Radio Projects

Homebrew SWR and power meter

DIY SWR and Power Meter

First of all, this SWR meter in this article is not exactly homebrew, as I based the circuit on the schematic in the excellent book Arduino Projects of Amateur Radio. Although I bought the book and respect the copyright of the authors I will share my own schematic here. Why? First, the design in the …

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Configuration Utilities for XBee Radios

Xbee Radios I purchased two XBee Series 1 Module (Freescale 802.15.4 firmware) from Adafruit.  These are manufactured by Digi and are low-power module with wire antenna  (XB24-AWI-001).  They have a 250 kbps RF data rates and operate at 2.4 GHz.  These radios use the IEEE 802.15.4 networking protocol and can perform point-to-multi-point or peer-to-peer networking , but as configured here, they do not mesh.  The Digi …

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Raspberry Pi STL in a Box

I promised more details in the future about the Raspberry Pi STL build. Well, against all odds, I’m going to deliver! The project exists purely to solve a problem with getting audio between two sites for a hospital radio station. They currently use a costly dedicated line that’s purely analogue. Imagine the old fashioned exchange …

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Lunchbox Internet Radio Guide

What I’ve made is a radio with 6 buttons and a 20×4 LCD screen. There is an “ON” button, and “OFF”, “BACK”, “PLAY”, “STOP” and “NEXT”. It is connected to the internet via WiFi, and it powered by a USB hub connected through a Pi-Supply ( so I get a proper shut down. And I …

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Raspberry Pirate Radio

This simple hack turns your Raspberry Pi into a powerful FM transmitter! It has enough range to cover your home, DIY drive-in movie, a high school ball game, or even a bike parade (depending on the stragglers). PiFM software not only boldly enhances the capability of your Pi, but does so with nothing more than a …

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