The WPX Contest is based on an award offered by CQ Magazine for working all prefixes. Held on the last weekend of March (SSB), the contest draws thousands of entries from around the world.

Operating Modes/Digital Modes
In the field of RTTY transmissions with audio boards, you can transmit either in FSK or AFSK mode. Which is better: FSK or AFSK? Advantages and Disadvantages of both methods

Antennas/Baluns
Our ideas about HF baluns have changed dramatically in recent years. The focus today is very much on suppressing unwanted common-mode RF currents, to reduce both the received noise levels and the risks of causing interference on transmit.

Antennas/Quadrifilar Helix
How to build a QFH (Quadrifilar Helix Antenna) to download images from weather satellites. A complete tutorial on assembling QFH antenna at home with simple and common tools

Antennas/Quadrifilar Helix
This version of the 137MHz quadrifilar antenna for APT reception is an adaptation from Bill Sykes and Bob Cobey Taming the QFH which appeared in the March 1997 RIG magazine. This article contains detailed 3D pictures and models and detailed pictures.

IC-R20 by Icom. Wideband Receiver Professional radioreceiver, allow double receiver, from HF to Microwave, digital recorde, DTCS, Memories and 11 hours countinuous reception.

Radio Equipment/VHF-UHF Handhelds/TYT MD-380
DMR Handheld TDMA Tier I and Tier II VHF or UHF product review with information on accessories

Antennas/Quadrifilar Helix
How to receive NOAA weather satellite with a home made QFH Antenna. This project includes some easy and efficient notch filters to suppress noise from FM frequencies

New bugfix release version for Fldigi. The developer's team of the popular multiplatform multimode amateur radio software has recently announced version 4.1.11 of their open source program.

Operating Modes/DMR
Learn how to register for a DMR ID on DMR-MARC and Brandmeister

Antennas/Helical
Helical antenna or helix antenna is the antenna in which the conducting wire is wound in helical shape and connected to the ground plate with a feeder line. It is the simplest antenna, which provides circularly polarized waves.

Antennas/Quadrifilar Helix
The Quadrifilar Helical antenna provides circular polarization and complete hemispherical reception, which is precisely what is needed to receive the polar orbiting weather satellites, and as a 2 meter antenna it will receive horizontal, vertical and clockwise circular polarization.

Radio Equipment/VHF-UHF Handhelds/TYT MD-380
How to use the hacked firmware on the MD-380. Tools for working with codeplugs and firmware of the Tytera MD380,

Ham Radio/Personal Pages/Europe
2E0RDj Amateur Radio Station in Beachley, Nr Chepstow. IO81QP. Projects, Radio & Weather.

Software/Morse Code Training
Learn Morse Online in 40 lessons with this web based morse code learning program, based on the Koch method. Choose the lesson, adjust the wanted parameters, and start the transmission of a set of random characters based on chosen lesson. Recognize the code and verify it at the end of the lesson.

Radio Equipment/HF Transceivers/Yaesu FT-857
A youtube video instructions on how to replace, the Select knob. Very often this know wobbles after some years of usage and in this video is well documented all passages needed to replace the knob.

SP International DX Contest, April 4, 2020 15:00 UTC to April 5, 2020 14:59 UTC

The G5RV Antenna and two other improved alternatives to this basic design, the well known ZS6BKW antenna and the W0BTU variant

Yaesu FTM-300D new 144/430 MHz Dual Band C4FM Digital/Analog FM Mobile Transceiver GPS C4FM Dual RX WIRESX Node

The Grid Square Locator, also known as the Maidenhead Locator System, is a geographical co-ordinate method based on a 6-digit code, widely used by amateur radio operators to determine a rough position on the Earth.