Screwdriver antennas for Mobile HF operation allows reliable long-distance communication from a moving vehicle using compact antennas. Therefore, a screwdriver antenna uses a motor-driven coil to adjust electrical length across…
The Perseus SDR Receiver is a direct sampling SDR that interests serious listeners and technical users. Therefore, it emphasizes performance, accuracy, and clean signal handling across VLF and HF bands.…
Eliminating common mode current, it rides on the outside of your coax shield. It turns your feed line into part of the antenna. Consequently, it brings RF into the shack,…
Calibrating an antenna rotor controller ensures accurate beam headings and repeatable antenna positioning. Additionally, proper calibration prevents mechanical strain and accidental over-rotation. Many operators depend on calibration to match displayed…
Quieting Power Line Noise can take a few months but the results are well worth the wait. Power line noise creates buzzing, crackling, or harsh signals that spread across multiple…
APCO Project 25, often called P25, is a set of digital radio standards developed for public safety and emergency services. Phase I and Phase II are two generations of this…
Proper coax routing matters because it protects overall signal quality while also preventing long-term damage to the feedline that can quietly degrade performance over time. Moreover, smart routing choices help…
Citizens Band radio lingo began with CB as a practical communication service designed for everyday people rather than trained radio professionals. In the mid-20th century, governments recognized the need for…
You can turn everyday metal structures into unconventional antennas and effective HF and VHF antennas. When you experiment with rain gutters, fences, and balconies, you repurpose existing conductors instead of…
You can work a lot of stations with Modest Antennas For DX if you focus on strategy instead of hardware envy. Although big towers and beams help, smart operating techniques…