Author: iz4wnp

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Le novità sulla ricarica Wireless – Intervista a Tony Armstrong Direttore Marketing, Power Products @ Analog Devices

La ricarica wireless è senza dubbio un requisito per ottimizzare le richieste di alimentazione di un qualsiasi dispositivo portatile. Offrendo inoltre un modo semplice per…

International Space Station Contact 10/12/2018

A video of today’s Space Station contact as heard from the North East of England.

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Your First HF Transceiver, Advice from Jim Heath W6LG

Jim Heath W6LG discusses buying your first HF transceiver if you are new to amateur radio. This is broad, general advice for someone buying a…

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Fox-1Cliff/AO-95 Receiver Suffers Apparent Failure

The receiver on the newly launched Fox-1Cliff/AO-95 CubeSat seems to have suffered a receiver failure that could render the satellite unusable, AMSAT said over the…

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“Emily Calandrelli, KD8PKR—Science Explorer,” profiled by Jen Glifort, KC1KNL, in the January issue of #QST!

From Emily Calandrelli—host of Xploration Outer Space, correspondent on Bill Nye Saves the World, and graduate of MIT—comes the first novel in a brand-new chapter…

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Finished product WSJT-X 2.0 now available

WSJT-X implements communication protocols or “modes” called FT8, JT4, JT9, JT65, QRA64, ISCAT, MSK144, and WSPR, as well as one called Echo for detecting and measuring your own radio signals reflected from the Moon.  These modes were…

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Space Station Contact 10/12/2018

An International Space station Amateur Radio contact is planned with the Thiviers College and Chalais (Dordogne) in France on 10th December 2018. Scheduled time is…

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Floureon FC200 – The Inside Story

So I’ve had the back off these little radios and thought I’ll show you what’s inside…. (Click images to enlarge)   As you can see…

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NASA releases first sounds ever recorded on Mars Read

Listen to Martian wind blow across NASA’s InSight lander. The spacecraft’s seismometer and air pressure sensor picked up vibrations from 10-15 mph (16-24 kph) winds…

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Fox-1Cliff/AO-95 Commissioning Status

Following the launch of Fox-1Cliff/AO-95, AMSAT Engineering began the commissioning process, with the help of AMSAT Operations, on Tuesday December 4. Satellite telemetry indicates that the…

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Algoritmi di filtraggio digitale

La diffusione di microcontrollori a basso costo con funzionalità di DSP (Digital Signal Processing) rende disponibili degli apparati in grado di implementare l’elaborazione digitale dei segnali, e in particolare…

Floureon FC200 PMR446 Handsets

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MFJ Octopus Antenna, MFJ-2100 Making Contacts

VHF 145 MHz Low Loss Bandpass Helical Filter April 29, 2015 No comments     Low Loss Bandpass by Mile Kokotov Basic design of the…

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2018 QST Antenna Design Competition Winners Announced

ARRL has announced the winners of the 2018 QST Antenna Design Competition. “Dozens of entries were received, but only three could win,” said QST Editor Steve Ford, WB8IMY. Requirements…

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Conversione da UART a SPI con FPGA

Molto spesso è necessario poter utilizzare direttamente componenti che abbiano un’interfaccia di tipo SPI come sistema di comunicazione. L’articolo evidenzia come sia possibile una comunicazione diretta su questi componenti, utilizzando la classica seriale RS232 senza uso di microprocessori e relativi FW, ma…

Contest ARI 40/80

CONTEST ARI 40/80 edizione 2018 8-9 DICEMBRE 2018   Regolamento Log Upload    Log pervenuti

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ARRL Bill Leonard Audio Reporting Award Presented in New York City

The 2017 ARRL Bill Leonard W2SKE Professional Media Award for Audio Reporting was presented in New York on December 6 to the producers and staff…

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Your Questions Answered (Mobile Install, Inexpensive Radios, Power Supplies) – Ham Radio Q&A

VHF DVMega and Pi-Star DMR Hotspot – Ham Radio Q&A March 01, 2018 No comments “Don’t let the lack of a repeater keep you from…

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Knacksat team request telemetry reports

Tanan Rangseeprom HS1JAN has requested radio amateurs to help with receiving telemetry data from the Knacksat CubeSat that was launched on December 3. KOn the AMSAT…

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Scopriamo la Spresense Main Board della SONY

In questo articolo andiamo a esplorare “Spresense Main Board”, una scheda di sviluppo molto compatta, basata sul microcontrollore multicore CXD5602 della Sony. La sua maggiore…

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La tecnologia POE nell’illuminazione a led

Power over Ethernet (nota anche come PoE) è una tecnologia nata nell’ambito del networking (e più precisamente in quello delle reti locali cablate, o LAN),…

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Floureon FC200 16 Channel PMR446 Radios

Picked these up recently from eBay, Floureon TC200 16 Channel PMR446 radios. Costing only £14.99 delivered (And I’ve seen a four pack for £26.99). Specs:…

FT8 On A Train!

Video:YouTube/vk3ye

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NEW President Walker II – HOW MUCH?

The NEW President Walker II AM/FM only radio has been seen online on a German retailers website for 298 EUROS which equates to £265……….. GULP!!!!!…

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President Lincoln II+ £70 OFF @ Nevada

An extra special Christmas gift from Nevada as they have the President Lincoln II+ on offer for only £199.95 – That’s a whopping saving of…