A simple portable dipole antenna for the 40 meter band using a total lenght of 18 meter. It can be used for 80 to 10 meters coverage using a antenna tuner.
Free to download PDF book about operating The VHF/UHF bands written in the early to mid-1990s by a team of experienced VHF/UHF DXers and equipment developers, in an effort to pass on their knowledge and stimulate further developments.
Amateur radio loop antenna project using a Comet CVBA-500BC vacuum variable capacitor.
With this tool it is possible to create QSO maps overlay on Google maps there each QSO get a line from the home location to each DX location. An EDI logbook file is used as input. The creation will only use complete locator in the 6 characters format.
P5/4L4FN ED operations from North Korea from Pyongyang, DPRK 2001-2002, includes statistics and online log
Alpha 87A Amplifier Fault 1 and the downlevel amplifier
How to protect your receiver when operating in SO2R and using beverage antennas. A custom protection box made with two resistors and 2 stack of diodes.
16th HST World Championship Organized by Bulgarian Federation of Radio Amateurs September 2019