Tag Archives: HF

Difference between HF, VHF and UHF

HF, VHF, and UHF are different frequency ranges used in radio communications. Each range has unique characteristics that make it suitable for different types of applications. HF stands for High Frequency, which covers the frequency range from 3 to 30 … Continue reading

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Building an efficient HF station

Upon discovering the Amateur radio hobby, I quickly realized what we’re the critical components needs to have an efficient HF station. In this case, bigger is not always better and here’s why. Radio waves are electromagnetic energy traveling thru space. … Continue reading

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Beginner’s guide to HF radio propagation

A long long time ago, as a kid, I had the chance to experiment with community band (CB) radios. On some occasions, especially during the summer season, we would receive signals from far far away and occasionally established two way … Continue reading

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PSK-31: Discovering digital mode on HF radio

Wikipedia defines PSK31 as: “Phase Shift Keying, 31 Baud”, a digital radio mode, used primarily in the amateur radio field to conduct real-time keyboard-to-keyboard informal text chat between amateur radio operators”. This story begins on a warm and sunny early … Continue reading

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Understanding HF propagation reports

The very first thing I noticed when I got interested with propagation was a vast number of websites displaying charts and grids related to HF propagation conditions, but I didn’t really understand them at first at first. There are more … Continue reading

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