LDG AT-1000ProII Automatic Antenna Tuner 1kW, 1.8-54MHz, 4000 Memories, Dual Antenna

LDG AT-1000ProII Automatic Antenna Tuner

The LDG AT-1000ProII is a high-power automatic antenna tuner covering 1.8–54MHz continuously, rated at 1kW SSB on HF. With a two-position antenna switch and 2,000 memories per antenna (4,000 total), it delivers near-instant memory recall whenever you transmit on or near a previously used frequency — just key and it tunes. A large bargraph wattmeter with dual scale ranges (100W and 1kW) plus SWR meter makes monitoring straightforward, and transceiver TUNE button integration is supported on many popular radios.

Key Features

• 1kW SSB HF power rating — suitable for high-power station use
• Covers 1.8–54MHz (160m–6m) continuously
• 4,000 memories (2,000 per antenna) for near-instant band changing
• Two antenna output connectors with independent memory banks
• Dual-scale bargraph wattmeter: 100W and 1kW ranges, plus SWR
• Transceiver TUNE button integration with many popular radios
• Relay protection software prevents tuning when RF power is high
• Tunes 6–1000Ω loads (16–150Ω on 6m) — Yagis, dipoles, inverted-Vs, slopers, coax-fed antennas
• Longwires or ladder-line fed antennas require an external balun (not included)
• Optional M-600 4.5" analog LED-backlit meter available separately
• Includes 6ft (1.8m) DC power cable (5.5×2.5mm)

Technical Specifications

• Frequency Range: 1.8–54MHz
• Power Rating: 1000W SSB / 750W CW / 500W digital (HF) | 250W all modes (6m)
• Tuning Power: 5–125W
• Load Range: 6–1000Ω (16–150Ω on 6m)
• Memories: 4,000 (2,000 per antenna output)
• Antenna Outputs: 2
• Tuning Time: Usually under 10 seconds
• Enclosure Size (W × D × H): 254 × 279 × 76mm