Overview

LDG Electronics AT-200ProII Automatic Antenna Tuners

There was a time when 100 watts was a lot of power. Today, more and more transceivers feature 200 watts of output. Even though many of these modern radios feature a built-in tuner, the tuners' range and features are usually quite limited.

Break through those barriers with LDG Electronics AT-200ProII Automatic Antenna Tuners! They're designed for this new generation of rigs and are specifically recommended for Ten-Tec and tube radios. Many QRP operators have a small 100-150 watt amplifier for times when you need a few more S-units. The AT-200ProII tuners are ideal for this kind of operation; their minimum required power is only 5 watts, but they will handle higher power as well. The AT-200ProII tuners will handle up to 250 watts SSB or CW (75 watts RTTY, FT8) on 1.8-30 MHz, and 100 watts on 54 MHz. They feature LDG's state-of-the-art, processor-controlled Switched-L tuner.

The AT-200ProII tuners will match virtually any kind of coax-fed antenna, including Yagis, dipoles, inverted Vs, slopers, loops, or just about anything. They will typically match a 10:1 SWR down to 1.5:1 in just a few seconds. You can also use the AT-200ProIIs with end-fed antennas, random wires, and antennas fed with ladder line with the optional LDG balun. Operation couldn't be simpler--while transmitting a carrier, just press the tune button. An automatic tuning cycle will begin and then end a few seconds later with the tuners set at the lowest SWR (almost instant for frequencies stored in memory).

The AT-200ProII automatic memory tuners are the latest in a long line of innovative LDG Electronics tuners and will allow you to get the most out of your Kenwood, Yaesu, Ten-Tec, or ICOM radio that operates at higher power.

Additional features include:

* 5 to 250 watts SSB and CW (100 watts on 6M, 75 watts HF Digital, RTTY, PSK, FT8)
* Easy-to-read LED bar graph display for RF power, SWR, and status
* LEDs for antenna position and bypass
* 4,000 memories (2,000 for each antenna) for instantaneous band changing
* 2-position antenna switch with memories for four antennas on each position
* Tuning time: 0.5 to 6 seconds full tune, less than 0.1 second memory tune
* Built-in frequency counter for memory operation
* Tunes 6 to 800 ohm loads (16 to 150 ohms on 6m), 6 to 3,600 ohms with optional 4:1 balun
* Includes 6 ft. DC power cable
* Power requirements: 11 to 16V DC at 750 mA max during tuning
* Weighs 2 lbs.

Note: For additional information, please look at the files under the "Documentation" tab.

If you are running an older, high-output tube rig, a newer 200 watt rig, or have a small amplifier to give your QRP rig a boost, consider LDG Electronics AT-200ProII Automatic Antenna Tuners from DX Engineering!

Documentation