This manual introduces the Kenwood AT-200 antenna tuner, an accessory designed for use with Kenwood TS‑520, TS‑820 and similar transceivers. It describes the unit’s components—including the antenna coupler, through‑line wattmeter, SWR meter, and four‑output antenna switch—and outlines the frequency coverage from 1.8 MHz to 30 MHz.
The guide walks the user through preparing the unit, connecting antennas or a dummy load, operating the various switches (POWER‑SWR, FWD‑REF, CAL, ANT, BAND, R TUNE, X TUNE), and performing adjustments to achieve low SWR. It also includes a schematic diagram, rear‑panel connector details, and maintenance tips.
| Input impedance | 50 Ω |
|---|---|
| Antenna impedance | 50 Ω |
| Maximum power | 200 W |
| Insertion loss | < 0.5 dB |
| Dimensions (W × H × D) | 166 mm × 153 mm × 190 mm |
| Net weight | 2.8 kg (6.2 lb) |
Set the CAL switch to the CAL position and adjust the CAL control until the meter pointer swings to the CAL position.