The Doctor discusses the wide variety of coaxial cable connectors, including some you may not recognize.

What sort of ground do you need -- RF or electrical safety? It makes a big difference, as the Doctor explains.

The Doctor separates myth from fact about this very popular antenna for the HF bands.

Different tools for different applications. The Doctor explains the differences.

Your antenna's polarization can make a big difference in how well you can hear, and be heard -- especially on VHF and up.

There are many types of cable for many applications. Which type do you need?

The Doctor answers questions from listeners!

Trees make handy supports for wire antennas, but getting an antenna into a tree -- and keeping it there -- can be a challenge.

The answer to the question is an emphatic "no," and the Doctor explains why.

A discussion of UTC as well as the importance of accurate time for a number of digital modes.