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#1
March 1st 06, 11:58 AM
posted to rec.radio.amateur.dx
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pse info balun
I will made a dipole for 10.1 Mhz v inverted , with total lenght 15 mtrs.
What is the appropriate balun ? 1:1 1:2 1:5 or others ? tnx |
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#2
March 1st 06, 04:06 PM
posted to rec.radio.amateur.dx
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pse info balun
condor wrote:
I will made a dipole for 10.1 Mhz v inverted , with total lenght 15 mtrs. What is the appropriate balun ? 1:1 1:2 1:5 or others ? tnx The feedpoint impedance of a 15m dipole at 10.1MHz will be reasonably close to 50 ohms, so you want a 1:1 balun. -- Doug Smith W9WI Pleasant View (Nashville), TN EM66 http://www.w9wi.com |
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#3
March 1st 06, 06:18 PM
posted to rec.radio.amateur.dx
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pse info balun
On Wed, 01 Mar 2006 15:06:22 GMT, Doug Smith W9WI
wrote: condor wrote: I will made a dipole for 10.1 Mhz v inverted , with total lenght 15 mtrs. What is the appropriate balun ? 1:1 1:2 1:5 or others ? tnx The feedpoint impedance of a 15m dipole at 10.1MHz will be reasonably close to 50 ohms, so you want a 1:1 balun. It depends on the feedline impedance. If 50 ohms, a 1:1 balun is probably appropriate. If open-wire line, a tuner at the bottom is probably best. |
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