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May 21st 09, 04:42 PM
posted to rec.radio.amateur.antenna
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ATU: Correct way to specify impedance range
ve2pid wrote:
Hi to all, Just got my new ATU. The specs mentionned: Tunes 6 to 600 ohms (about 10:1 SWR range). 16 to 150 on 6M (about 3:1) It sems that this is the standardized (?) way to mention specifications... But, since impedances have both a resistive and reactive compoment, doses it means 6 to 600 Ohms "resistive"? For example , if Z= 500-J800 ohm, is it 'tunable'? I have a doubt because the impedance could also mean sqrt(500^2+800^2)=943,4 Ohms.. Thanks de Pierre Only the manufacturer can tell you what they mean. It would be interesting to see what they say when you ask. Roy Lewallen, W7EL |
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