AT-140 Antenna Tuner
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- Frequency Range: 1.6–30 MHz (with 7 m; 23.0 feet or longer antenna element)
- Weight (Approx.): 2.5 kg; 5.5 lb
- Power Supply Requirement: 13.6 V DC (supplied from the HF transceiver)
- Current Drain: Maximum 2 A
- Operating Temperature Range: –30°C to +60°C (–22°F to +140°F)
- Antenna Connector: SO-239 (50 Ω)
- Maximum Input Power: 150 W (PEP), 100 W (continuous)
- Automatic Tuning Time: Approximately 2 to 3 seconds (general condition); Maximum 15 seconds
Approximately 1 second (re-tuning for a memorized frequency) - Automatic Tuning Accuracy: SWR 2.0:1 (after tuning, except for multiples of 1⁄2 λ)
- Usable Pole Diameter: 32 to 60 mm; 1.3 to 2.4 inches
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