This article describes a fun winter project:building an air cannon antenna launcher for ham radio use. The author and friends previously used a slingshot, but wanted a more exciting alternative. Inspired by their local club’s launcher, they built their own versions with readily available PVC pipes and parts from a local hardware store. The total cost was around $40 per launcher. The article details materials, construction steps, and safety precautions.
A UHF Frequency Counter up to 1 GHz, includes the Block Diagram , test sketch for Arduino/Genuino Nano
Manually programming a Yaesu FTM-100 with hundreds of channels can be very fustrating. In this article the author highlights the difficulty of entering data with small buttons and the need to look up information for each channel. To avoid this tedious process author used RT Systems software as a solution. This program simplifies programming by allowing selection based on the radio model, download of frequencies from resources like RFinder, and quick loading onto the radio. While paid unlike the free CHIRP software used previously, the author emphasizes the time saved compared to manual entry, making the cost worthwhile.
Spectrum Communications specializes in a range of communication products, including antennas and cables for HF, VHF, and UHF (RX & TX), CB radio boards, electronic components, RX & TX boxed products, PCB products, and general accessories for testing and alignment.
Online antenna calculator for J-Pole models.
ESA1 features a state-of-the-art workshop capable of performing repairs, calibrations, and restorations on antique radios, jukeboxes, and gramophones. We return your vintage equipment to you in the best and most original condition possible. ESA1 is based in Italy.
A KiwiWebSDR from Dimapur Nagaland India running a loop antenna for HF bands