Johnson's Techworld

What is AllStar in Amateur Radio? AllStar is a way of linking FM amateur radios to AllStar nodes so that digital voice is sent using Voice over Internet

What is a Cross Yagi? Many of you would have heard the term Cross Yagi in discussions among amateur radio satellite communication enthusiasts. A cross yagi is nothing

Doppler Tuning for International Space Station International Space Station has a low earth orbit and unlike the geostationary satellites, needs orbit tracking if you have to either contact

Morse Code Practice Session 8 We have covered up to EISH, TMO, AN, UD, VB, W,G and R,K in Morse Code for Ham Radio Part 7. Now we

What is Special About ICOM IC-705 Ham Radio? Today I just checked Google Trends for Amateur Radio and found that ICOM IC-705 is occupying second position and Parks

What is V Antenna? Every radio amateur who has operated an HF radio will be familiar with the inverted V dipole antenna as it is often the first

Half Wave Dipole Antenna Here is the transcript of the video shown above: Half wave dipole antenna requires two supports, at either ends, one is here, and another

How to Build an Inverted V Dipole Antenna? Here is the transcript of the video shown above: Today we will discuss about the inverted V antenna, which is

What is T-Bias/Bias Tee for Antenna Pre-Amplifier? T-Bias/Bias Tee is also known as DC injector. When you have a remote antenna pre-amplifier to boost weak signal, T-Bias or

Wi-Fi Range Extender in Action Wi-Fi internet router is commonly used in many households for sharing a common high speed internet connection. But often it so happens that