ARRL The Doctor is In

1. The Best of the Doctor Is In: Coping with the Solar Minimum

   Originally distributed in September 2016

2. The Best of the Doctor Is In: Are Linear Amplifiers Really Worthwhile?

   The episode was originally distributed in June 2016.

3. The Best of The Doctor is In: Does CW Get Through When Nothing Else Can?

   Originally distributed in April 2016

4. Holiday Mailbag

   The Doctor answers a number of interesting questions from listeners.

5. VHF/UHF Propagation

   Repeaters aren't the only ways to span long distances in the world above 50 MHz.

6. Big Wire Antennas

   Rhombics, Lazy Hs, Curtains, oh my! The Doctor talks BIG wire antennas for the HF bands.

7. Antenna Switches

   There is more to an antenna switch than meets the eye. The Doctor explains.

8. Beverage Antennas

   The Doctor discusses a legendary receiving antenna -- not adult drinks!

9. Antenna EnTRAPment!

   Awful puns notwithstanding, antenna traps are clever devices, but not many amateurs understand how they work. The Doctor explains . . .

10. Keeping Water Out of Coaxial Cables

    Water is one of the great enemies of coaxial cable, causing severe loss and other issues. The Doctor explains how to keep H2O at bay.

11. Coaxial Cable Connectors

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

12. Different Types of Grounds

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

13. The Legendary G5RV Antenna

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

14. Noise Blankers and Noise Reduction

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

15. Antenna Polarization

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

16. Selecting Coaxial Cable

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

17. ARRL's The Doctor is In - Listener Mailbag

    The Doctor answers questions from listeners!

18. ARRL's The Doctor Is In - Stringing Up Antennas

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

19. Do Dipoles Have to be Straight?

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

20. It's About Time!

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