Author: iz4wnp
Ascoltiamo il nostro cuore con un OpAmp
Molti organi del corpo umano utilizzano l’elettricità per funzionare. Cuore, nervi e cervello inviano e ricevono milioni di impulsi elettrici che ne garantiscono il normale…
V3A Belize. From DXNews.com
Marc, V31MA will be active as V3A from Belize in CQ WW DX SSB Contest, 24 – 25 October 2020., V3A Belize. From DXNews.com, ,
100 Inexpensive Paper Clips – Will It Antenna?
The highly requested paper clip installment of Will It Antenna. Where I try and make ham radio antennas out of common household items. Today, the…
CHA MPAS LITE: CHAMELEON DESIGNS A NEW QRP COMPACT PORTABLE ANTENNA SYSTEM
The CHA MPAS LITE is the little brother of the CHA MPAS 2.0 – the most popular Modular Portable Antenna System in the WORLD! The Modular Portable Antenna System (MPAS) is a concept allowing…
FCC Grants ARRL Rules Waiver Request for Fire Emergencies, Hurricanes
The FCC has granted ARRL’s request for a temporary waiver to permit amateur data transmissions at a higher symbol rate than currently permitted by section…
Comunicazione sensorless per motori brushless
In questo articolo per la rubrica Firmware Reload analizziamo un’applicazione con microprocessori AVR ATmega32M1 per motori DC brushless. I motori brushless sono idealmente derivati dai…
Video WRTC 2014. From DXNews.com
The World Radiosport Team Championship (WRTC) is a competition between two-person teams of amateur radio operators testing their skills to make contacts with other Amateur…
9M6NA Labuan Island. From DXNews.com
Saty, 9M6NA will be active again from Labuan Island, IOTA OC – 133,in CQ WW DX SSB Contest, 24 – 25 October 2020., 9M6NA Labuan…
OJ0JR Market Reef. From DXNews.com
Henri, OH3JR will be active again as OJ0JR from Market Reef, IOTA EU – 053, 19 – 26 September 2020., OJ0JR Market Reef. From DXNews.com,…
Hurricane Watch Net Wraps Up Marathon Activation for Two Storms
The Hurricane Watch Net (HWN) just stood down from another extended session — 71 hours of continuous operation — for Hurricane Paulette and Hurricane Sally….
FIRST CUBESAT SATELLITE DEVELOPED BY BRAZILIAN COMPANY FINISHES ENVIRONMENTAL TESTS
The Engineering Model, the first development model, of the NANOMIRAX / CRON-1 nanosatellite carried out its environmental testing campaign at the Integration and Testing Laboratory…
RGO ONE HF transceiver – PREORDER
This is third production lot.Please fill in your data so we can arrange shipping of your brand new RGO ONE shortwave transceiver right after it…
Sperimentiamo con il Software Defined Radio e GNU Radio
Abbiamo introdotto il paradigma Software Defined Radio, evidenziandone i vantaggi rispetto ai classici approcci hardware-based, come maggiore adattabilità, costi ridotti e scalabilità. Abbiamo anche accennato…
Northern Florida ARES Requests Clear Frequencies for HF Nets
Northern Florida Section Emergency Coordinator Karl Martin, K4HBN, is requesting that stations not directly involved in the Amateur Radio Emergency Service (ARES®) response to Hurricane…
Langstone Project – SDR Transceiver using an Adalm PlutoSDR
Antenna LOW NOISE EXPLAINED ( LFA Antennas ) by G0KSC January 08, 2016 No comments A long time has passed since we have to accept…
Promotion video of ICOM IP730D/IP740D
The IP730D series is an innovative hybrid IP radio with licensed professional radio mode for local and nationwide communications. Antenna MonoBeam HF Multibander MB16 10-15-20…
Computer Vision 1.04 – Features Matching
Quando si parla di “riconoscere” un oggetto in un’immagine o un video, in genere la prima cosa che viene in mente sono quei filmati di…
Solar Cycle 25 Is Here. NASA, NOAA Scientists Explain What That Means
This split image shows the difference between an active Sun during solar maximum (on the left, captured in April 2014) and a quiet Sun during…
Our Sun Has Bad Aim with Storms to the East & West | Solar Storm Forecast 09.15.2020
Antenna Antenna Yagi 17 elements 4 bands – GPX Antennas February 15, 2020 No comments Frequency: 7, 14, 21, 28 MHz Number of elements: 7…
5-MHz Interoperability Channels Designated for Wildfires and Hurricane Sally Response
The Federal Emergency Management Agency (FEMA) has announced that two 60-meter channels have been made available, as necessary, for interoperability between US Government stations and US amateur radio…
Marconi Day Award
Marconi Day Award The Calabria DX Team has once again organized Marconi Day and Award for the second year. The following accredited stations of various associations will…
How I designed the Nebula eXtreme Multiband 18m DX Commander Antenna
eXtreme Multiband 18m DX Antenna 18el 6bander – GXP Antenas – 40/20/17/15/12/10 March 29, 2016 No comments GXP Antenas 18el 6bander Bands 40/20/17/15/12/10 Gain…
Rilevamento degli oggetti con TensorFlow sul Raspberry Pi
Il rilevamento degli oggetti (object detection o semplicemente OD) rappresenta una delle principali applicazioni dell’intelligenza artificiale, con impieghi sia a livello di machine che di deep…
YI9WS Iraq. From DXNews.com
Giorgio, YI/IU5HWS is receive new call YI9WS and will be active from Baghdad, Iraq, until 20 January 2021.., YI9WS Iraq. From DXNews.com, ,
VP9/N1SNB Bermuda. From DXNews.com
Jeff, VP9/N1SNB will be active from Bermuda, IOTA NA – 005, 21 – 26 October 2020., VP9/N1SNB Bermuda. From DXNews.com, ,
