Author: iz4wnp

Does 5 x Copper Rods Help my Antenna Field and Inverted L?
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Does 5 x Copper Rods Help my Antenna Field and Inverted L?

So I grounded the fence to the ground to help my Inverted L on 80m. WIll it make any difference? HUGE project this time –…

What’s Inside a 49:1 Unun?
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What’s Inside a 49:1 Unun?

Terence, 2E0IPK, asks “What makes a 49:1 unun and what does 49:1 actually mean? Antenna How to Build Cheap Wire Delta Loop Antenna June 05,…

Chamleon Antenna’s MPAS Antenna, is it as good as a Dipole?
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Chamleon Antenna’s MPAS Antenna, is it as good as a Dipole?

“Not long ago I purchased the Cha Hybrid-Mini from Chameleon Antennas. This is the 500 watt SSB and 250w for CW version and just a…

Utilizzo dei display in progetti con Raspberry Pi
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Utilizzo dei display in progetti con Raspberry Pi

Questo numero di Elektor Books presenta un capitolo tratto dal libro di Dogan Ibrahim “Using Displays in Raspberry Pi Projects” pubblicato da Elektor. Fin dalla…

V26K Antigua Island. From DXNews.com
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V26K Antigua Island. From DXNews.com

Bud, AA3B will be active as V26K from Antigua Island, IOTA NA – 100, 21 – 29 November 2021., V26K Antigua Island. From DXNews.com, ,

Hi-Z Antennas – Manufacturers Showcase
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Hi-Z Antennas – Manufacturers Showcase

K7TJR with Hi-Z Antennas! Antenna Four-square eight directions antenna system, with dummy load power indicator and high power May 24, 2019 No comments 4SQ-8DIR antenna…

Superb Antennas – 40m to 13 cm. from The Antennas-Amplifiers Company
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Superb Antennas – 40m to 13 cm. from The Antennas-Amplifiers Company

Peter Waters G3OJV, introduces this superb range of antennas built to a standard, rarely seen in ham radio. The prices are still competitive and the…

RigExpert Stick Pro – Portable Antenna Analyzer [ Review ]
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RigExpert Stick Pro – Portable Antenna Analyzer [ Review ]

The Rig Expert Stick Pro is an antenna analyzer that will cover HF and 2 meter and 70 centrimeter bands. Frequency range: 0.1 ~ 600 MHz Frequency…

CAIG DeoxIT Contact Cleaners
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CAIG DeoxIT Contact Cleaners

CAIG DeoxIT Contact Cleaners CAIG Laboratories DeoxIT contact cleaners improve the performance and reliability of ALL electronic equipment and parts! DeoxIT cleans contacts, relays, connectors,…

Do Lightning Rods make Antennas Impossible?
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Do Lightning Rods make Antennas Impossible?

Joe, AD2AH, has been asked if lightning rods would present a halo and degate the radiation pattern or a Endfed Antenna? He doesn’t think it…

Attesta le tue competenze nell’Elettronica con la Certificazione Ufficiale Arduino
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Attesta le tue competenze nell’Elettronica con la Certificazione Ufficiale Arduino

Arduino Education offre la possibilità di ottenere la Certificazione Ufficiale di Arduino. La Certificazione è rivolta a tutti coloro i quali, operando nella didattica delle…

Z22O Z21A Zimbabwe. From DXNews.com
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Z22O Z21A Zimbabwe. From DXNews.com

DL7BO and DJ6TF will be active as Z22O and Z21A from Zimbabwe, 2 – 15 December 2021., Z22O Z21A Zimbabwe. From DXNews.com, ,

Progettiamo con Arduino IoT Cloud
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Progettiamo con Arduino IoT Cloud

L’Internet delle Cose (IoT) è la disciplina che maggiormente stimola l’innovazione nel settore dell’elettronica di consumo e del DIY (Do It Yourself, equivalente dell’italiano Fai-Da-Te)…

EMF D-Day For UK Amateur Radio
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EMF D-Day For UK Amateur Radio

  The UK Amateur Licence now requires amateurs to check compliance with EMF exposure limits. Compliance is required from 18th November 2021 for frequencies above…

ICOM America – HRO at Pacificon 2021
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ICOM America – HRO at Pacificon 2021

In this video from Pacificon 2021, Will Jourdain (AA4WJ) talks about all the fun gear at the ICOM America booth. Antenna An Unusual Jpole Antenna…

ARRL Handbook – Assembling a (Ham Radio) Station!
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ARRL Handbook – Assembling a (Ham Radio) Station!

“I’ve been mentioning your years that the ARRL Handbook is a fantastic resource for most amateur radio operations. Today I will be talking about one…

Reviewing the Radioddity GD-AT10G Handheld
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Reviewing the Radioddity GD-AT10G Handheld

Review for the Radioddity GD-AT10G! Radioddity GD-AT10G 10W DMR Radio Featuring 10W high power output, powerful 3100mAh battery, GPS & APRS functionality, supporting both analog…

ARRL 2022 Handbook – Battery Selection for Portable Operation
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ARRL 2022 Handbook – Battery Selection for Portable Operation

In this video, we take a look at the new 2022 Handbook from the ARRL. Specifically, we look at a new chapter on selecting a…

VHF & up Bandplanning 2021
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VHF & up Bandplanning 2021

You can find here the official IARU Region 1 bandplans currently valid from 50 MHz until 250 GHz.Only carefully considered modifications and/or additions have been made during the tri‑annual IARU Region…

Progetto con ESP32- Termostato connesso – Conserva il tuo vino alla giusta temperatura!
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Progetto con ESP32- Termostato connesso – Conserva il tuo vino alla giusta temperatura!

Per assicurarsi un adeguato invecchiamento del vino è importante conservarlo in un luogo fresco e poco illuminato. Nonostante molti specialisti si trovino in disaccordo su…

Implementare il protocollo MQTT con Arduino UNO e l’ESP8266
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Implementare il protocollo MQTT con Arduino UNO e l’ESP8266

MQTT è un protocollo di comunicazione che nel corso degli anni si è dimostrato particolarmente adatto per interconnettere i dispositivi IoT. Il protocollo MQTT si…

Regolatori Buck DC-DC con Architettura Zero-Voltage Switching
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Regolatori Buck DC-DC con Architettura Zero-Voltage Switching

Benvenuti a un nuovo appuntamento con la Rubrica Firmware Reload di Elettronica Open Source. In questa Rubrica del blog troverete articoli tecnici della vecchia rivista…

Una radio centenaria con Arduino
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Una radio centenaria con Arduino

Una radio centenaria con Arduino: in questo articolo scopriremo assieme un progetto nostalgico che ricorda le prime radio del ventesimo secolo, realizzato con Arduino, legno…

XT2AW Burkina Faso. From DXNews.com
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XT2AW Burkina Faso. From DXNews.com

Harald, DF2WO will be active again as XT2AW from Burkina Faso, 3 – 20 December 2021., XT2AW Burkina Faso. From DXNews.com, ,

UA9BA CQ WW SSB 2021 SOAB QRP. A FIGHT WITH TEMPTATION. From DXNews.com
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UA9BA CQ WW SSB 2021 SOAB QRP. A FIGHT WITH TEMPTATION. From DXNews.com

It was early October of 2021 when I thoroughly considered my plans for the upcoming SSB contest., UA9BA CQ WW SSB 2021 SOAB QRP. A…