Introduction I bought one of these on an Amazon Deal for about $64. I started to wonder if it was actually such a good deal after fighting with it for. read more…
Amateur radio transceivers demand power supplies which have a large current capacity. The average 100 watt radio transceiver requires over 20 Amps when in transmit mode. Overview A linear power. read more…
Are you concerned that your Wi-Fi router is causing cancer? Worried that your smart electric meter is giving you headaches? There is a lot of pseudoscience, crazy theories, and false. read more…
In this article, I’m going to cover Noise Figure, Noise Factor, Noise Power, Receiver Bandwidth, and how they can affect overall radio receiver performance. Contrary to popular belief, these metrics. read more…
The RF world is full of esoteric terminology, and not least of these is characteristic impedance, or Z0. Most coaxial cables have a characteristic impedance of 50 or 75 ohms.. read more…
If you Google the title of this post, I’m sure you’ll come across some results which detail a very simple modification you can make to your IC-7300 which some believe. read more…
I usually have a respectable HF noise floor at home, for which I count myself lucky in today’s sea of cheaply made switching power supplies. However, we were expecting some. read more…
Coaxial cables, antennas, amplifier inputs and outputs, typically have either a 50 ohm or 75 ohm characteristic impedance. Why? It all comes down to the characteristic impedance value for maximum. read more…
Radioddity GD-77 Setup
Introduction I bought one of these on an Amazon Deal for about $64. I started to wonder if it was actually such a good deal after fighting with it for. read more…
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Switch-Mode vs Linear Supplies
Amateur radio transceivers demand power supplies which have a large current capacity. The average 100 watt radio transceiver requires over 20 Amps when in transmit mode. Overview A linear power. read more…
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RF Energy Exposure
Are you concerned that your Wi-Fi router is causing cancer? Worried that your smart electric meter is giving you headaches? There is a lot of pseudoscience, crazy theories, and false. read more…
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Noise & Receiver Performance
In this article, I’m going to cover Noise Figure, Noise Factor, Noise Power, Receiver Bandwidth, and how they can affect overall radio receiver performance. Contrary to popular belief, these metrics. read more…
Continue Reading
What is characteristic impedance?
The RF world is full of esoteric terminology, and not least of these is characteristic impedance, or Z0. Most coaxial cables have a characteristic impedance of 50 or 75 ohms.. read more…
Continue Reading
IC-7300 Average SSB power modification
If you Google the title of this post, I’m sure you’ll come across some results which detail a very simple modification you can make to your IC-7300 which some believe. read more…
Continue Reading
Baofeng Cemetary
As of the date of this post, you can get a Baofeng UV-5R for $28, or buy two for $50. Dirt cheap. I bought my first Baofeng UV-5R back in. read more…
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Charger Radiated Emissions
I usually have a respectable HF noise floor at home, for which I count myself lucky in today’s sea of cheaply made switching power supplies. However, we were expecting some. read more…
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Coaxial Cable Length Does Not Change Antenna SWR
I’ve heard this for decades, and I first heard it when I got into CB radio when I was a kid. You’ve gotta to cut your coax to the right. read more…
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Why 50 ohms?
Coaxial cables, antennas, amplifier inputs and outputs, typically have either a 50 ohm or 75 ohm characteristic impedance. Why? It all comes down to the characteristic impedance value for maximum. read more…
Continue Reading