Note
The ATR-30 is a high power antenna tuner. The ATR-30’s roller inductor "T" matching network continuously tunes all frequencies from 1.8–30 MHz.
It features a built-in 3 kilowatt peak or average detecting directional power meter. The ATR-30 has rear panel connectors for coaxial and wire feedlines. A heavy duty, high voltage insulated, current-type balun allows use with balanced feedlines.
Properly tuned, the ATR-30 safely operates on all bands with RF power levels (CW or SSB) of 3 kilowatts with load impedances from 35–500 ohms. Matching range also extends from one ohm to 2500 ohms (5 ohms to 500 ohms on 160 meters) at slightly reduced power ratings.
Peak and average forward power, reflected power, and SWR are displayed on an illuminated cross-needle meter.
An internal six position antenna-selector switch selects three coaxial line outputs, or a single wire linebalanced line output. Two coaxial line outputs, ANTENNA 1 and 2, are available in either “tuned” (with tuner's matching network in line) or “direct” (no matching circuit) configurations.
Coaxial output port ANTENNA 3 is available only as a direct (no matching system) configuration. WIRE / BALANCED LINE positions are available only as “tuned” configurations.
