NOTE: I'm really interested in making a Proper Reproduction composited from many scans, so if you have access to an original print, PLEASE contact me!Back in the 30s, the Amateur Radio Relay League released a series of circular slide rules that allow...
Living and operating from a "challenging" QTH does not mean that one cannot take part in Amateur Radio. In my case our garden is too small for huge towers and long wires and there is a hill right behind the house anyway. Instead of feeling discouraged...
Overview Meshtastic can send off-grid message using inexpensive hardware to create your personal mesh. The Station Edition series is a compact Lora device with high power PA (Maximum TX Power: 35dBm@915MHz or 868MHz for Station G1 Edition), Rugged SMA...
Tiny Wireless Capsule CameraA capsule endoscope, also known as a capsule camera, is a tiny camera that can be safely swallowed and passed through the digestive tract. The device uses one or more camera sensors to capture images of the gastrointestinal...
Regular watering is key to successful vegetable and flower growth. Not all gardeners are able to carry water to their precious plants particularly when other commitments take them away from home or when, as is the case with this Amateur Gardener, poor...
Alberto Caballero will host the first Hack Chat of 2020, on Wednesday, January 15. Time zones got you down? Here's a handy time converter! Many of the major scientific achievements of the last 100 years or so have boiled down to problems of picking...
The main idea of the project was to create a wireless network of sensors and actuators (grouped into arbitrary nodes) for data acquisition and control in the automated greenhouse. Although initially it was intended to be used in a hydroponics greenhouse...
Andrew County Museum • 202 E Duncan Drive • Savannah, MO • 816-324-4720 • andrewcountymuseum.org Total Eclipse Watch Party & Tailgate. 11:30-2 pm. Food, drinks, updates, and activities. $4 per person includes hamburgers,...
Basics of POCSAG POCSAG is a radio data protocol for sending messages to pagers. It was developed by the UK Post Office Codes and Standards Advisory Group (POCSAG), where it gets its name. On the air, it is a frequency shift keyed signal that carries...
To manufacture these souvenirs, we deliberately purchase non-functional Geiger tubes on the Ukrainian market that could be sold on the global DIY market as part of commercial products. As participants in the DIY market, we see how the same broken or...
Introduction Polo and the Pony Express: The T Acronyms Primary Purpose Restoring Communication When Our Infrastructure is Down Secondary Purposes The Ancient Library A Clarkeian Satellite/Spacecraft Analog The Trill Tethered Rocking Orbiting Tracker...
The problem: Currently, remote continuous environmental data gathering has been scoped to very few organizations or companies with large budgets and staff, and sometimes ulterior motives. It is my thought, that bringing these abilities to more individuals...
There are three components to this project, aside from a Pi Zero.1: A low-pass filter. The Pi produces a square wave which contains a lot of harmonics. If I'm transmitting on 14 MHz then I'm also transmitting something on 28 MHz, 42 MHz, 56 MHz, and...
Right now, this device is built with two uses in mind:Amateur Radio paging system. Something in the lines of a one-way system (for now): a base station made of a CC1101 plus a hefty power amp broadcasts messages over 70cm band to small modules people...
Michael Bretti joins us for the Hack Chat on Wednesday, December 11, 2019 at noon PST. Time zones got you down? Here's a handy time converter! When you look back on the development history of any technology, it's clear that the successful...