FCC: Supplier’s Declaration of Conformity Procedures are Now in Effect
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FCC: Supplier’s Declaration of Conformity Procedures are Now in Effect

The FCC is reminding electronic device retailers that Supplier’s Declaration of Conformity (SDoC) procedures are now in effect and being enforced. In an FCC Enforcement Advisory released…

Effetto sonda
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Effetto sonda

In una misura accurata le sonde sono parte integrante, e spesso critica, della catena di misura e non va dimenticato che esse sono tutt’altro che trasparenti…

Boost converter
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Boost converter

Un convertitore switching con autotrasformatore costituisce una soluzione a basso costo e di ridotte dimensioni per la conversione di bassa tensione in alta tensione. Il crescente impiego di dispositivo…

Digital Radio 2019 Report

A yearly progress report of the roll-out of digital terrestrial radio across the EBU Area. MARKET INSIGHTS DIGITAL RADIO 2019 MEDIA INTELLIGENCE SERVICE FEBRUARY 2019…

MFJ-1936T  GROUND ROD, W/CLAMP,+342T+WIRE BUNDLE
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MFJ-1936T GROUND ROD, W/CLAMP,+342T+WIRE BUNDLE

The MFJ-1936 is a HOT new product from MFJ for those who wish to be QUICK with their antenna set-ups!  For those hams on-the-go to their…

ANNOUNCEMENT – FTM-400XD/FTM-400D/FTM-100D PDN
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ANNOUNCEMENT – FTM-400XD/FTM-400D/FTM-100D PDN

Announcement about the new firmware release for the FTM-400XD, FTM-400D, FTM-100D mobiles radio and PDN functionality. VHF D4C – UHF: Update on 1296MHz beacon project…

Handy 5 Elements 1200 Mhz Twin Loop Portable Antenna
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Handy 5 Elements 1200 Mhz Twin Loop Portable Antenna

Description Overview It will be 5 elements twin loop antenna of amateur radio 1200Mhz band for mobile. Decomposed and we try to carry. Connector will…

Are We Entering a Maunder Minimum? [PODCAST]
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Are We Entering a Maunder Minimum? [PODCAST]

“ARRL The Doctor is In” podcast. Listen…and learn! We are at the bottom of the current solar cycle, but what are the long-term prospects for…

ARISS Plans Do-Over of Slow-Scan TV Transmissions over February 15 – 17 Weekend
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ARISS Plans Do-Over of Slow-Scan TV Transmissions over February 15 – 17 Weekend

Amateur Radio on the International Space Station (ARISS) is planning another popular slow-scan television (SSTV) event in the wake of an SSTV experiment last weekend,…

La tecnologia RSFQ
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La tecnologia RSFQ

Da una decina di anni a questa parte un nuovo protagonista si sta affacciando sulla scena delle applicazioni digitali a radiofrequenza. Si tratta della tecnologia elettronica a superconduttori Rapid-Single-Flux-Quantum (RSFQ), un’alternativa molto…

Funzionamento dei principali convertitori DC-DC in CCM e DCM
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Funzionamento dei principali convertitori DC-DC in CCM e DCM

L’elettronica di potenza è presente in ogni sistema moderno, fornire la tensione necessaria ai sottosistemi con il massimo dell’efficienza è il motivo per il quale…

Test Equipment Basics – Ham Nation 389
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Test Equipment Basics – Ham Nation 389

Relief efforts in Cuba, testing equipment, aurora updates. Coordinating emergency communications in Cuba, Dr. Skov with solar weather and an aurora update, testing equipment and…

Radio Hams transfer Crypto ( BitCoin ) Currency on 40m band
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Radio Hams transfer Crypto ( BitCoin ) Currency on 40m band

Radio hams transfer Crypto Currency on 40m band CryptoVibes reports amateur radio was used to send Bitcoin from Toronto to Michigan on 7.077 MHz using…

US Navy Explores Amateur Radio as a Training Adjunct
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US Navy Explores Amateur Radio as a Training Adjunct

The US Navy’s Naval Air Warfare Center Weapons Division (NAWCWD) has adopted Amateur Radio training as a possible new approach to basic RF and electronics…

Un nuovo kit di sviluppo da ST Microelectronics
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Un nuovo kit di sviluppo da ST Microelectronics

Supportando la comunicazione simultanea su BLE e Wireless Sub-1GHz, il kit di sviluppo a dual band ST STEVAL-FKI001V1 offre la flessibilità di immaginare, costruire e…

Corso C avanzato su Raspberry Pi: Gestire le pause di ritardo
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Corso C avanzato su Raspberry Pi: Gestire le pause di ritardo

In questa settima lezione tratteremo delle metodologie per creare delle pause di ritardo. Il Raspberry Pi è estremamente veloce e, a volte, è necessario adattare…

President Bill Service Menu Secrets

Video:YouTube/Klaus R. An interesting video showing differences between the FCC and EU versions of the President Bill along with some ‘service menu’ secrets. In common…

President Bill FCC Teardown

Video:YouTube/MikesRadioRepair Taking a look inside the little President Bill FCC radio. It’s truly amazing what can be packed into a tiny box these days…..

New Light & A Guest Star: Solar Storm Forecast 02-13-2019
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New Light & A Guest Star: Solar Storm Forecast 02-13-2019

“We are finally beginning to quiet down after exiting an extended source of sporadic fast solar wind hitting Earth over the past ten days. We…

Es’hailSat 2 portable reception
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Es’hailSat 2 portable reception

Receiving Es’HailSat 2 from my balcony using *very* minimal setup. Antenna New ! Chameleon Antenna 7.0-54.0 MHz CHA WINDOM 40 March 20, 2016 No comments…

First contact with this new Chinese made FX9B QRP
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First contact with this new Chinese made FX9B QRP

“My first 20 metre contact on the FX9B with a LZ Station. A little thumbling around in the beginning with some settings . I also…

AO-85 Turned Off due to Return of Eclipse Periods and Poor Battery Condition
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AO-85 Turned Off due to Return of Eclipse Periods and Poor Battery Condition

The Fox-1A (AO-85) CubeSat has been turned off until further notice due to return of eclipses and poor battery condition, control operator Mark Hammond, N8MH,…

La Trasmissione criptata dei dati
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La Trasmissione criptata dei dati

La criptazione dei dati è un’elaborazione algoritmica a seguito della quale il contenuto di un file diviene illeggibile. Il file tornerà nelle condizioni originarie solo conoscendo un’apposita password (o chiave) di decriptazione….

CPU Design: Cache che non ti aspetti
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CPU Design: Cache che non ti aspetti

Ogni nerd che si rispetti probabilmente ha sentito per la prima volta la parola “cache” leggendo le caratteristiche di qualche computer sui volantini pubblicitari dei…

BHI Dual In-Line Noise Cancelling Module + President Grant 2

Video:YouTube/Fred in the Shed 2 Fred takes a look at the BHI Dual In-Line Noise Cancelling Module which can make a real difference to those…