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LDG Electronics AT-600PROII

Auto tuner, 600W


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LDG AT-600PROII Autotuner

*Pictured with optional analog M-600 meter.*

Time was, 100 watts was a lot of power. Today, more and more mid-sized amps with 500 watts output are becoming popular. The LDG AT-600ProII is designed for this new generation of power levels.

The AT-600ProII will handle up to 600 watts SSB and CW and 300 on RTTY (1.8 – 30 MHz) and 250 watts on 54 MHz. It features LDG’s state-of-the-art, processor-controlled Switched-L tuner. It will match virtually any kind of coax-fed antenna, including Yagis, dipoles, inverted Vs, slopers, loops, just about anything. It will typically match a 10:1 SWR down to 1.5:1 in just a few seconds. You can also use the AT-600ProII with longwires, random wires and antennas fed with ladder line just by adding a balun.

The AT-600ProII features two antenna ports with a front-panel indicator showing which is in use, and separate memory banks for each antenna. The optional M-600 4.5" analog meter shows FWD (100 and 600W scales), REV, or SWR in Peak or Average. Easy to read LED bar-graph meters showing RF power, SWR and tuner status, tactile feedback control buttons and an LED bypass indicator complete the user interface. Any power source from 11 – 16 volts DC can be used; the AT-600ProII only draws up to 750mA.

Cycle 24’s not going anywhere any time soon. If you power up, LDG’s got your back with the new AT-600ProII. Order yours today.


  • 600 Watts SSB and CW, 250 watts on 6M. 250 watts PSK and digital. 
  • Easy to read LED bar graph display for RF power, SWR and status 
  • Optional M-600 4.5 inch analog meter.
  • 4,000 memories for instantaneous band changing



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