ANTENA J PLEGABLE

Por XE1E  Enrique Rodríguez Ll. * Radiador de ½  onda Sección de acoplamiento de ¼ de onda Impedancia de 50 ohms Relación de ondas estacionarias  1.2:1 en VHF y 1.5:1 en UHF Polarización vertical Omnidireccional Ganancia unitaria Material necesario: 1.- 1.5 mts. de cable plano […]

Arduino Bluetooth Basic Tutorial

By Mayoogh_Girish  By Mayoogh_GirishMayoogh GirishFollowMore by the author: Ever thought of controlling any electronic devices with your smart phone ?Controlling your robot or any other devices with your smartphone will be really cool. Here is is a simple and basic tutorial for interfacing Bluetooth with arduinoAdd TipAsk QuestionCommentDownload Step 1: Things You […]

Solar Energy

The Earth receives an incredible supply of solar energy. The sun, an average star, is a fusion reactor that has been burning over 4 billion years. It provides enough energy in one minute to supply the world’s energy needs for one year. In one day, it […]

Testing Your Solar Panels

How to test solar panels to make sure they’re working properly. Procedure For Testing Solar Panels Properly testing your solar panels is a very important but often overlooked procedure. You wouldn’t believe how many people completely skip testing solar panels and forget to confirm their solar power […]

Battery Storage

For when the sun doesn’t shine… A battery stores electrical energy in a reversible chemical reaction. The renewable energy (RE) source (PV, wind, or hydro) produces the energy, and the battery stores it for times of low or no RE production. Most batteries employed in […]

DIY OFF GRID SOLAR SYSTEM

By Open Green Energy Featured Day by day the price of the solar panel falls gradually.But still installation of a complete off grid solar system is costly.So I write this instructable to get all the components of your solar system separately and assemble it all by […]

¿Qué es BrandMeister?

Descripción sencilla Es una red mundial libre de repetidores de tecnología DMR, para su uso en las Bandas de Radioaficionados. Todos ellos se interconectan a través de unos servidores en Internet, que se llaman «master». Los master se interconectan entre sí en una estructura en […]

Playing with Pi-Star

Introduction Pi-Star is great software for digital voice hotspots and repeaters. It can handle DMR, D-STAR, and YSF, as well as P25, NXDN, POCSAG, and some cross modes when used with a multi-mode digital voice modem that supports those modes. Andy Taylor, MW0MWZ, the main […]

DMR (Digital Mobile Radio)

DMR (Radio móvil digital): Es una norma de transceptores móviles digitales específica para los usuarios de móviles profesionales (PMR, Professional Mobile Radio). Es desarrollada por el Instituto Europeo de Normas de Telecomunicaciones (European Telecommunications Standards Institute, ETSI) y ratificada por primera vez en 2005. Nace con el fin de […]

DMR-MARC Network

What Is The DMR-MARC Network MARC stands for Motorola Amateur Radio Club Worldwide Network. It is one of the original DMR network coordinators and is still to this day extremely popular and reliable. The DMR-MARC Network is connected around the world by master servers which in turn […]

Brandmeister Network

What Is The Brandmeister Network? The Brandmeister Network was born from several worldwide hams and software engineers who joined together to create a digital repeater network consisting of master servers and peer repeaters all over the world. The network has over 1300 repeaters and more than 3000 […]

DMR Repeaters

DMR Repeater Manufacturers As one might expect, there aren’t as many repeater manufacturers as there are mobile and portable makers. Motorola, being the creater of MotoTRBO (aka DMR) technology is by far the most popular repeater on the market and is widely available on the […]

DMR Radios

DMR Radio Vendors Are MANY! Lucky for us, we have many choices when it comes to buying a DMR radio, especially in the portable and handy talkie market. As far as higher power mobile radios go, the vendor list is quite a bit shorter.  So […]

DMR Talkgroup

What Is A Talkgroup? A DMR talkgroup is simply a way of grouping many Radio IDs into a single digital contact. Or put another way, a talkgroup is a method of organizing radio traffic specific to the DMR users that all want to hear the […]

DMR Radio ID

The Radio ID Database The Motorola Amateur Radio Club World Wide Network has been in existence for many years. MARC was the first organization to get a foothold in the amateur radio world and as such, had at one time become the defacto owner of […]

What is DMR?

DMR stands for Digital Mobile Radio and uses the Motorola TRBO protocol for communications. Like other digital modes such as D-Star, C4FM and APCO P25, the TRBO protocol converts your voice into a digital form and sends it out via RF (with other bits of […]

Raspberry Pi 4

Raspberry Pi 4 es oficial: una completa actualización con procesador Cortex-A72, hasta 4 GB de RAM y desde 35 dólares Raspberry Pi es uno de los ordenadores más básicos que podemos encontrar, también uno de los más vendidos de toda la historia informática. Su atractivo […]

Awesome Raspberry Pi

The Raspberry Pi is a series of credit card-sized single-board computers developed in the United Kingdom by the Raspberry Pi Foundation to promote the teaching of basic computer science in schools and developing countries. Official Link: Raspberry Pi Homepage This list is a collection of tools, […]

Re-installing IRLP on a Raspberry Pi

This article describes the steps required to re-install IRLP and Debian onto a Raspberry Pi computer from an existing IRLP node. If you would like a ready-built and configured system, consider ordering one direct from IRLP at http://irlp.net/order.html they also have prefabricated and all necessary parts to […]

Raspberry Pi ADS-B receiver

Raspberry Pi ADS-B Receiver: Build a Live Flight Tracker  by Gus  May 29, 2015  Updated Feb 18, 2019  Beginner In this tutorial we will build a Raspberry Pi ADS-B receiver, this will allow us to track flights within 100-300 miles (160-480 km). The distance your receiver can see will vary […]

Raspberry Pi print server

Raspberry Pi Print Server: Setup a Network Printer  by Gus  Feb 14, 2017  Updated Apr 12, 2019  Intermediate, Servers In this tutorial, I will be going through the steps on how to set up a Raspberry Pi Print Server. The process of getting the software installed is pretty simple, but configuring […]

RPI PROYECTS

Ultimate Raspberry Pi Home Server By DrWilson in Raspberry Pi 1,680,272 4,202 504 Featured DownloadFavorite 2 More Images By [email protected] by the author: About: @theDillonWilson UK STEM Ambassador Certified Raspberry Pi Educator More About DrWilson » Welcome reader. Follow me on twitter here for similar projects; tweet me for any help with […]

RPI MONITOR INSTALL DEBIAN

Custom installation Installation from Debian package Download the latest package from the official repository in Github: wget https://goo.gl/yDYFhy -O rpimonitor_latest.deb If you have issue with GnuTLS: A TLS warning alert coming from Github you can download it with the following command: curl -L https://goo.gl/yDYFhy -o rpimonitor_latest.deb […]

WEBMIN INSTALL RASPBERRY PI

Installing on Debian If you are using the DEB version of webmin, first download the file from the downloads page, or run the command :wget http://prdownloads.sourceforge.net/webadmin/webmin_1.910_all.debthen run the command :dpkg –install webmin_1.910_all.debThe install will be done automatically to /usr/share/webmin, the administration username set toroot and the password to […]

WORDPRESS INSTALL RASPBERRY PI

Raspberry Pi WordPress Tutorial To install WordPress on a Raspberry Pi, you’ll need to install Apache, MySQL, PHP, and WordPress.  Raspberry Pi WordPress Server: Install Apache First, you’ll need to install Apache, an incredibly popular web server program. In a terminal, run: sudo apt-get install […]