Author: iz4wnp
Amateur Radio Gearing Up for Predicted “Above Average” Atlantic Hurricane Season
Extended-range forecasts for the 2020 Atlantic Basin hurricane season anticipate above-normal activity, although a low-pressure system now off the coast of Florida could get a jump on…
ARRL Announces New Life 70+ Membership
The ARRL Board of Directors recently voted to create a special Life Membership opportunity for individuals who are at least 70 years old. Starting on…
The Great Geomagnetic Storm of May 1921
99 years ago this week, people around the world woke up to some unusual headlines. “Telegraph Service Prostrated, Comet Not to Blame” — declared the…
ARISS to Attempt Second Test of New Multipoint Telebridge Contact System
Amateur Radio on the International Space Station (ARISS) is hoping to refine its new “multipoint telebridge” system for handling scheduled ham radio contacts between International…
ARRL Seeks Clarification of Amended Amateur Service RF Safety Rules
ARRL has filed a Petition for Clarification addressing two issues arising from amended FCC RF safety rules that go into effect on June 1 for the Amateur…
PiSugar battery: lo shield con batteria per Raspberry Pi Zero
PiSugar battery è uno shield realizzato per Raspberry Pi Zero. Il suo scopo? Offrire un sistema di alimentazione e ricarica per Raspberry Pi Zero in…
Costruiamo un copritermosifone in legno con visualizzazione della temperatura con ESPertino
Lo scopo dell’articolo è soprattutto di tipo didattico. La sua finalità principale è quella di fare conoscenza con il termometro di ESPertino, già in dotazione…
XP2I OX/OZ2I Greenland. From DXNews.com
Henning, OX/OZ2I will be active as XP2I from Greenland, IOTA NA – 018 in CQ WW DX CW Contest, 28 – 29 November 2020., XP2I…
DG5LAC/P Amrum Island. From DXNews.com
DG5LAC will be active from Amrum Island, IOTA EU-042, 18 – 24 May 2020, as DG5LAC/P., DG5LAC/P Amrum Island. From DXNews.com, ,
AFFECTED BY ANTENNA ATTACK
AFFECTED BY ANTENNA ATTACK Three Archi stations on the Big Island of Chiloé, specifically, from Ancud, experienced surprise and dismay this Tuesday morning, when they…
New Beta of FT4 and FT8 software WSJT
WSJT-X 2.2 New Beta of FT4 and FT8 software WSJT Joe Taylor K1JT reports the new beta version of the popular FT4 and FT8 software, WSJT-X…
MFJ 1982MP End Fed Antenna
“This video is about the MFJ-1982MP End Fed antenna. You can find them using the link below. The MFJ-1982 covers 80-10 meters. This antenna can…
Socially Distanced In-Person Exam Sessions Held in US and Norway
With some states starting to relax restrictions on events and activities, the Grant County, Oregon, Amateur Radio Emergency Service (ARES®) held an in-person exam session…
I sensori resistivi
Spesso ci si dimentica di quanto intimamente connessi siano i sensori e la fisica del mondo in cui viviamo. In realtà è qualcosa di ovvio:…
Smart Grid e IoT: come aumentare l’efficienza energetica e ridurre gli sprechi con l’IoT
Il mondo dell’IoT può aiutare con soluzioni più rispettose per l’ambiente? Le smart grid sono alla base di una gestione più efficace e monitorata dei…
Interfacciamento dei sensori: un ponte tra due mondi
Nel mondo dell’IoT (Internet of Things) in cui stiamo entrando a grandi passi, c’è un elemento che la farà da padrone: i sensori. Quale che…
MFJ Duplexer–Two radios, one antenna, or vice versa
Antenna 4 Ways to Use Your AlexLoop Antenna November 18, 2016 No comments AlexLoop Walkham Portable Small Magnetic Loop Antenna The AlexLoop Walkham was designed…
Fox Hunt! (Radio Direction Finding) – Ham Radio Q&A
Antenna Why I LOVE my Antenna Wire Measuring Counter! May 02, 2020 No comments This is an amazing machine made by “Sam” in the USA….
New Chinese amateur satellites expected to launch in September
Two new Chinese amateur radio satellites are now expected to launch on September 15, 2020. The first of these satellites, CAS-7A, is a 27 kg microsat…
Controllo motore tramite encoder
In questo articolo analizziamo le principali caratteristiche di un motore con encoder e alcune possibili configurazioni per la sua gestione. Il motore elettrico, così come…
PMR446 And The ‘Serious User’
Some interesting discussion on various Facebook groups recently about the more serious side of PMR446. As we all know, PMR446 is intended as a low…
HuskySat-1 Transponder is Open
After a week of testing, the transponder on HuskySat-1 is enabled and open for use and testing. It’s fairly sensitive, and 5-10 watts is plenty…
Anytone AT-D578UV III Pro Review
Software New SSTV Software Now Available May 07, 2020 No comments An update of the popular MMSSTV slow-scan television (SSTV) software is now available. Eugenio Fernández, EA1ADA,…
Hamvention QSO Party
Hamvention QSO Party The Dayton Hamvention for 2020 has been cancelled. WWROF, in cooperation with the Hamvention organizers, wanted to create a fun way for people…
Filtered 2400 MHz Driver Amplifier Kits Now Available
This kit has been designed by David Bowman G0MRF and contains all the parts required to drive a PA on 2.4 GHz for QO-100. The completed board…
