129 Results for "amateur radio"

SatRot - Taking Everyone to Space
Details from SatRot - Taking Everyone to Space
Motivation There has being alot of interest buzzing around ever since the space race started in 1955. Equipments and materials to communicate with satellites especially low earth orbit (LEO) satellites have being expensive and inaccessible....

mchf qrp v6 protable
Details from mchf qrp v6 protable
HF QRP Transceiver ,put battery 12v and ANT can qso. DC IN:9-13V Max:3A Output POWER:<=10w 1 2 3 6 10 12 14 15 24 30 35 40 50 300 440 500 (44dbm) transmit: 160, 80, 60, 40, 30, 20, 17, 15, and meter amateur bands. receive: 3.5-30 mhz nominal including...

STEbus
Details from STEbus
Introduction In 1986, my first boss said "Designing your own computer is a mug's game. You spend ages designing it, even longer debugging it, and end up with a computer nobody else has. So then you have to write your own software, and that takes...

Cyberdeck for 2024 Challenge
Details from Cyberdeck for 2024 Challenge
When my station isn't in a radio silence and doing really Recon passively and connect my wire or buy 5G or Wi-Fi it will have access to my personally trained large language model, convolutional neural network, with several additional modules and an agent...

Geiger Counter
Details from Geiger Counter
As you can see from the picture of the testbench for this project, it is buillt in several smaller blocks. I have been building small circuits for a while, as a chance to play with them and learn about better PCB layout techniques. This also results...

Dollar Store Switch Mode Buck Power Supply
Details from Dollar Store Switch Mode Buck Power Supply
A Dollar Store Switch Mode Buck Power SupplyKarl Berger, W4KRLWhile cruising the aisles of a newly opened dollar store I discovered an automotive cigarette lighter adapter with two USB connectors to charge a cell phone or other device. The nameplate...

O Blinkenbaum
Details from O Blinkenbaum
I had absolutely no intention of posting this on Hackday. It's a small one-day hack (well, two-day, if you count the time waiting for the epoxy to dry) that piggybacks on all the other blinkylight fun I've had. New code? Nope; I'd already abstracted...

Chorded keyboard using Morse code
Details from Chorded keyboard using Morse code
If you look at Morse code, alphabetic characters are represented by one to four units, each of which can be either a "dit" or a "dah". In traditional telegraphy with a single key, "dits" are made by short taps, and "dahs" by longer ones. ...

GPS Driven Clock
Details from GPS Driven Clock
This project re-uses a few boards from previous projects and adds a couple of new ones. Some software ties everything together. Existing boards: LED Matrix Driver boards. On the front side of the chassis. SmallPi SAMD21J18 controller...

Ground station for LoRa satellites
Details from Ground station for LoRa satellites
Ground station for LoRa satellites The arrival of small satellites that used LoRa for telemetry data has meant that less technically qualified persons, with a very low budget, can receive their signals.Thanks to TinyGS, there is now...

Telescope Mount Controller using PERSEUS-9
Details from Telescope Mount Controller using PERSEUS-9
1. Concept As a practical application of my PERSEUS-9 computer for astronomical observation, I decided to create a hardware and software system to display the celestial coordinate system of an equatorial mount. This computer is not suited to perform...

Telescope Controller
Details from Telescope Controller
The role of motorized telescope mount is to provide automated motion control of optical tube assembly around. Regardless of the mount type it needs two axis control, either: equatorial, with one motor running in right ascension plane, and other in declinationor...

Arduino Yún Controller
Details from Arduino Yún Controller
I should add that I'm not a proper developer, but an amateur. This is my very first app for iOS. I will keep improving this app as long as I learn more about programing :)

PIC32 module
Details from PIC32 module
Working on this project was also an opportunity to refute common myth, that modern electronic parts are often to small for amateur applications and making small double sided homemade PCBs is to much of a hassle.

Lightning Direction Finding
Details from Lightning Direction Finding
In an old Scientific American "The Amateur Scientist" column, there was a device for finding the direction of lightning. I really love lightning, and I would have loved to build it, but the plans used CRTs and tubes, so it was nearly impossible. What...

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