What is an antenna balun, why and when do you need it, type of transformers, impact on SWR and feed line efficiency.
A homemade tunable bandpass filter for all HF bands from 160m to 10m
A dipole antenna for 7 MHz support for this antenna is fiberglass military mast
An interesting article based on experience on homebrew end-fed antennas, relevance of antenna counterpoises, and usage of indoor end-fed antennas
Article describing various type of portable antennas, from verticals, to dipoles, vertical dipoles, random wire with tuners, and end-fed antennas
Gridmaker takes your ADIF-file and searches for all the grids on the specified band. It then makes files for use in DXAtlas
Building the W3NQN bandpass filters
5 Element Yagi with Conventional Driver, this little Yagi has a high F/B, which makes it quite useful as a contest stack.
An easy and cheap homemade moxon antenna for ham radio 70cm band
A review of the HF ham radio bands, considere by far the most popular bands in the amateur service. HF bands offer local QSOs and world-wide propagation are all possible at almost anytime with careful selection of the right frequency for the time of day, time of year, and current state of the sunspot cycle.
The post Top Amateur Radio links of the week Issue 173 appeared first on The DXZone.