Extended Lazy-H Antenna: A Classic Multiband Wire Design from QST

Extended Lazy-H Antenna: A Classic Multiband Wire Design from QST: The Extended Lazy-H antenna, introduced in QST in 1955, is a balanced, open-wire-fed HF antenna offering efficient multiband operation.

Microphone Pre-Compressor Circuit for SSB Transceivers

Microphone Pre-Compressor Circuit for SSB Transceivers: A practical microphone pre-compressor circuit for SSB transceivers using JFET and transistor stages. Improve transmit audio clarity and power in amateur radio

DIY 145 MHz Twin Delta Loop Antenna for Ham Radio Operators

DIY 145 MHz Twin Delta Loop Antenna for Ham Radio Operators: A complete guide to building 145 MHz Twin Delta Loop antenna with dimensions, construction tips, feeding method, and performance advantages for VHF ham radio.

UR0GT Broadband Avia Antenna (RW4HVN Mod): The Ultimate Wideband VHF Antenna Guide

UR0GT Broadband Avia Antenna (RW4HVN Mod): The Ultimate Wideband VHF Antenna Guide: Detailed guide to building UR0GT Broadband Avia Antenna modified by RW4HVN. Covers dimensions, design principles, SWR performance, construction details

Compact 40M HF Antennas: Short Dipoles & Short Verticals

Compact 40M HF Antennas: Short Dipoles & Short Verticals: Explore short dipole and vertical antennas for 40 m HF operation—ideal for limited spaces, field setups, and portable ham radio stations. 40M HF Antennas

40m Vertical Antenna: Compact Base-Loaded Design for Powerful HF Operation

40m Vertical Antenna: Compact Base-Loaded Design for Powerful HF Operation: Build an efficient 40m vertical antenna with a 15µH base loading coil and short radiator. Ideal for compact HF setups and portable amateur stations