UHF vs VHF – Differences Explained

UHF vs VHF: The biggest difference is that UHF is line-of-sight, and VHF is not. A UHF signal will quickly weaken after it leaves the transmitter, so using an amplifier isn't necessary.

There is a tendency for people to group all Frequency Modulated (FM) radio into one category.  However, there is a noticeable difference between UHF – Ultra High Frequency and VHF – Very High Frequency. It’s not just the number that changes, it’s also their intended purposes. The biggest difference is that UHF is line-of-sight, and VHF … Read more

What is Frequency Response in Headphones?

What is Frequency Response in Headphones: Frequency response in headphones is one of the key specifications for any pair of headphones. A frequency response graph represents how well (or poorly) a set of headphones can reproduce sound across all audible frequencies.

Frequency response in headphones is one of the key specifications for any pair of headphones.  A frequency response graph represents how well (or poorly) a set of headphones can reproduce sound across all audible frequencies. Before we continue, it’s important to note that frequency is measured in Hertz (Hz), or cycles per second. Humans can hear … Read more

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 Is A DX Cluster?

What is a DX Cluster? A DX Cluster is a gathering of nodes that amateur DX hunters can use to communicate about DX they have worked or heard. It's composed of a main computer, which gathers and stores, and distributes information sent by ham radios to it.

What is a DX Cluster? A DX Cluster is a gathering of nodes that amateur DX hunters can use to communicate about DX they have worked or heard. It’s composed of a main computer, which gathers and stores, and distributes information sent by ham radios to it. Thousands of nodes are linked together via the internet … Read more