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ATU-450 Internal Automatic Antenna Tuner
The Yaesu ATU-450 Automatic Antenna Tuner is designed to be installed inside the Yaesu FT-450 Transceiver.
The ATU-450 Responds to control commands from the FT-450 Transceiver, providing microprocessor-based impedance matching on the 160 through 6 metre Amateur Bands.

The impedance matching range is from 16.5Ω to 150Ω (up to 3:1 SWR).

Note: the ATU-450 should NOT be expected to match "long wire" type antennas unless you have takes specific design steps to ensure that the impedance presented to the FC-30 is within the required (16.5Ω to 150Ω) specifications.
Specifications ATU-450
Frequency Range 1.8 to 30MHz, 50 to 54MHz
Input Impedance 50Ω
Maximum Input Power 100W
Matched SWR 1.5:1 or less
Tune-up Power 4W to 60W
Tune-up Time 5 seconds or less
Impedance Matching Range 1.8 to 30MHz, 50 to 54MHz
Impedance Matching Memories 100 Channels
Input Voltage Requirements 13.8VDC ±15% (supplied via the Transceiver Control Cable)
Operating Temperature Range -10ºC to +50ºC
Case Size (W x H x D, mm) 80 x 38 x 155, without the projections
Weight (Approx, g) 500
  • ATU-450 Auto Tuner
  • Mounting screws
  • Installation Manual
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