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#1
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I am new to this type of tuner and am hoping to benefit from other's
experience. My new balanced tuner has a parallel lc circuit. The output to the antenna is taken by clips placed on the coil. A series tuned link is used from the 50 ohm input. What is a short process for tuning? I have tried moving the taps around at 3 turn intervals and trying to minimize the SWR. It seems that if I tune the series tuned link off resonance the reflected power decreases, but so does the incident power. Ditto the parallel link. Must I put the tap on each turn of (the large coil) and see what comes out lowest? Or are there some "shortcuts". Is it likely that I will be able to produce a match over a wide range of impedances with this tuner? My first experiences have been rather frustrating to say the least. Thanks. Ed |
#2
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Allways start tapping at the outer ends of the coil (total L) and try to
find a point where SWR=1. If you don't succeed try tappping more toward the centre of the coil until you can get SWR=1 by turning the capacitors. I prefer the classic Z-match... easier to use. 73, Arend PA1ARE "Edward A. Feustel" wrote in message ... I am new to this type of tuner and am hoping to benefit from other's experience. My new balanced tuner has a parallel lc circuit. The output to the antenna is taken by clips placed on the coil. A series tuned link is used from the 50 ohm input. What is a short process for tuning? I have tried moving the taps around at 3 turn intervals and trying to minimize the SWR. It seems that if I tune the series tuned link off resonance the reflected power decreases, but so does the incident power. Ditto the parallel link. Must I put the tap on each turn of (the large coil) and see what comes out lowest? Or are there some "shortcuts". Is it likely that I will be able to produce a match over a wide range of impedances with this tuner? My first experiences have been rather frustrating to say the least. Thanks. Ed |
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