost converter
Tables for keyboardsm, montiros, mouse for PC, SUN, MAC, USB,mini usb, DVI, FireWire, RS232, Digital Flat Panel and EVC configurations
A 50 MHz stable and small power amplifier, suitable for portable and domestic use. This RF Power amplifier delivers 900W with used pair of tubes primary installed into amplifier.
Construction of an antenna for experimental satellite communication, 8el. (435 Mhz) x 4el. (145 Mhz) Satellite Yagi crossed. No difficulty to built this antenna. Except the gamma match. that requires a little more attention
Online antenna calculator for homemade double biquad antenna for UMTS 3G 4G WiMAX WiFi frequencies. Article includes also a simple biquad antenna for 4g
Well, firstly the 12 Volt source will typically vary anywhere from 11 Volt to 15 Volt, and then a battery needs a controlled charge current and voltage, which cannot result from connecting it directly to a voltage source.