Author: iz4wnp

RF SHARK SHORTWAVE RECEIVER KIT
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RF SHARK SHORTWAVE RECEIVER KIT

The receiver works according to the double superhet principle and is designed for the frequency range from 40 kHz to 30 MHz. It is characterized…

CQ WW SSB/CW 2020 Online Scoring Trophy program
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CQ WW SSB/CW 2020 Online Scoring Trophy program

ContestOnlineScore.com and our sponsor Icom America Inc.  are establishing a special award program to encourage the use of scoreboards during international contests. We are currently announcing four…

VisAir QRP
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VisAir QRP

VisAir QRP Antenna Fixing a brand new Cushcraft A3S beam antenna December 15, 2018 No comments Cushcraft A3S  Three Element Beam – 10, 15 &…

The Classic Astatic D-104 Microphone
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The Classic Astatic D-104 Microphone

Let’s take a quick look at the classic Astatic D-104 microphone! Antenna QST Antenna Design Competition Submission Deadline Looms August 01, 2018 No comments The…

A Snake-like Filament Erupts while a Solar Storm Rages | Space Weather News
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A Snake-like Filament Erupts while a Solar Storm Rages | Space Weather News

This week our Sun continues its upward climb in activity with multiple new bright regions on the Earth-facing disk, including a new sunspot region (region…

Scopriamo la Spresense Extension Board della SONY
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Scopriamo la Spresense Extension Board della SONY

Dopo aver dato uno sguardo d’insieme alla Spresense Main Board della Sony, in questo articolo andiamo a scoprire le potenzialità della relativa Extension Board. Si…

RSGB Radio Communication Handbook
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RSGB Radio Communication Handbook

14th Edition Edited by Mike Browne, G3DIH This new edition of the RSGB Radio Communication Handbook has as always been updated and re-written so that…

How to Solder a Wire
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How to Solder a Wire

How to Solder a Wire Antenna AIM 4170D Antenna / Lab RF Analyzer December 08, 2014 No comments   The AIM 4170D antenna analyzer measures…

Grounding and Bonding Redux
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Grounding and Bonding Redux

Grounding and Bonding Redux Antenna 2 Meter & 70 Centimeter Mobile Halo Antenna Project January 13, 2015 No comments “I have wanted to try 2…

My portable RV antenna farm
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My portable RV antenna farm

My portable RV antenna farm Antenna 3 Element Yagi Antenna with 30/40 Loop Dipole Adder – SteppIR December 28, 2019 No comments 16 ft boom;…

Convertire i segnali al giusto livello analogico
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Convertire i segnali al giusto livello analogico

Uno degli ostacoli più frequenti che si incontrano durante la progettazione è la necessità di adattare il livello logico di segnali digitali. Quando si tratta di convertire segnali da…

Convertitori a basso rumore Texas Instruments per progetti ad alta precisione
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Convertitori a basso rumore Texas Instruments per progetti ad alta precisione

Texas Instruments ha presentato una nuova famiglia di regolatori switching DC/DC a basso rumore con compensazione a nucleo di ferrite integrata, che garantiscono ai progettisti…

Build a Homebrew Gainmaster (Again)
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Build a Homebrew Gainmaster (Again)

Video:YouTube/Mike-M0MSN Ever fancied making your very own Gainmaster CB/10m antenna? Well take a look at this excellent video from Mike, M0MSN….

8Q7CQ Maldive Islands. From DXNews.com
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8Q7CQ Maldive Islands. From DXNews.com

Nobby, G0VJG will be active again as 8Q7CQ from Reethi Faru, Filaidhoo Island, Maldive Islands, IOTA AS – 013, 14 – 29 January 2021., 8Q7CQ…

I nuovi MB95F430 di Fujitsu
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I nuovi MB95F430 di Fujitsu

La nuova serie di microprocessori Fujitsu MB95F430 a 8 bit appartiene alla famiglia F2MC-8FX, concepita per impieghi generali. Lo scorso anno Fujitsu Semiconductor Europe (FSEU)…

Lavorare nell’elettronica: come farsi trovare?
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Lavorare nell’elettronica: come farsi trovare?

Trovare lavoro, soprattutto in periodi difficili come quello attuale, non solo è di per sé già un lavoro ma richiede anche l’uso degli strumenti giusti….

Georgia 4L0A. From DXNews.com
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Georgia 4L0A. From DXNews.com

Gia, 4L4WW will be active from Georgia in CQ WW DX SSB Contest, 24 – 25 October 2020, as 4L0A., Georgia 4L0A. From DXNews.com, ,

2021 Hamvention Award Nominations Open on November 1
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2021 Hamvention Award Nominations Open on November 1

Nominations for the 2021 Hamvention Awards will open on November 1. Hamvention will grant awards in the categories of technical achievement, special achievement, amateur radio operator of…

HPA100: un amplificatore HiFi controllato tramite smartphone
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HPA100: un amplificatore HiFi controllato tramite smartphone

In questo articolo viene presentato un amplificatore stereo HiFi senza i classici controlli sul pannello frontale perché gestito completamente mediante uno smartphone. Un’App dedicata, sviluppata con…

39 Years of Legal CB!
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39 Years of Legal CB!

Video:YouTube/104’s World Gary looks forward to the anniversary of legal CB radio in the UK on 2nd November 2020…

Azores Islands CR2X. From DXNews.com
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Azores Islands CR2X. From DXNews.com

Martti, OH2BH will be active from Azores Islands, IOTA EU – 003, in CQ WW DX SSB Contest, 24 – 25 October 2020, as CR2X.,…

KP2B US Virgin Islands. From DXNews.com
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KP2B US Virgin Islands. From DXNews.com

Jaime, WP3A will be active as KP2B from Saint Croix, US Virgin Islands, IOTA NA – 106 in CQ WW DX SSB Contest, 24 –…

DT8A King Se Jong base. From DXNews.com
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DT8A King Se Jong base. From DXNews.com

DS4NMJ will be active again as DT8A from the Korean Antarctic base King Se-Jong on King George Island, South Shetland Islands, IOTA AN-010, in 2021.,…

8Q7RM Kandolhu Island Maldives. From DXNews.com
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8Q7RM Kandolhu Island Maldives. From DXNews.com

Remo, HB9SHD will be active as 8Q7RM from Kandolhu Island, Maldives, IOTA AS – 013, 2 – 29 November 2020., 8Q7RM Kandolhu Island Maldives. From…

Soundcards and the SignaLink USB
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Soundcards and the SignaLink USB

Soundcards and the SignaLink USB  Antenna 2.4 GHz Dual Feed Helix Antenna For QO100 July 29, 2020 No comments Read more Heavy Duty InnovAntennas Quad…