This week, we’re looking at a few practical builds and modifications that might spark some winter workbench activity. There’s a detailed guide for a multi-band portable vertical, the PAC-12 Antenna, which uses easily replaceable loading coils—something that comes up often when you’re trying to cover a lot of ground with minimal gear. For those running an Elecraft KX2, a modification for adding audio I/Q output is presented, useful for external SDR software or a spectrum scope, which can really enhance signal analysis in the field or at the home station. We also have a look at a 40-meter reversible Moxon design, a practical approach to directional antennas without needing a rotator, and a simple 80-meter CW transmitter build for those who enjoy getting on the air with minimal parts. Finally, there’s a discussion on optimizing keyboard setups for CW contesting, a small detail that can make a big difference in a pileup.
The PAC-12 Antenna is a multi-band portable vertical antenna designed by KA5DVS. This resource provides a detailed construction guide, highlighting its use of replaceable loading coils and common components for easy assembly.
This resource details the development of the HS4HF 4 Band HF Radio Transceiver, an HF SDR unit with a 5.0-inch TFT display. It also mentions the author's work on the Radio HSDRA, an All Band SDR HF Radio Transceiver featuring DSP Digital Modulation and 100W final power.
This article describes how to build the 'Easy Ten,' a simple 80-meter CW transmitter. It focuses on operating in the 3.5 and 7 MHz ranges using a random wire antenna, making it suitable for beginners or those seeking a minimalist setup.
This guide explains how to add an audio I/Q output to an Elecraft KX2 transceiver. It provides circuit design details and component lists, enabling users to connect their KX2 to a spectrum scope or external SDR software for enhanced signal analysis.
VE3VN's blog post discusses the design and performance of a 40-meter reversible Moxon antenna. The antenna offers directional coverage that can be reversed, making it a practical solution for operators needing flexible directivity without a rotator.
This resource offers advice on optimizing keyboard setups for CW contesting. It covers the importance of macros, keyboard combinations, and specific mechanical keyboards to improve efficiency during competitive operating sessions.
