Johnson's Techworld

Ladder line is one of the three types of twin-lead parallel wire balanced transmission lines used for radiofrequency applications. It is a balanced transmission line unlike the popular

The NanoVNA has been connected to the antenna system using a small SMA to SO 239 jumper cable. PL 259 on the 183 cm long HLF 200 coaxial

Two important updates for my loop antenna with ladder line. One limb of the loop antenna was elevated to about 10 m from ground on fibre pipe which

Measured out a piece of HLF200 coaxial cable with just enough length to connect radio to the ladder line outside. It was 183 cm long. Stripped the outer

Ten meter long ladder line was made using 2.5 sq mm insulated copper wire, 2 inch long pieces of drip irrigation tubes with 6 mm diameter and 20

Pending work is connecting it to the radio with a short length of coaxial cable, balun and tuner. Remaining part of the 60m wire I bought has to

What you are seeing in the video clip are the Qi wireless power transfer logo and the charging location in a car. Many of the new cars have

LAPAN-A2 (IO-86 or Indonesia Oscar 86 ) satellite amateur radio payload controller YD0NXX has been providing special India-ID early activation schedules over the past few weekends. Today it