Radioaficionado desde 1977 con indicativo XE1VOZ y desde 2010 XE1E.

Arduino GPS Clock

ARDUINO By Saddam There are many GPS satellites around the Earth which are used to provide the exact location of any place. Along with the location coordinates (Latitude and Longitude), it also provide other data like time, date, altitude, direction tracking angle etc. We have […]


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 […]


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 […]