Yaesu FTDX10 vs. ICOM IC-7300 Comparison Chart and review of reception performances
Electronic Kits manufacturer, produce the Penntek TR-45L QRP Transceiver and the TR-25 CW Transceiver Kit
How to interface the Icom IC-7300 to RF Power amplifiers. Menu settings, cable connections and recommendations on how to avodi common errors that could even damage either the amplifier or the IC-7300
Contesting with stealth antenna limitations, defining your own rules for winning
Quads beams consist of 2 1 wavelength (approximately) loops, ordinarily arranged so that one is the driven element and the other is the reflector. In this project author explains how to build a two element Quad Antenna for the 28 MHz.
Pictures of a magnetic loop antenna for hf bands that works from 10 MHz to 24 MHz
A light and sturdy Quad for 10 and 15 meters. Basic Quad antenna design considerations. Building and assembling a dual band HF QUAD antenna, designing and joining cross-arms and boom, assembling spreader and element wire installation notes. QST article.
Targeted Attenuation for Adjacent Bands. Filtering is needed between the two rigs to prevent physical damage to the RX front end and to prevent the kinds of high-signal overload conditions like desense and IMD – as well as containing harmonic energy.
A PDF Presetation from the W0DXCC Forum on how to improve the performances of the popular Yaesu FT-2000 transceiver