Why are dBm values negative?
Most measurements on phones or laptops for signal strengths of Wi-Fi, 4G or 5G networks are negative dBm values. The reason for this is that the received signal power is …
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dB vs dBm – What’s the difference?
dB is often confused with dBm. They are very different. dB stands for deciBel and dBm stands for deciBel relative to 1 milliwatt. Let’s get into the details. What is …
dB vs Hz – What’s the difference?
dB (decibels) and Hz (hertz) are units used in different contexts and measure different physical quantities. Here is an explanation of each and their differences. Decibels (dB) Definition Decibels are …
Baofeng UV-82 not Transmitting (No TX)
The other day my buddy Dave ran into an issue with transmitting on his UV-82. It didn’t work like it was supposed to. I decided to give him a hand …
What is a RF Filter Module?
An RF (Radio Frequency) filter module is an electronic module used in communication systems to select or reject specific frequency ranges from a signal. It is a standalone hardware block …