Thanks Jim. I should qualify ATU as 'antenna tuning unit' instead of 'automatic tuning unit'
My fingers just run too fast. 73, Johnny VR2XMC ________________________________ 寄件人﹕ Jim Brown <[email protected]> 收件人﹕ [email protected] 傳送日期﹕ 2011/4/8 (五) 2:51:03 PM 主題： Re: [Elecraft] KPA 500 and ATU On 4/7/2011 6:18 PM, Johnny Siu wrote: > IMHO, ATU is nearly a must. That depends a lot on your style of operating, your antennas, your budget, and how much power you are willing to give away in the antenna tuner. ARRL lab tests have shown that some antenna tuners are a lot more efficient than others. I have a half dozen wire antennas, and do a lot of contesting. I have five of the high power Ten Tec 229 and 238 manual tuners, which have better than average efficiency and antenna selector switching built in. Each tuner is dedicated to one or two antennas, and each tuner feeds the power amp through a selector switch.Before a contest, I simply set them up for the bands and antennas I'll be working, and switch between them. These tuners are widely available used for $250 $325, so I bought them for not much more than the cost of one decent auto tuner. And because all my eggs are not in one basket, I can split the tuners up between two rig and amp combinations for SO2R operation. Yes, auto tuners are nice, but they're not the only good way to skin a cat. :) 73, Jim K9YC ______________________________________________________________ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
