HF Radio Range Calculator

HF Radio Range Calculator

The HF band extends from 3 MHz to 30 MHz. In a previous article, we discussed HF propagation and antennas. In this post, we compute how far an HF signal …

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Can Mobile Phones Read RFID Tags?

Can Mobile Phones Read RFID Tags

Yes, mobile phones can read RFID tags. RFID tags come in different types. One of those types is NFC or Near-Field Communication. Mobile smart phones can read NFC tags. For …

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Baofeng vs. Yaesu

Baofeng vs Yaesu

A walkie-talkie, formally known as a handheld radio transceiver, is a portable two-way radio that can be used for a wide variety of applications including military, amateur radio and personal …

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What is a Bias Tee?

Updated April 2022 A bias tee or Bias-T is one of the most useful Software-defined Radio (SDR) accessories you have likely never heard of. Low Noise Amplifiers are used to …

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MHz to Mbps Calculator

MHz to Mbps

In this post we explain how to convert from Bandwidth (Hz/kHz/MHz/GHz) to Data throughput in terms of Bits per second (bps/kbps/Mbps/Gbps). Formula To calculate the bit rate we use the …

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Modulation Index Formula and Calculator

Modulation Index Formula and Calculator

In this post we present modulation index formula and calculators for three different modulation formats: AM, FM and FSK. Amplitude Modulation Index Modulation index is a measure of the variation …

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Hz to ppm Calculator

Hz to PPM Calculator

This calculator converts the ratio of Frequency variation to Center frequency (Hz/kHz/MHz/GHz) to parts per million (PPM) ppm to Hz Formula ppm = (df/F)*106 where F is the center frequency …

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