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
Like all 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; you simply
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
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 optional M-600 4.5" analog meter
shows forward power (60 and 600 watt scales), reverse power, or SWR in peak or average
mode. 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-1000ProII can�t find a perfect match by itself.
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,
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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