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Home » Products » Generic Tuners » AT-1000ProII » Description



The LDG AT-1000ProII is our flagship automatic tuner. Made for QRO hams, it will handle 1,000 watts SSB or 500 watts FM/Digital from 1.8-54 MHz.

Like all LDG tuners the AT-1000ProII 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; you simply bypass your amplifier (or place it in Standby) to complete a tuning cycle using only the exciter. The AT-1000ProII 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-1000ProII has a large, easy to read bar-graph wattmeter that show forward and reverse power with two selectable ranges (100 and 1,000 watt scales) as well as an SWR meter. The optional M-1000 4.5" analog meter shows forward power (100 and 1,000W scales), reverse power, or SWR in peak or average mode. The AT-1000ProII 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-1000ProII can�t find a perfect match by itself.

The AT-1000ProII 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-1000ProII 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. The AT-1000ProII is intended for use with exciters with no more than 100 watts output when used with solid-state transmitters; vacuum tube transmitters cut the power ratings in half.

All LDG tuners come with a two year fully transferable warranty, and LDG�s legendary customer service. Contact your LDG dealer to order.

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