In this episode I let you hear the operation of my Kenwood TS940S automatic tuning unit. It had been a while since I’d last transmitted and I was a bit nervous that it might not even work – apparently it still does.

Link to my original show that had a comment from Michael

hpr2668 :: Explaining the controls on my Amateur HF Radio Part 3

http://hackerpublicradio.org/eps.php?id=2668

Link to article about the Kenwood TS940-S

https://www.universal-radio.com/catalog/hamhf/ts940s.html

Information on the Automatic Tuning Unit located internally within the Kenwood TS940S apparently its an optional Unit with Part number AT-940

https://www.universal-radio.com/catalog/hamhf/at940.html

if you really want to dive into more detail about Tuning units feel free to follow this link in wikipedia.

https://en.wikipedia.org/wiki/Antenna_tuner

Dipole information from wikipedia

https://en.wikipedia.org/wiki/Dipole_antenna

40M band allocation information from Wikipedia

https://en.wikipedia.org/wiki/40-meter_band

Noise Blanker information from wikipedia

https://en.wikipedia.org/wiki/Noise_blanker