LDG Electronics Z-817 Automatic Antenna Tuner 1.8-54 MHz， 0.1-20 Watts， 2000 Memories， 2 Year Warranty<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> RF Power 0.1 to 20 watts SSB and CW， 5 watts for digital modes. </span></li><li><span class="a-list-item"> Battery operated 4 x 1.5V Alkaline AA (not included) - Dimensions: 5.1”L， 4.7”W， 1.7”H. Weight: 9.3 ounces (without batteries). </span></li><li><span class="a-list-item"> Built-in CAT port interface. CAT thru port for computer connection. 38400 baud. </span></li><li><span class="a-list-item"> 2000 memories when used with FT-817 interface (200 memories for other radios) </span></li><li><span class="a-list-item"> 1.8 to 54 MHz coverage (continuous coverage for MARS) Tunes 6 to 600 ohms (about 10:1 SWR range). 16 to 150 on 6M (about 3:1) </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41p4vL%2BfWpL.jpg" noproxy>