Hi, Folks! I've read some discussions on antenna tuners for a few days. I want to get back into HF bands; have a Tentec 525 Argosy, and will be getting a 20-meter vertical. Question is how accessible are antenna tuners, are they automatic, and how do they work? also, I have a Tech. license with CW. Any help would be greatly appreciated. Thanks.--Matthew Chao, N1IBB.