Author: iz4wnp
Propulsione e Potenza nello Spazio
Prima del ventesimo secolo, il viaggio spaziale era in gran parte un volo di fantasia. La maggior parte degli autori in quel periodo non riusciva…
Chameleon CHA-MPAS 2.0 Portable Ham Radio Antenna System
The Chameleon CHA-MPAS 2.0 just might be the best portable Ham Radio antenna that you can get today, due to its versatile configurations and compact…
Release the KrakenSDR!
KrakenSDR is now available for crowdfunding on Crowd Supply. Thank you to all interested parties for your patience while we navigated recent pandemic-related delays. KrakenSDR…
Scouting’s Jamboree-on-the-Air Takes Place this Weekend, October 15 – 17
PHOTO:K2BSA Scouting’s largest event in the world — Jamboree-on-the-Air (JOTA) — takes place October 15 – 17. During JOTA, Scouts and hams around the world,…
Raspberry Pi: lanciare script on boot
Uno degli aspetti più interessanti di Raspberry Pi è senza dubbio quello di poter lanciare script on boot, quindi di avviare un programma interamente scritto…
Mysterious Radio Signal Discovered in Milky Way Center | What Is It!?
Ziteng (Andy) Wang is a PhD student at the University of Sydney. He recently discovered an unusual radio signal coming from the direction of the…
IARU Region 1 ATV Contest 2021 Results
The IARU Region 1 ATV Contest was held on 12/13 June 2021.Due to travel restrictions in some countries caused by the COVID 19 pandemic, the…
10 Progetti con la scheda a microcontrollore Arduino-Raccolta 2020-2021
Cari lettori, vi presentiamo una raccolta di 10 Progetti Fai-da-Te e completamente Open Source da realizzare con la scheda a microcontrollore Arduino. I Progetti sono…
TRI BAND TRANSCEIVER – RS-UV3A
The HobbyPCB RS-UV3A radio module is a 144/220/450 MHz FM transceiver board. The RS-UV3A is a low cost transceiver solution for Packet Radio, repeaters, Echolink…
![Real-time Radio Spectrum Map Database Demo [ Android App ]](https://www.iz4wnp.it/wp-content/uploads/2021/10/maxresdefault-3-1.jpg "Real-time Radio Spectrum Map Database Demo [ Android App ]")
Real-time Radio Spectrum Map Database Demo [ Android App ]
In view of the escalating demand for higher mobile data (from IoT, industry 4.0 applications), there is a growing world-wide interest to improve the radio…
XPA125 Tuner – Any good?
Today I take the XPA125 Tuner and put it through its paces with a 9:1 EFRW Random Wire Antenna Antenna Chameleon Tactical Delta Loop –…
Solar cycle 25 is here and band activity is up!
Showing a bit of what’s happening on the upper frequency bands with the solar cycle finally ramping up. Antenna HF Omniangles HF-28 ( 10 Meters…
Nuove soluzioni di sensori-software con NI e Omega
Farnell, unità commerciale del gruppo Avnet e distributore globale di componenti elettronici, prodotti e soluzioni, ha introdotto sul mercato nuove soluzioni basate sulla configurazione con…
Roamer, il piccolo robot che si ricarica da solo
Il piccolo robot Roamer è un’intelligente dimostrazione di come, anche solo con l’utilizzo di materiali e componenti semplici e facilmente reperibili a basso costo, si…
Using FT8 to demonstrate Antenna Orientations
One man’s observation of different radiation patterns that evolved from choosing different antenna installation orientations. What are your thoughts? Antenna PA0NHC – active, capacitive receiving…
Set up an entire HF station for under $1000?
“A viewer asks: I want a home base station trans/receiver so I can listen till I am licensed. Need an antenna too. But all for…
Regolatori Buck ZVS
Benvenuti a un nuovo appuntamento con la Rubrica Firmware Reload di Elettronica Open Source. Vicor Corporation arricchisce la gamma di regolatori Buck ZVS Picor Cool-Power…
Xiegu X6100 HF/50MHz Portable SDR Transceiver
Xiegu X6100 is a revolutionary self-contained 10 watt HF and 6m SDR transceiver with a large color display, automatic antenna tuner and a built-in high capacity battery. Xiegu X6100 is an ultra-portable SDR transceiver (Software…
Rettificatori SiGe di Nexperia
Il settore dell’elettronica di potenza è in continua evoluzione. I rettificatori silicio-germanio (SiGe) di Nexperia offrono ai progettisti elevati livelli di efficienza, stabilità termica e…
QDX 4-band 5W Digi transceiver
The “QDX” (QRP Labs Digital Xcvr): a feature-packed, high performance, four-band (80, 40, 30, 20m) 5W Digi-modes transceiver kit, including embedded SDR receiver, 24-bit 48 ksps USB sound card,…
What Ham Radio Programming Software Should You use?
“I’m taking a 10,000 FT look at three types of ham radio programing software. There’s so much to unpack here that a quick overview is…
PRAM, il tuo Primo Robot Autonomo Mobile – Parte 3
Nel precedente articolo “PRAM, il tuo Primo Robot Autonomo Mobile – Parte 2” abbiamo descritto il progetto e i principali componenti di PRAM. In questa…
Provisional results IARU R1 50 & 70 MHz CW/SSB Contests
The provisional results for the last IARU R1 50 MHz CW/SSB and 70 MHz CW/SSB Contests are available on IARU Region 1 VHF & Up Contest Robot…
Starlink di SpaceX, il più avanzato sistema di connessione a banda larga per le zone rurali
SpaceX nasce con l’obiettivo di ridurre i costi dell’accesso allo spazio e vanta una grande esperienza nei veicoli spaziali e nelle operazioni in orbita. Ad…
ARRL Continues Its Efforts to Preserve Amateur Radio Secondary Use of the 3 GHz Band
ARRL President Rick Roderick, K5UR, in a written statement on the newly filed H.R.5378 before the US House Commerce Communications and Technology Subcommittee on Wednesday, urged Congress…
