# EchoLink: A Technical Overview and User Guide

## Introduction

EchoLink is a Voice over Internet Protocol (VoIP) application designed for licensed amateur radio operators, enabling them to communicate via the internet. By bridging radio communication with internet technology, EchoLink allows users to connect with

## DIY Dipole Antenna

Building your own dipole antenna can be an enjoyable and rewarding project, whether you are an amateur radio operator or just someone interested in exploring the world of radio communications. This guide will walk you through the basics of dipole antennas, the materials you need, and step-by-step instructions to build your own.

### What is a Dipole Antenna?

A dipole antenna is one of the simplest and most effective types of antennas. It consists of two equal-length conductive elements (usually made of wire) that are oriented in opposite directions. The basic dipole antenna

### Dipole Antenna Measurement Calculator

**LINK**: https://hamlike.com/app/dipole-calculator/ -------

# **Ham Radio Filters: Essential Tools for Clear Communication**

Amateur radio, or ham radio, has long been a vital communication tool for hobbyists, emergency responders, and enthusiasts alike. A key component of any ham radio setup is the use of filters. These devices play a critical role in ensuring that your signals are as clear and interference-free as possible, while also minimizing unwanted noise and harmonics. Whether you're talking to fellow operators across town or communicating globally, using the right filters can make a world of difference in the quality of

# The Different Types of Coaxial Cables Used for Ham Radio

Coaxial cable is a fundamental component in ham radio setups, acting as the bridge between your radio transceiver and antennas. Whether you're building a simple station for local communications or setting up a complex, multi-band system, choosing the right type of coaxial cable is crucial. The performance of your radio system,

My first attempt at decoding SSTV during the ARISS 2024 ISS event.

**Date**: October 13th, 2024
**Time**: 1635 PST (2235 UTC)
**Location**: DM12
**Radio**: Yaesu FT-991A
**Antenna**: omnidireccional, 30ft in the air

### Video of image getting decoded:

▶Open post to watch video

### Imagine

Arrow Antenna Tripod and Cellphone Mount
https://www.printables.com/model/69675-arrow-antenna-tripod-and-cellphone-mount

[upl-image-preview

# Ham Radio SSB on the 2 Meter Band

Single Sideband (SSB) operation on the 2-meter band represents an exciting aspect of amateur radio that allows operators to make long-distance communications with relatively low power. While the 2-meter band is primarily known for FM communication, SSB offers unique advantages that appeal to many amateur radio enthusiasts.

## Understanding SSB

Single Sideband is a refined form of amplitude modulation (AM) that uses bandwidth more efficiently. In SSB, only one sideband (either the upper or lower) of the carrier wave is transmitted, eliminating the need for the

# The Standard ITU Phonetic Alphabet

The International Telecommunication Union (ITU) phonetic alphabet, also known as the NATO phonetic alphabet, plays a crucial role in ham radio operations. For amateur radio operators, effective communication is essential, and the phonetic alphabet helps ensure clarity, especially when dealing with noisy conditions or language barriers.

## Understanding the ITU Phonetic Alphabet

The ITU phonetic alphabet assigns specific code words to each letter of the English alphabet, making it easier to spell out words and avoid misunderstandings. Here’s a quick

# Ham Radio vs. GMRS: A Comparative Guide

As two popular forms of two-way communication, ham radio (amateur radio) and GMRS (General Mobile Radio Service) serve distinct purposes and audiences. Understanding the differences between these two technologies can help users choose the best option for their communication needs.

##

# Exploring Different Types of 3D Printers

3D printing has revolutionized manufacturing, prototyping, and creative expression. With various technologies available, each type of 3D printer has its unique advantages and applications. Here’s a look at the most common types of 3D printers and their functionalities.

## 1. Fused Deposition Modeling

Lilygo T-Deck TD1 Case by Alley Cat
https://www.printables.com/model/741124-lilygo-t-deck-td1-case-by-alley-cat/files

[upl-image-preview

K1PDX Yagi Antenna Kit
https://www.printables.com/model/622362-k1pdx-yagi-antenna-kit

Amateur Radio RF Adapter Storage
https://www.printables.com/model/446734-amateur-radio-rf-adapter-storage

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DJI Mini 2 RAK Wizblock Meshtastic mount
https://www.printables.com/model/835945-dji-mini-2-rak-wizblock-meshtastic-mount

[upl-image-preview

Lilygo T-Deck Meshtastic Slim Case
https://www.printables.com/model/873518-lilygo-t-deck-meshtastic-slim-case

[upl-image-preview

RAK4631 Meshtastic Outdoor Node
https://www.thingiverse.com/thing:6602076

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Heltec case for Meshtastic

https://www.printables.com/model/616628-heltec-wireless-tracker-case-for-meshtastic

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## How to Find the International Space Station (ISS) on Ham Radio

The International Space Station (ISS) orbits Earth at an average altitude of about 400 kilometers (250 miles), and it's equipped with amateur radio equipment that allows ham

[www.tasma.org](https://www.tasma.org)
Frequency Coordination & Spectrum Management for Southern California

attached is the SoCal Band Plan (TASMA)

source: