KF6BPV - AT-500 on eHam.net Feb 2014

“Great for use with ALS-600": For a year or more I have been using an auto tuner with my Ameritron ALS-600 solid state amplifier and had problem with the amplifier tripping into load default. The auto tuner was returning even after I had tuned up. I replaced the auto tuner with the Palstar AT-500 and have not had any problem with the amplifier tripping into load default. If you are looking for a manual antenna tuner consider the Palstar tuners they are a great product.”

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