Author: iz4wnp

D2FJZ Angola. From DXNews.com
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D2FJZ Angola. From DXNews.com

Paulo, CT1FJZ is currently active again from Angola as D2FJZ., D2FJZ Angola. From DXNews.com, ,

Why is Coax 50 Ohms?
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Why is Coax 50 Ohms?

Why is Coax 50 Ohms? Antenna 3 Element Yagi Antenna with 30/40 Loop Dipole Adder – SteppIR December 28, 2019 No comments 16 ft boom;…

ARRL ARES Volunteers Standing By to Assist if Needed in Wake of Nashville Blast
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ARRL ARES Volunteers Standing By to Assist if Needed in Wake of Nashville Blast

ARRL Amateur Radio Emergency Service (ARES) volunteers remain ready to deploy in Williamson County, Tennessee, in the aftermath of an apparently intentional explosion early on…

Il Modulo Avnet AVT9152
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Il Modulo Avnet AVT9152

Le applicazioni IoT richiedono requisiti stringenti in termini di bassa potenza e package compatto. In tal senso il modulo Avnet AVT9152, che combina le tecnologie…

I motori brushless DC
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I motori brushless DC

Oggigiorno la presenza dei motori brushless DC in molte applicazioni ha portato i produttori di semiconduttori alla realizzazione di dispositivi dedicati al loro controllo per…

My Favorite Amateur Radio & Video Gear Of 2020
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My Favorite Amateur Radio & Video Gear Of 2020

Wrapping up 2020 with a recap on my favorite things! This list includes both gear for ham radio and video creation. I hope you enjoy…

Icom AH-705 Announced on Christmas
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Icom AH-705 Announced on Christmas

AH-705 HF/50 MHz Automatic Antenna Tuner Features Covers the 1.8 MHz to 50 MHz bands, using a long wire element 2-way power sources using alkaline…

Stadio di alimentazione per FPGA
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Stadio di alimentazione per FPGA

Questo articolo descrive i requisiti tipici da soddisfare nel progetto di uno stadio di alimentazione per FPGA. Si prenderanno in considerazione due famiglie di prodotti…

Merry Christmas and A Brexit New Year!
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Merry Christmas and A Brexit New Year!

  Well this year has certainly been one to remember, mostly for all the wrong reasons, however the extra time indoors has reignited people’s love…

Solar Flux and Fast Wind Boost for the Holidays | Solar Storm Forecast 12.24.2020
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Solar Flux and Fast Wind Boost for the Holidays | Solar Storm Forecast 12.24.2020

Solar Flux and Fast Wind Boost for the Holidays | Solar Storm Forecast 12.24.2020 Antenna MONO 3 40 MOXON January 14, 2017 No comments MONO…

Reacting to Capacitance, Inductance, Resistance, Frequency
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Reacting to Capacitance, Inductance, Resistance, Frequency

Reacting to Capacitance, Inductance, Resistance, Frequency Antenna W4OP Loop Antenna January 12, 2017 No comments It seems that more and more, amateurs are facing increasingly…

New Product MFJ-4713
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New Product MFJ-4713

This MFJ-4713 HF 4-Position Remote Antenna Switch lets you switch between four antennas remotely. Covers 1.8 to 30 MHz. Run one coax from the indoor…

Ham radio and Linux – Stop your radio from automatically becoming the default audio device.
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Ham radio and Linux – Stop your radio from automatically becoming the default audio device.

A simple change to make, it saves me time manually setting my default back to the computer every time I power up or plug in…

Small Circuits Revival – Relè ad alta efficienza energetica (Parte 2)
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Small Circuits Revival – Relè ad alta efficienza energetica (Parte 2)

Il seguente articolo rappresenta il sequel di “Small Circuits Revival – Relè ad alta efficienza energetica”, tratto dal magazine Elektor e pubblicato in Firmware 2.0…

Il regolatore DC/DC µModule
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Il regolatore DC/DC µModule

Un regolatore a tre uscite in un package a montaggio superficiale da 15 mm × 15 mm × 2,8 mm sostituisce fino a 30 componenti discreti. Il…

Merry Christmas and Happy New Year 2021. From DXNews.com
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Merry Christmas and Happy New Year 2021. From DXNews.com

DXNews wishes all our subscribers and viewers a Merry Christmas and a DX filled 2021., Merry Christmas and Happy New Year 2021. From DXNews.com, ,

FM/F6BCW Martinique. From DXNews.com
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FM/F6BCW Martinique. From DXNews.com

Didier, F6BCW is currently active from Martinique, IOTA NA-107, as FM/F6BCW., FM/F6BCW Martinique. From DXNews.com, ,

Good news from Austria and Germany  ( DL and OE )
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Good news from Austria and Germany ( DL and OE )

Thanks to the constant efforts on the part of the ÖVSV, the Austrian telecommunications authority has announced clearance for the 630 m band and for the 60…

Bob Fontana, AK3Y, Wins the December 2020 QST Cover Plaque Award
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Bob Fontana, AK3Y, Wins the December 2020 QST Cover Plaque Award

The winning article for the December 2020 QST Cover Plaque award is “The Tuna Tin S — A Bare-Bones Synthesized QRPp Transmitter,” by Bob Fontana, AK3Y.  The QST Cover Plaque…

Best Ham Radio Brands for 2021
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Best Ham Radio Brands for 2021

If you are a beginner in Ham Radio, you might be wondering what the Best Brands are for Ham Radio in 2021. In this video…

La rivoluzione delle reti LoRaWAN nelle applicazioni IoT Industriali (IIoT)
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La rivoluzione delle reti LoRaWAN nelle applicazioni IoT Industriali (IIoT)

Il protocollo LoRaWAN è una specifica LPWAN (Low Power Wide Area Network) derivata dalla tecnologia LoRa e standardizzata a cura della LoRa Alliance. Recentemente emersa…

5H3UU Tanzania. From DXNews.com
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5H3UU Tanzania. From DXNews.com

Sergey, UT8UU will be active as 5H3UU from Tanzania, during first half of August 2021., 5H3UU Tanzania. From DXNews.com, ,

Super LY4A
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Super LY4A

LY4A View to dream land 3el 80m Fullsize yagi 27m boom, 160m 1/4 GP 42m height, 6el 20m yagi 21m boom 4el 20m fixed to…

“A Day At MFJ.” How Their Products Are Made And How Quality Is Job
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“A Day At MFJ.” How Their Products Are Made And How Quality Is Job

“A Day At MFJ.” How Their Products Are Made And How Quality Is Job Antenna HexBeam SP7IDX Technology assembly April 15, 2020 No comments Read…

ISS Slow Scan TV event 145.800 MHz FM
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ISS Slow Scan TV event 145.800 MHz FM

An ARISS Slow Scan TV (SSTV) event is scheduled from the International Space Station (ISS) for December 24-31. This will be a special SSTV event…