Revolutionizing Emergency Communications The invention of Guglielmo Marconi’s wireless telegraph in the late 19th century ushered in a new era of communication. Before Marconi’s breakthrough, sending messages required physical wires or reliance on slower methods like semaphore, carrier pigeons, or written correspondence carried on horseback. Marconi’s invention fundamentally changing how…
This is a list of San Jose repeaters in the 2m and 70cm bands that are workable from most locations within the South Bay Area. If I have something wrong, please let me know. I don’t list DMR, Yaesu Fusion, or D-Star repeaters here. This is a simple, clean list…
Shopping for a new dual-band mobile ham radio can feel overwhelming, especially with so many options on the market. Whether you’re a seasoned operator or a newcomer to amateur radio, finding the right VHF/UHF dual-band transceiver is essential not only for reliable performance, but for your own personal satisfaction as…
International Telecommunications Union Region 2 (ITU Region 2) covers the Americas, including North America, South America, Central America, and the Caribbean, as well as some Pacific Ocean territories. Here’s a list of countries and territories included in Region 2: North America Canada, United States, Mexico Central America Belize, Costa Rica,…
Two Rules are Specific to Radio Communications In the early days of maritime wireless communication, years before the Titanic Disaster, CQD emerged as one of the first standardized distress signals. Introduced in 1904 by the Marconi International Marine Communication Company, CQD was widely used by ships equipped with Marconi wireless…
From AM to FM: The Evolution of CB Radio Widely used by a broad population in the 1970s, CB radio conjures images of truckers trading highway intel, a few dedicated hobbyists with base stations, and plenty of other pop culture references like Smokey and the Bandit, Convoy, and the aptly-titled…
Once confined to research labs, millimeter wave technology or “mmWave” as it’s commonly referred to, is now the backbone of groundbreaking advancements in 5G networking. As mobile carriers and other industries scramble to harness its potential, mmWave technology is not just shaping the future of communications, it’s paving the way…
mmWave technology is a cutting-edge innovation that plays a pivotal role in shaping the future of wireless communication. With its high bandwidth capabilities and groundbreaking applications, mmWave technology continues to amaze tech enthusiasts and industry professionals alike. Here are ten ways mmWave technology is already changing out lives. 1. 📶…
Primary Goal is to Improve Adoption of 4.9GHz Band FCC Policy Update: Link to original FCC document The FCC on Oct. 24, 2024 issued orders to implement a new management framework for the 4.9GHz spectrum band, aiming to enhance its utilization for public safety communications. This initiative seeks to address…
Potential Impact of Symbol Rate Limit Removal For decades sending “data” with a ham radio meant tapping out a message in Morse code. In recent years, however, modern data modes have become an exciting part of the radio operator’s toolkit. Data modes allow hams to send digital information over the…
