What is NVIS?
NVIS stands for Near-Vertical Incidence Skywave. It is used for local-to-medium distances on HF. This is the opposite of DX, which is meant for long distances. The radio waves from […]
An Amateur Radio Blog by DX Engineering Technical Articles
Technical Articles
EMCOMM / Technical Articles
EMCOMM: Emergency Disaster Kits for Home and Car
Are you prepared for an emergency? During and after an emergency, you (and possibly your family) may need to survive on your own for an undetermined amount of time. Being […]
Antenna Tech / Technical Articles
Improving Your Low-Band Vertical
Here we are, just past the solar minimum with Cycle 25 just getting started. Fall is a great time for HF propagation as we’ve discussed earlier. Should you focus on […]
Antenna Tech / Technical Articles
Tech Tips for Assembling/Installing a New Beam or Vertical Antenna
Here are just a few tips on what to do when assembling a new antenna. The suggestions hold true for both vertical and horizontal antennas. This is a basic information […]
Technical Articles / Weatherproofing and Grounding
DX Engineering Winter Purchasing Guide (Part 1): Put Station Weatherproofing Tops on Your To-Do List
As the weather turns colder and Contest Season fades into the past for another year, it’s a good time to think about shack upgrades and smart maintenance practices to keep […]
EMCOMM / Technical Articles
EMCOMM: How to Stay Relevant with Increasing Communications Stability
Is emergency communications dying? With fewer young people joining the ranks, amateur radio is getting older. In addition, amateur radio continuously fights for its allocated spectrum. But what about emergencies? […]
EMCOMM / Technical Articles
EMCOMM: The Importance of Exercises
Many organizations and groups decline in membership and participation, particularly in EMCOMM. Sometimes they may not offer the challenge and stimulation that people need to stay involved and active. BService […]
EMCOMM / Technical Articles
EMCOMM: Emergency Power Options
The portable rigs are ready to go. The antennas are chosen and packed. But there are plenty of other needs to think about before you head off for a remote […]
Technical Articles
Superheterodyne, SDR, Hybrid SDR: Which is Best?
Software Defined Radios (SDR) have become popular with hams over the last few years. Many own one, and those who don’t have certainly heard of them. What is an SDR […]
Antenna Tech / Technical Articles
Extending the Life of Your Antenna System
Wouldn’t it be great if your antenna system would work forever without any maintenance? Put it up once and enjoy it indefinitely–no tower climbing, cleaning connections, or replacing corroded parts. […]
