DIY project: 2 Element 2m / 3 Element 70cm Yagi
https://www.thingiverse.com/thing:2255079

A compilation of radio & related material I think is useful as a HAM radio operator.
Compiled this information as a PDF file on April 22nd, 2024

Download PDF file:

Suggestion welcomed

**Source: https://www.ariss.org/**

**October 8, 2024** — Amateur Radio on the International Space Station (ARISS) announces an SSTV event to be held this week. The event is scheduled to begin from 1415 UTC to 1600 UTC UTC on Tuesday, October 8. SSTV transmissions will be paused from 0725 UTC to 1450 UTC on Friday the 11th because of the multiple school contacts scheduled for that day. The event shutdown runs from 1410 UTC to 1420 UTC on Monday, October 14. Downlink transmissions will be at 145.800 MHz and the mode is expected

_ Source: https://kv4p.com _

### What is it?

kv4p HT is a homebrew VHF radio that makes your phone capable of voice and text communication completely off-grid with at least a Technician class amateur radio license.

The radio simply plugs into the USB C port on your Android smartphone and transforms it into a fully-fledged handheld radio transceiver. It's completely open source (GPL3): the Android app, ESP32 firmware, PCB designs, and 3D printer files.

It's small enough to fit in your pocket and take anywhere, and since it has

# Choosing the Right Battery for Your Ham Radio

When setting up a ham radio station, selecting the right battery is as crucial as choosing your transceiver and antenna. A good battery ensures that you have reliable power for your operations, whether at home or in the field. With various types of batteries available, it’s essential to understand your options and select one that meets your needs. Here’s a guide to help you choose the right battery for your ham radio.

## 1. **Understand Your Power Needs**

### Determine Your Equipment’s Power

# Transform Your Old Cell Phone into a Ham Radio Tool: A DIY Project

Do you have an old cell phone gathering dust? Instead of letting it sit idle, why not repurpose it into a handy tool for your ham radio activities? In this blog post, I’ll guide you through a fun DIY project that transforms your old smartphone into a dedicated logging device and Morse code practice tool. Let’s get started!

## Why Repurpose Your Old Cell Phone?

As ham radio operators, we’re always looking for ways to improve our skills and streamline our operations. An old cell phone can serve as a versatile assistant, allowing

# Fun Projects for Ham Radio Operators to Try at Home

Ham radio is not just about communication; it’s also a platform for creativity, experimentation, and learning. Whether you're a novice or a seasoned operator, engaging in DIY projects can enhance your skills and deepen your understanding of radio technology. Here are some fun and rewarding projects that ham radio operators can try at home.

## 1. **Build Your Own Antenna**

### **Simple Dipole Antenna**

One of the most accessible projects is to

# The Best Ham Radio Gear for Beginners in 2025

Ham radio, or amateur radio, is an exciting hobby that allows enthusiasts to communicate over various frequencies using radio equipment. For beginners diving into this world in 2024, selecting the right gear is crucial for a smooth start. Here’s a guide to the best ham radio gear that balances performance, ease of use, and affordability.

##

# Easy Tips for Improving Your Ham Radio Signal

## 1. Optimize Your Antenna Setup

Your antenna plays a key role in the quality of your ham radio signal. Here are some essential tips for optimizing your antenna setup:

# The History of HAM Radio

## Introduction

HAM radio, or amateur radio, is more than just a hobby; it is a unique communication medium that has enabled people to connect across distances and has played crucial roles in emergency communication, education, and community building. This article delves into the rich history of HAM radio, exploring its evolution from experimental beginnings to its current status as a vital communication tool worldwide.

## Early Beginnings

### The Birth of Wireless Communication

The origins of HAM radio can be traced to the late 19th

# Is Ham Radio Dead? Debunking the Myths

In an era dominated by smartphones, instant messaging, and digital communication platforms, it’s easy to wonder: is ham radio still relevant? Some might argue that it has become obsolete, overshadowed by modern technology. However, a closer look reveals a different story. Ham radio is very much alive and continues to thrive in various ways. Let’s explore the reasons why ham radio is not only surviving but flourishing.

## A Passionate Community

One of the most significant indicators of ham radio's vitality is its dedicated community of

# Understanding Yaesu FUSION C4FM Wires-X

In the ever-evolving world of amateur radio, digital communication technologies have become increasingly important. One of the standout developments in this space is Yaesu's FUSION, a system that integrates analog and digital communication in a user-friendly package. This article will explore what FUSION is, its key features, and how it enhances

# Exploring SDR in Ham Radio

Software Defined Radio (SDR) has revolutionized the way amateur radio operators engage with the hobby. By leveraging software for signal processing and control, SDR offers a level of flexibility and functionality that traditional radios cannot match. In this article, we’ll delve into what SDR is, its advantages, and how you can get started in the world of SDR ham radio.

## What is SDR?

SDR is a radio communication system that uses software to perform functions traditionally handled by hardware. In an SDR setup, much of the signal processing—such as modulation,

# Discovering DMR

Digital Mobile Radio (DMR) has taken the ham radio world by storm, offering operators a modern, efficient way to communicate. With its digital clarity and advanced features, DMR has become increasingly popular among amateur radio enthusiasts. In this article, we’ll explore what DMR is, its advantages, and how you can get started in this exciting facet of ham radio.

##

The RF Line-of-Sight tool allows users to easily drag-and-drop locations and obtain point-to-point line-of-sight information anywhere using Google Maps.
This free online tool takes antenna height and the topographical formations of the earth to calculate the line-of-sight of a radio path. Note that buildings and other obstructions is not taken into consideration when calculating line-of-sight using this tool.

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# Exploring WSPR: The Future of Weak Signal Communication

**Introduction to WSPR**

Weak Signal Propagation Reporter (WSPR) is an innovative digital communication mode designed to facilitate the study of radio wave propagation. Developed by Joe Taylor, K1JT, WSPR allows amateur radio operators to send and receive low-power signals, making it a powerful tool for both

# Understanding Winlink

In an era where digital communication dominates, Winlink stands out as a unique platform, bridging the gap between amateur radio enthusiasts and the need for reliable, long-distance communication. Whether for emergency response, maritime communication, or remote area connectivity, Winlink has emerged as a vital tool. This article explores the functionality, applications, and benefits of Winlink, highlighting its significance in today's world.
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### The Ham Radio Frequency Spectrum

The ham radio frequency spectrum, allocated by the International Telecommunication Union (ITU), offers amateur radio operators a wide range of frequencies to explore and communicate with others locally and globally. In this article, we'll delve into the details of the frequency spectrum, exploring the various bands, their characteristics, and uses.

### Frequency Spectrum Overview

The ham radio frequency spectrum spans from 1.8 MHz to 275 GHz, divided into several bands, each with unique properties and applications.

### HF