GNSS Frequency Bands and Accuracy
Global Navigation Satellite System (GNSS) is one of the most important innovations in the 20th century. It is at the heart of many systems and technologies. GNSS encompasses many different …
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Mbps vs MBps – What’s the difference?
Mbps is short for Megabit-per-second. MBps is short for Megabyte-per-second. Both represent the amount of data transferred per second across a wired or wireless communication channel. Note the small ‘b’ …
Does Logitech G915 work with Multiple Devices?
Is it possible to connect the Logitech G915 keyboard to multiple laptop or PCs at the same time? ✅ The answer is yes The G915 supports two wireless technologies: Lightspeed …
Mbps to kbps – Multiply by 1000 or 1024?
The question comes up often and in this post we clear the confusion. The quick answer is: Multiply Mbps by 1000 to get kbps. Conversely divide kbps by 1000 to …
Wi-Fi Receiver Sensitivity
The sensitivity of a radio is the minimum signal level at the input port required to demodulate and decode a signal. Wi-Fi Receiver Sensitivity is specified in dBm and varies …
What is a Bias Tee?
A bias tee or Bias-T is a three port network consisting of an inductor and capacitor as shown in the picture below. The three ports are: Applications in Signal Reception …
dBm to Internet Speed
In this post we show how Internet Speed (Mbps) varies with the received signal strength or RSSI (dBm), using measurements. Wi-Fi Network Planning When planning your Wi-Fi network, use this …
Do Resistors in Parallel have the Same Current?
Parallel resistors do not have the same current flowing through them. The current through each resistor depends on Example Current Calculation For a three resistor network (R1 = 10 Ω, …
Longest Range TV Antenna (Do the marketing claims make sense?)
The range of TV antennas seems to increase with every passing year. The last time I checked it was 200 miles. This year in 2023 we now have 300 mile …
What is the ADC Sampling Rate of the Raspberry Pi?
In this post we clarify the sampling rate numbers of the Raspberry Pi Pico’s Analog-to-Digital Converter (ADC). The data sheet for the RP2040 is used for reference. Here is a …