Author: iz4wnp
King Vajiralongkorn receives ham radio callsign HS10A
NBTC and RAST presented the amateur radio callsign HS10A to His Majesty King Vajiralongkorn and provided equipment at a ceremony in the Dusit Palace, Bangkok Thailand’s…
Progettare custodie stampate in 3D per PCB
Molti di voi già conosceranno la suite KiCad, il potente software open source utilizzato dai progettisti elettronici e dai makers per il design degli schemi…
NanoVNA comparison measuring a duplexer – NanoVNA-H4 and SAA-2N
“Is the NanoVNA suitable to measure/adjust a typical antenna duplexer? This video compares the NanoVNA-H4 and the SAA-2N VNAs with a professional VNA (Tektronix TTR506A)….
ISS SSTV October 4-8 on 145.800 MHz FM
An ARISS Slow Scan TV (SSTV) event is scheduled from the International Space Station (ISS) for October 4-8 The event is scheduled to begin on October…
Criteri per la progettazione dei led driver
I diodi a emissione luminosa (LED) sono componenti optoelettronici allo stato solido la cui diffusione è in continua crescita. Pur presentando caratteristiche superiori rispetto ai…
VQ9T Diego Garcia Island Chagos Islands. From DXNews.com
Bob will be active as VQ9T from Diego Garcia Island, IOTA AF – 006, Chagos Islands, (not VQ9ET as announced earlier)., VQ9T Diego Garcia Island…
Video EF8R CQ WW DX CW 2019. From DXNews.com
Video about Magic Mountain EF8R – Winner of the CQ WW CW 2019 Multi Multi., Video EF8R CQ WW DX CW 2019. From DXNews.com, ,
Architettura LoRaWAN
LoRaWAN è una rete con struttura stella di stelle (star of stars topology) senza capacità di instradamento fra i nodi. Il gateway è il centro…
Firmware 2.0 #07 – Test & Measurements
E’ uscito il nuovo numero della rivista tecnica Firmware 2.0. Il focus di questo mese è dedicato al settore Test & Measurements/Makers Laboratory. All’interno troverete…
Lab599 Discovery TX-500 HF 6m
“Hello Operators. In todays video we take the Lab599 Discovery TX-500 QRP Ham Radio to the field for an off grid review of this new…
Get Ready for the 15th Annual ARRL Online Auction!
The 15th Annual ARRL Online Auction will open for an “early bird” preview and registration on Thursday, October 8, and will open for bidding at 10 AM…
Rete LoRaWAN
LoRaWAN è una rete Low Power LAN (LPWAN) che adotta il protocollo fisico LoRa per connettere in modo wireless dispositivi IoT. Si tratta di una…
True Touch di Cypress (Infineon Technologies) IV Generazione
Migliore riduzione del rumore, maggiore accuratezza e linearità, supporto per multi-touch e mouseovering nei dispositivi True Touch Gen4. Soluzioni touch-screen sono presenti oggi in quasi…
WIN A Yaesu FT-891 and Power Supply
The guys over at CHARLIE TANGO have an amazing Christmas raffle where you stand a chance of winning a brand new Yaesu FT-891 and…
Special Pricing on ARRL 5Band WAS and Triple Play WAS Award-Plaque Applications
Beginning October 1, ARRL will offer a 10% discount on all applications for 5Band Worked All States (5B WAS) wall plaques and Triple Play (TPA)…
Chirp Spread Spectrum
La modulazione CSS consiste in una variazione lineare in frequenza, denominata chirp, che spazia nell’intera banda assegnata al canale (tipicamente 125, 250 o 500 KHz)…
Realizziamo un software per Raspberry che calcola il proprio bioritmo
I bioritmi si basano su fattori ciclici dell’uomo. Essi si collocano tra la scienza e la fantasia umana, tuttavia, sono moltissime le persone che si…
Space Station Repeater 29/09/2020 (Yaesu FT-4X)
A short clip of the Amateur Radio repeater on board the International Space Station as heard on my Yaesu FT-4X Handheld radio.
HF Station Grounding and Microcontroller Projects are Next ARRL Webinar Topics
Two well-known ham radio authors and speakers will share their expertise with members in October during ARRL Learning Network webinars. ARRL Contributing Editor Ward Silver, N0AX, will…
Slow-Scan Television Transmissions from ISS Planned – September 30
A Moscow Aviation Institute MAI-75 slow-scan television (SSTV) experiment event is planned for Wednesday, September 30, from 1305 UTC to 1845 UTC, and Thursday, October…
Best Handheld Ham Radio TRI BAND for 2020 – Tri Band Radio Comparison
Antenna 20′ DX Flagpole Antenna | OCF HF Vertical Dipole | 3.5 to 50 MHz No Radials, Stealth, Portable October 03, 2018 No comments OCF…
Former Dayton Hamvention Venue Hara Arena is Being Demolished
Hara Arena, the former venue for Dayton Hamvention® and myriad sports, entertainment, and other presentations over the years, will soon be history. In the wake of…
Chinese Amateur Radio Satellite Launches Delayed
CAMSAT says the CAS-7A launch has been postponed until next May, and CAS-5A until next June. “Because of COVID-19, many things have been delayed,” CAMSAT’s…
Il protocollo LoRa
LoRa (Long Range) è un protocollo che definisce il livello fisico di connessioni radio. Ispirato da una tecnologia radar sviluppata alla fine degli anni 40,…
Otto resistori in cerca di un DAC
C’è un mostro che si annida sotto i letti di molti ingegneri, e il suo nome è Porting Del Codice. E’ una creatura che può…
