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ATU-450 is designed to be installed in the FT-450 HF Transceiver. The ATU-450 Automatic Antenna Tuner responds to control commands from the FT-450 Transceiver, providing microprocessor-based impedance matching on the 160 through 6 meter amateur bands. The impedance matching range is from 16.5 ohms to 150 ohms (up to 3:1 SWR). Accordingly, the ATU-450 should not be expected to match "long wire" type antennas unless you have taken specific design steps to ensure that the impedance presented to the FT-450 is within this specification. Please refer to the FT-450 Operation manual for operating instructions. Supplied Items: Screws (M3x5NI) (4 pcs) Installation Manual (1 pc) Specifications: Frequency Range: 1.8 ~ 30 MHz, 50 ~ 54 MHz Input Impedance: 50 Ohm Maximum Input Power: 100 Watts Matched SWR: 1.5:1 or less Tune-up Power: 4 W ~ 6 W Tune-up Time: 5 seconds or less Impedance Matching Range: 1.8 ~ 30 MHz, 50 ~ 54 MHz Impedance Matching Memories: 100 Channels Input Voltage Requirement: DC 13.8 V ±15% (supplied from FT-450) Operating Temperature Range: 14 °F ~ 122 °F (-10 °C ~ +50 °C) Case Size (W x H x D): 3.1" x 1.5" x 6.1" (80 x 38 x 155 mm) (without the projection) Weight (Approx.): 1.1 lb (500 g)
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