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Isn't my antenna a balun, or would that be UnUn?
My antenna seems to match the impedance of my transmission line (50 ohms) to
the impedance of the either (370 some-odd-ohms), isn't that a balun? Regards, John |
Well, since no one answered my post, I think I am going to toss this darn
balun away and get a "real" antenna... Trouble is, trying to find one which doesn't think it is a tuneable balun!!!! Regards, John |
On Fri, 29 Apr 2005 22:07:51 -0700, "John Smith"
wrote: My antenna seems to match the impedance of my transmission line (50 ohms) to the impedance of the either (370 some-odd-ohms), isn't that a balun? Regards, John How did you compute the impedance of the "either"? bob k5qwg |
"Balun" is a contraction for "balanced-to-unbalanced". It converts an
unbalanced drive source (such as a grounded coaxial feed) into a differential drive drive source that is completely floating with respect to ground or any other common point. Even if there were such a thing as the 'ether' (there isn't; elecromagnetic waves don't need a medium to propagate), your antenna would not be classified as a 'balun' just because it transforms your electrical feed into electromagnetic waves. It would more accurately be called a 'transducer' because it transforms energy from one form (electrical) to another form (electromagnetic). One of the characteristics of a transducer is that it has input coupling properties as well as output coupling properties, so in this respect part of your statement is sort of accurate - the part about impedance matching. Joe W3JDR "John Smith" wrote in message ... My antenna seems to match the impedance of my transmission line (50 ohms) to the impedance of the either (370 some-odd-ohms), isn't that a balun? Regards, John |
John Smith wrote:
My antenna seems to match the impedance of my transmission line (50 ohms) to the impedance of the either (370 some-odd-ohms), isn't that a balun? Is the Ęther balanced or unbalanced? Maybe balanced in free space and unbalanced on Earth? -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 100,000 Newsgroups ---= East/West-Coast Server Farms - Total Privacy via Encryption =--- |
John Smith wrote:
Well, since no one answered my post, I think I am going to toss this darn balun away and get a "real" antenna... Trouble is, trying to find one which doesn't think it is a tuneable balun!!!! Hehe! Actually, John, I am posting to see if you could include a few lines at least of the msg you are responding to. I enjoy your posts, but I don't always know what they are about! 8^) - Mike KB3EIA - |
John Smith wrote:
Well, since no one answered my post, I think I am going to toss this darn balun away and get a "real" antenna... John, expecting an answer during the time from midnight to 1.5 hours later might be a tad delusional. -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 100,000 Newsgroups ---= East/West-Coast Server Farms - Total Privacy via Encryption =--- |
W3JDR wrote:
Even if there were such a thing as the 'ether' (there isn't; elecromagnetic waves don't need a medium to propagate), ... Actually they do. It is generally accepted that EM waves cannot propagate outside of the universe precisely because of the absence of any structure (medium). Our medium of space is thought to have at least ten dimensions. -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 100,000 Newsgroups ---= East/West-Coast Server Farms - Total Privacy via Encryption =--- |
On Sat, 30 Apr 2005 08:28:23 -0500, Cecil Moore
wrote: John Smith wrote: Well, since no one answered my post, I think I am going to toss this darn balun away and get a "real" antenna... John, expecting an answer during the time from midnight to 1.5 hours later might be a tad delusional. "John" always gets prompt responses to his (her) posts....even if he (she) has to do it him(her)self. That's why he (she) often doesn't include any quoted text. He (she) knows what he (she) said, so why bother repeating him(her)self? |
Wes Stewart wrote:
On Sat, 30 Apr 2005 08:28:23 -0500, Cecil Moore wrote: John Smith wrote: Well, since no one answered my post, I think I am going to toss this darn balun away and get a "real" antenna... John, expecting an answer during the time from midnight to 1.5 hours later might be a tad delusional. "John" always gets prompt responses to his (her) posts....even if he (she) has to do it him(her)self. That's why he (she) often doesn't include any quoted text. He (she) knows what he (she) said, so why bother repeating him(her)self? You forgot to include "it" in the "he (she)" nomenclature. 73, Tom Donaly, KA6RUH |
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