ARRL tested some popular commercial antenna tuners and reported the results in QST as follows. They covered 160-10 and various loads. All were quite lossy on the low bands with low Z loads. February, 2003 Product Reviews High Power Antenna Tuners: • AMERITRON ATR-30 • MFJ-986 • PALSTAR AT1500CV • TEN-TEC 238A • VECTRONICS HFT-1500 -- Dan Hearn N5AR