Note
The AT-897 is designed to work as an integrated component of the Yaesu FT-897 transceiver. It will tune dipoles, verticals, Yagis or virtually any coax-fed (unbalanced) antenna. It will match a very wide range of antennas and impedances. The tuner consumes very little power while tuning and zero power otherwise, which makes it ideal for battery-powered operations.
The AT-897plus made a couple of changes.
– First, power handling was raised to 125 watts.
– Secodn, memory was expanded to 2,000 frequency memories. The transmit frequency is actually read directly from the FT-897.
Features
– Automatically matches antennas from 6 – 800 ohms impedance, or a 10:1 SWR
– Very low current consumption: 300 mA during turning, less than one microamp in standby, or can be turned off completely.
– Uses latching relays, to retain tuned setting indefinitely even when power is completely removed.
– Powered by the FT-897 through the CAT cable (provided); no external power source required.
– CAT port access provided.
– Tunes in less than 8 seconds, usually around 4 seconds.
Specifications
– Continuous coverage 1.8 to 54 MHz
– Power rating HF: 0.1 to 100 Watts
– Antenna impedance: 6 to 800 Ohms (Approximately up to 10:1 SWR)
– 200 fast memories
– Tuning time: 1 to 8 seconds, 4 average
– Microprocessor controlled, switched L tuning network
– Latching Relays hold tuned setting indefinitely, even when power is removed
– Tunes nearly any coax fed or unbalanced input antenna. Use optional Balun for long wires or balanced input antennas
– Mounts directly on the side of the Yaesu FT-897, provides side feet attachment
– Dual function tune control button – Tune or Bypass
– Provides CAT port access
Power requirements: 10 to 15 volts DC @ 300 mA during tune
Operating voltage supplied via the FT-897 CAT/Linear Port
