How to Improve Return Loss or VSWR
In this post we show a simple technique to improve the return loss of an RF component like a mixer or amplifier. A good VSWR to aim for is at …
EIRP Calculator
Use this calculator to find the Effective (or Equivalent) Isotropic Radiated Power EIRP in dBm, dBW and Watt. Enter: Formula EIRP = PTx – LC + GAnt Background Effective Isotropic …
What is the Arduino ADC Sampling Rate?
The maximum sampling rate of the Arduino’s Analog-to-Digital converter is 15 kilo-samples per second or 15,000 samples per second. In this post we get into the details – explain why …
Pi Filter Design For Power Supply (with Calculator)
Power supplies generate noise and voltage ripple. This can interfere with other circuits they are connected to. A Pi filter (configured like the symbol π) is often required to eliminate …
[SOLVED] Corsair HS35 Mic Not Working
The Corsair headset comes with an built-in mic for gaming. It is a versatile product that is compatible with gaming consoles, phones, and computers. Customers get the option to buy …
CLC Filter Calculator
A CLC filter is comprised of a Capacitor-Inductor-Capacitor in a pi π configuration. This creates a low pass filter (LPF). This tool calculates values for each of the components based …
Log Base 3 Calculator
This simple tool computes the value of Log3(x) for any value of x Log3(x) Table x Log3(x) 1 0 2 0.630929753571457 3 1 4 1.26185950714291 5 1.46497352071793 6 1.63092975357146 7 …
Baofeng vs Retevis (which one is better?)
Amateur radio is as popular as ever and there are a number of radio hardware manufacturers with products on the market today. The most popular and cost-effective option is Baofeng. …
Roku Streambar Not Working (Easy Solutions!)
My buddy John loves his Roku devices. Faced with a decision to upgrade his Sonos, he instead decided to invest in a Roku soundbar. Things were going well until one …
[SOLVED] Vizio Subwoofer Not Working
For my friend Aidan, his Vizio sound system is a massive part of his day. In the evening, he enjoys its high-quality sound to either watch TV with his family …
Rise Time to Bandwidth Calculator (with examples)
In this post we compute the bandwidth requirements for a scope considering the rise time of the waveform it is to measure. Enter the rise time in the calculator below …
[SOLVED] Skullcandy Indy Won’t Pair Together
Skullcandy Indy is a well designed set of earbuds with a very high customer approval rating. Many people have had issues pairing with their earbuds. This leads to a lot …
Rigol vs Siglent – which is better?
When it came to picking a scope for the lab, there was a time when the only scopes worth purchasing were Tektronix or Agilent. But that was 20 years ago. …