SSTV Frequencies – The Ultimate Guide

SSTV Frequencies - The Ultimate Guide: Slow Scan TV, or SSTV, is a term used to describe the transmission of pictures by radio. It's comparable to early television systems or fax machines. In as few words as possible, this technique uses sound to generate and exhibit an image sent by another source.

What is SSTV?Slow Scan TV, or SSTV, is a term used to describe the transmission of pictures by radio. It’s comparable to early television systems or fax machines. In as few words as possible, this technique uses sound to generate and exhibit an image sent by another source. It’s primarily utilized by amateur radio operators who … Read more

History of ITU Phonetic Alphabet – Explained

History of ITU Phonetic Alphabet - Explained: ITU phonetic alphabet first appeared in 1913 as a set of six audio frequencies, however, the pronunciation was only based on the English language.

What is ITU Phonetic Alphabet?What is the purpose of ITU Phonetic Alphabet? Who created it? Why do we use the ITU Phonetic Alphabet nowadays? The HistoryITU phonetic alphabet first appeared in 1913 as a set of six audio frequencies, however, the pronunciation was only based on the English language. In 1955 first major revision took place and now … Read more

What are the Different Types of Antennas? The Complete List

What are the Different Types of Antennas? The Complete List: Generally, there are three large groups of antennas: directions, semi-directional and Omni-directional antenna. Most antennas fall into one of these three groups.

Antennas are elements that can receive or transmit radio waves. Antenna types vary according to the frequency of the radio waves they are designed for, among other things.Generally, there are three large groups of antennas: directions, semi-directional and Omni-directional antenna. Most antennas fall into one of these three groups. Table of Contents Directional AntennaOmni-Directional Antenna: Semi-Directional Antennas:The … Read more

Understanding Noise Temperature & Communications Relation

Understanding Noise Temperature & Communications Relation: The term Noise Temperature has two rather simple yet distinct meanings in the RF community. This article focuses on its use as a measurement of noise power, whereas another post will explore how it relates to wireless link performance.

The term Noise Temperature has two rather simple yet distinct meanings in the RF community. This article focuses on its use as a measurement of noise power, whereas another post will explore how it relates to wireless link performance. Conceptually, Noise Temperature is not much different than other temperature scales we are familiar with (Celsius, Fahrenheit). … Read more

What is Radio Squelch & Ways to Stop It

What is Radio Squelch: Squelch is the noise reduction system of a Walkie-talkie. The squelch level is used to control unwanted background noise and prevent false triggering from noise when no one is transmitting.

Ever turned on your walkie-talkie and a very odd and annoying sound come through? This is radio squelch.What does “Squelch” mean?Squelch is the noise reduction system of a Walkie-talkie. The squelch level is used to control unwanted background noise and prevent false triggering from noise when no one is transmitting. It’s important to set the squelch … Read more