RF Signal Source – Part 1 (Introduction)

RF Source Introduction In the “Building our Own Measurement  Tools” series, you may have noticed that the title implied multiple tools.  In a future series, we are going to cover the other half of the equation.  The RF source. In this article, we will briefly cover the RF Source prototype we built. The first prototype […]

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RF Power Meter – Part 5 (Mobile Application)

Mobile Power Meter Application So in this article, we’re going to switch from the power meter itself to the mobile application that serves as the remote display.   The power meter application is a cross-platform application for Android, IOS, MacOS, and Windows.  The application starts up by searching for any and all power meters that are […]

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RF Power Meter – Part 4 (Calibration)

Background Welcome to Part 4 in the RF Power meter series. This week it’s all about calibration. In the original design of the RF Power Meter, I had planned on using slope and intercept values from the datasheet to calculate the displayed RF level.  The approach was simple to implement, however, the slope of the […]

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RF Power Meter – Part 2 (Hardware)

Hardware Description and Schematics The RF Power meter is made up of the Linear Technologies LT5538 Power Detector and the Nordic Semiconductor nRF51822 Bluetooth SOC module. Linear Technologies LT5538 The Nordic Semiconductor nRF51822 SOC module or more affectionately the RFduino RFD22301 is used as the microcontroller and Bluetooth LE module. The RF power detector module […]

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RF Power Meter- Part 1 (Introduction)

Introduction This is a multi-part series on the RF power meter we developed for insertion loss testing.  While this series of articles is not going to cover all aspects of the project, we’ll start with the why.  In future articles, we’ll cover the hardware, schematics, battery options, Bluetooth contamination of measurements, calibration and mobile software. […]

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Welcome

Welcome! This blog will focus specifically on wireless trends, RF equipment, electronics, test equipment, software, security and everything in between. I’m not sure what direction or focus this blog will take long term, but we would appreciate any and all feedback. Here are a few topics that we will be covering in the future: — […]

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