Mese: Luglio 2020
Gestire batterie Li-Ion
In questo articolo analizziamo caratteristiche e funzionalità del controller MCP73871 di Microchip. Praticamente tutti i sistemi portatili utilizzano oggi batterie agli ioni di litio o litio-polimeri. L’incremento…
5H1ES Zanzibar Island. From DXNews.com
Elvira, IV3FSG will be active from Zanzibar Island (IOTA AF-032) 19 February – 11 March 2015 as 5H1ES., 5H1ES Zanzibar Island. From DXNews.com, ,
TT8ES Chad. From DXNews.com
Elvira ,IV3FSG currently active from Chad as TT8ES., TT8ES Chad. From DXNews.com, ,
TL8ES Central African Republic. From DXNews.com
Elvira, IV3FSG will be active from M’Baiki, Central African Republic starting next few days as TL8ES., TL8ES Central African Republic. From DXNews.com, ,
XT2SE Burkina Faso. From DXNews.com
Elvira, XT2SE will be active again from Burkina Faso, 1 – 13 June 2019., XT2SE Burkina Faso. From DXNews.com, ,
AMSAT Partners with UMaine’s WiSe-Net Lab to Develop Maine’s First Small Satellite
BY Paul Stoetzer The University of Maine Wireless Sensing Laboratory (WiSe-Net Lab) and AMSAT have signed an agreement to collaborate on building and operating MESAT1, Maine’s first…
More than 12,000 Register Early for QSO Today Virtual Ham Expo
More than 12,000 have registered to attend the first QSO Today Virtual Ham Expo, August 8 – 9, QSO Today host Eric Guth, 4Z1UG, said this week. “Since the…
Mounting a Portable Mast
Review Xiegu G90 Unboxing July 07, 2020 No comments G90 is a portable 20W HF amateur radio transceiver with an SDR architecture with built-in auto…
Next RSGB IOTA Contest: 25-26 July 2020
The RSGB IOTA Contest, using the Islands on the Air concept, was created in 1993. This is now a major international event, attracting thousands of…
UWE-4 News: Successful first demonstration of orbit control on a 1U CubeSat
The University Wuerzburg Experimental Satellite 4 (UWE-4) successfully used its propulsion system in order to conduct orbit control. The 1U CubeSat, developed and built at…
Strutturare un sistema di gestione batterie
Analizziamo in questo articolo alcune indicazioni per organizzare il flusso di progettazione di un sistema di alimentazione a batterie tenendo conto dei numerosi fattori in…
Lab599 Discovery TX-500 QRP Ham Radio Review
GENERAL FEATURES 160-6-meter ham bands; General ‘receive’ coverage 0.5 – 56.0 MHz; All modes: SSB, CW, DIG, AM, FM; High-performance 32-bit floating-point DSP; Current…
New RigExpert Green ZOOM Family of the antenna & cable analyzers
“New RigExpert Green ZOOM Family of the antenna & cable analyzers Dear RigExpert Followers, We are glad to present you a New RigExpert Green ZOOM…
Super Battery Booster MFJ-4416C
Today`s compact 100-watt HF rigs are designed to operate from about 12-16 volts, with output signal distortion, output power problems, and transceiver reset often occurring…
How to use Frequency Scanner to Search UHF MilAir in 2.3 seconds in SDR# using AirSpy R2
VHF 1240-1300 MHz discussed at CEPT SE 40 meeting July 14, 2020 No comments The 69th meeting of CEPT ECC Working Group SE-40,…
Radio Amateurs Help Air Ambulance
Peru’s Radio Club Peruano (RCP) reports that Guillermo Guerra, OA4DTU/XQ3SA, and the Peruvian Relief Net assisted an air ambulance en route to Easter Island on…
Il Bluetooth diventa Low Energy
In questo articolo faremo una introduzione alla specifica Bluetooth Low Energy ed alle soluzioni OEM di ConnectBlue. L’adozione di tecnologie wireless nelle applicazioni di healthcare, fitness, sicurezza…
CB Antenna Shootout
Video:YouTube/104’s Outdoors With CB antennas, the longer the better is the the general rule, but top loading can make a difference. So here we have…
R6AF/P RU6DX/P Sudzhuk Island. From DXNews.com
RU6DX/P will be active again from Sudzhuk Island, IOTA EU – 185 in RSGB IOTA Contest, 27 – 28 July 2019., R6AF/P RU6DX/P Sudzhuk Island….
OSCAR Satellite QSO Party 1 Aug – 22 Sept
The objective of the AMSAT-UK OSCAR Satellite QSO Party is to encourage all radio amateurs around the world to get on the air and make contacts via…
Shakesphere INFL8-HAM Inflatable Dual Band Antenna – Sota – Emergency – Portable
Antenna Ground Radial Wire For Vertical – Ham Radio Antenna August 15, 2015 No comments In this video I show the ground radial wire…
JARL Announces “Canceling” of “Ham Fair 2020”
The Japan Amateur Radio Federation (JARL) will hold the Amateur Radio Festival Organizing Committee on July 16, 2020, at Tokyo Big Sight on Saturday, October…
EMC Basics
In questo articolo indichiamo una serie di precauzioni di base per migliorare la compatibilità elettromagnetica delle apparecchiature progettate. Tutti abbiamo ben presenti le antenne TV, e radio…
XW2DX Laos. From DXNews.com
Mike, XW2DX ex UA0XB is currently active as XW2DX from Vientiane, Laos., XW2DX Laos. From DXNews.com, ,
SpaceX: l’ambizioso progetto di Elon Musk
Il settore dell’esplorazione spaziale è in continua evoluzione. SpaceX ora può inviare esseri umani nello spazio, necessita solo di un mercato di riferimento. Il lancio della…