In this video, Pablo Sala (KI7OJL) shows how to build your own all-in-one receiver based on an RTL-SDR. Via RTL-SDR.com.
Tag Archives: receiver
DC40 receiver
Michael LeBlanc has a nice write-up on building a direct conversion radio receiver: In the late winter of 2018-19, I decided to build a receiver that would provide a performance improvement to the regen I built a couple of years ago. I wanted the radio to receive AM and SSB signals between 160m and 20m […]
Qi wireless power receiver from scratch
Vinod made a Qi wireless power receiver using Attiny13, that is available on GitHub: I have only two aims while trying this. The receiver should get powered by the transmitter continuously. I should be able to control the power received by adjusting the error packets, in my case I am trying to keep received voltage […]
Yet another CXA1191 FM radio receiver
Dilshan Jayakody has published a new build: This is simple, but very high quality CXA1191S based FM radio receiver system. In this design we use Sony CXA1191S as FM tuner and TDA2003 as an audio amplifier. This receiver system is designed to work with 12V DC power source and it delivers approximately 6W audio output […]
A 2-channel receiver that can save your old Motorola TX
Boris Landoni writes about a new open source project 2-channel receiver that can save your old Motorola TX: A 433,92 MHz Receiver that can be paired with a maximum of 10 Motorola TX each with relay outputs that can be set both in monostable or bistable mode. Although we have had high security encoding for several […]
Forty-9er Shield
m0xpd writes: I’ve been tinkering with a quick lash-up of Wayne Burdick, n6kr’s famous ‘Forty-9er’ receiver, implemented on an Arduino shield and tuned by one of my DDS systems. Regular readers will remember how I tried running my Kanga / m0xpd Sudden-inspired receiver shield under the control of the new DDS on the Internet of […]
19th century radio technology meets the Beaglebone
Ashish Derhgawen built a coherer-based receiver with a simple decoherer mechanism, and connected it to a Beaglebone to decode the received signals: In my last post, I described how I made a spark-gap transmitter and receiver. For the transmitter, I used a car’s ignition coil to produce high voltage sparks, and for the receiver, I […]
Two transistor superheterodyne shortwave receiver
Dilshan Jayakody writes: This is two transistor and two IF transformer based superheterodyne receiver which is designed to receive 13m to 41m bands. With quiet good external antenna this receiver performs similar to commercially available shortwave receiver and its audio quality is in very satisfactory level. This receiver can be constructing on PCB, breadboard or […]
Steam turret tank R/C controller
An instructable for a PIC based R/C servo controller by Steamhobby: The controllers capture the R/C receiver output, optionally manipulate the samples, then regenerate new servo control signals. As such, they greatly enhance what is possible with cheap servos. They were created for my Steam Turret Tank Instructable. Via the contact form. Check out the video after […]
Trio JR-310 and TX-310 restoration project
Dilshan Jayakody did restoration of TX-310 transmitter and JR-310 receiver step-by-step: I got Trio (now Kenwood) JR-310 and TX-310 SSB receiver and transmitter pair recently. When it comes to me both receiver and transmitter are in very bad shape and most of the PCBs and chassis are covered with dust and some of the components are very […]
VHF FM Aircraft receiver
VHF FM Aircraft receiver: VHF FM Aircraft Receiver is a superregenative receiver developed for listening to FM transmitters but also tunes the aircraft band and the top portion of the FM broadcast band. Receives both AM and FM (107mHz to 135 MHz). You can use this receiver with the any FM transmitter. The receiver is […]
Portable software defined transceiver: Roofing filter
Jason has been working on a portable software defined transceiver design for the past year. Every day this week he’ll discuss a different part of the hardware in a series of guest posts. You can chat with the designer in the forum. Today’s post is about the roofing filter. The term roofing filter is used […]