The internal automatic antenna tuner can be added to any Orion or Orion II that does not have the autotuner already installed as a user-installable kit. The kit includes a completed circuit board, all necessary cables, and illustrated instructions. The AT566K is a no soldering required installation.
Posted by Fred M Friedl on 22nd Jul 2014
The directions are very straight forward and include photos for each step. Only one solder and it is very accessible. Everything else is a plug-in. Installation would be easy even for the most novice in the hobby. The tuner works as it should with a simple press of the "tune" button. Within 2 to 3 seconds at most, you are ready to go!
Posted by Unknown on 3rd Mar 2014
This auto tuner definitely improves the versatility of the Orion II by allowing for safe operation and increased band coverage on antennas that are not optimized for the frequencies of interest. The electronic switching allows for fast and efficient tuning when reducing SWR. I feel reliability should be higher on this unit because their are less moving parts when compared to electro-mechanical designs. The instruction manual is well written, detailed, and easy to follow. Installation is fairly straight forward.
However, to avoid any issues or mistakes it should be done in a careful and methodical manner.
Posted by Michael Zeglen KL7ai on 30th Oct 2011
After using Icom, Yaesu, old Drake and then moving to Ten Tec Orion I must say that there is NO equal here. You can't go wrong with the Orion 1 and if you can grab and Orion II do so as you will not be sorry. Great SSB audio and simply the best CW rigs out there.