HiTech Babaji- Simply Learn

 ANTENNE BASICS & VARIOUS TYPES OF ANTENNA      Hello friends welcome to HiTech BabaJi- Simply Read & Learn . Today we will discuss about Antenna Basics & Various Types of Antennas.       ANTENNA    is a device which converts electromagnetic radiations from space into electrical currents in conductors and electrical currents from conductors into electromagnetic radiations in space. So we can say an Antenna is a metallic structure or conductor or wire  that receives or transmits radio waves.       Antenna comes in different shapes and sizes from little one to really big one. Little one which can be found on your mobile phones and really big one which receives signals from satellites, about 36000 kms away from earth surface and from deep space also.     Antennas may be divided into various categories depending upon physical structure, frequency of operation and their applications. Some of the ...

Electromagnetic or Radio Wave Propagation: The electromagnetic radiated waves Travel through different paths to reach at the receiver antenna. The path taken by the wave to travel from the transmitter and to reach at the receiver antenna is known as wave propagation. The propagation of electromagnetic waves may be divided into the following categories: 1.          Ground Wave or Surface Wave Propagation 2.          Sky Wave Propagation  3.          Space Wave Propagation (Direct wave follow -Line of Sight propagation and indirect or reflected waves have two components: a)          Reflected From Ground b)          Reflected from Troposphere).   Ground Wave Propagation : A ground or surface wave travels along the surface of the earth. These waves are vertically p...

VHF vs UHF - What's the difference // Basic VHF and UHF Fundamentals// What to Look For in a VHF Radio// uhf vs vhf two way radios Today I have taken a very important topic for beginners that is basic difference between VHF and UHF Radios   VHF stands for very high frequency and UHF stands for Ultra high frequency. So today we will discuss about the very high frequency radios and Ultra high frequency radios.   Radios are also known as walkie-talkie in general.     if you are looking for a radio (walkie-talkie) and you are not able to decide whether UHF or VHF radio can serve your purpose then this is going to be very useful for you. VHF Radios :   when we talk about the vhf frequency it means that we are talking about frequency from 30 megahertz to 300 megahertz.   In this most important services are:- 1.    Broadcasting services 2.    Aeronautical and Maritime services 3.    Amateur and Amateur Satellite Servic...