LDG Z-11 Pro II Automatic Antenna Tuner 1.8–54 MHz, 125W

The LDG Z-11 Pro II is a compact, lightweight automatic HF antenna tuner covering 1.8–54 MHz (including 6m). It handles 0.1–125W SSB/CW (100W on 6m), making it equally at home with QRP rigs and standard HF transceivers.

LDG's 3D memory system stores 2,000+ frequency settings and recalls them in under a second on return visits — so after the first tune, band changes are near-instant. With a standby current of just ~25µA, the Z-11 Pro II is built for battery-powered field work. An internal 8x AA battery holder means you can operate completely off-grid.

Supports coax-fed and wire antennas (up to 4,000 ohms with an optional 4:1 balun). Auto and semi-auto tuning modes give you full control when you need it.

Key Features

• Frequency range: 1.8–54 MHz (HF + 6m)
• Power: 0.1–125W SSB/CW, 100W on 6m
• Impedance matching: 6–1,000Ω (HF), 16–150Ω (6m), up to 4,000Ω with 4:1 balun
• 2,000+ memory locations with 3D intelligent recall
• Tuning time: 0.1–6 seconds full cycle
• Ultra-low standby current: ~25µA
• Internal 8x AA battery holder for off-grid use
• Auto and semi-auto tuning modes
• Supports coax-fed and wire antennas

Ideal For

• SOTA, POTA, and field day operations
• Mobile HF installations
• QRP and standard HF transceivers
• Multi-band base station setups
• Battery-powered portable operation