LDG PRO II Auto tuner 600W - AT-600

LDG AT-600PROII Desktop Auto Tuner, 600W

LDG desktop tuners are perfect for your home shack, but can also be used portable or mobile if the need arises. Different models handle RF power levels from 100 to 1000 watts. LDG’s generic tuners work with almost any transceiver or transmitter.

The LDG AT-600ProII is a general-purpose automatic tuner intended for use with midsize amplifiers with up to 600 watts output on SSB or 500 watts on CW from 1.8 – 54 MHz. For a higher wattage tuner, see the AT-1000ProII.

• Easy to Read Bar Graph
• Tune from 1.8 to 54 MHz
• Dual Antenna Switch
• Switched-L tuning network
• 600 watts SSB/CW, 300W Digital
• TWO year Warranty

Like most LDG tuners the AT-600ProII operates automatically, beginning a tuning cycle whenever the SWR exceeds a preset limit. To protect its circuitry it will not tune at power levels above 150 watts; bypass your amplifier (or place it in Standby) to complete a tuning cycle using only the exciter. The AT-600ProII also features LDG’s advanced memory tuning, providing 2,000 memory locations; when tuning near a previously used frequency it will recall the settings for nearly instant tuning. It learns your favorite frequencies and bands as you use it. You can also start a tuning cycle manually whenever necessary.

The AT-600ProII has a large, easy to read bar-graph wattmeter that show forward and reverse power with two selectable ranges (60 and 600 watts), as well as an SWR meter. The AT-600ProII will interface with many popular transceivers so you can start a tuning cycle with the radio’s TUNE button. Dedicated control buttons on the tuner allow you to fine-tune capacitance and inductance on those rare occasions when the AT-600ProII can’t find a perfect match by itself.

The AT-600ProII features two output connectors so you can easily switch between two antennas. There are 2,000 memory locations for each antenna, allowing nearly instant returning on frequencies you’ve used before.

The AT-600ProII will tune from 1.8 to 54.0 MHz continuously, and will match Yagis, dipoles, inverted-Vs, slopers, or virtually any coax-fed antenna from 6 to 1000 ohms impedance (16 – 150 ohms on 6 meters). Tuning time is usually under 10 seconds; memory tuning time is under 0.2 seconds. Longwires or antennas fed with ladder line require an external balun, not included.

All LDG tuners come with a two year fully transferable warranty, and LDG’s legendary customer service.

Download the user manual here.