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|    AMATEUR_RADIO    |    Ham radio for when Armageddon strikes    |    2,531 messages    |
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|    Message 353 of 2,531    |
|    Roy Witt to TOM WALKER    |
|    Resurrected    |
|    15 Apr 14 17:03:36    |
      Greetings TOM!               HG>RW>> I used to think that way when I was an experimenting CBer c1965,        HG>RW>> chasing high SWR with coax lengths in intervals of 'wavelengths'        HG>RW>> and parts thereof.               HG>TW>> BUT it CAN be done. And while the point may be arguable I suspect        HG>TW>> that WHEN YOU find the Perfect length it would be less loss than        HG>TW>> THE BALUN               HG>> You are only fooling yourself, the SWR meter and the transmitter        HG>> that there is a low SWR. The fact is that the antenna is still not        HG>> matched to 50 ohms and you cannot tune the antenna with any sort of        HG>> "antenna tuner". The same bad old SWR still exists along the feeding        HG>> cable.               HG>> The antenna tuner is a misnomer since what it actually is is an        HG>> "Impedance matching network". Tuning the antenna has to be done        HG>> at the antenna itself.               TW> This discussion is not about "Tuners"              Actually it is. It's about matching or 'tuning' an antenna to 50 ohms. An       antenna tuner that Holger is talking about only fools the xmitter into       seeing (aka thinking) a 50 ohm load, but does nothing to correct the SWR       on the coax.               TW> but about Balun Matching or 1/2 wavelength Coax matching a dipole              Baluns are used to tune the antenna to 50ohms. A 1/2 wavelength of coax       isn't matching the antenna to anything.                      Have a day!               R\%/itt - K5RXT                                                 --- GoldED+/W32 1.1.5-31012       --- D'Bridge 3.99        * Origin: HAM Radio, aka Amateur Radio. 804? Over! (1:387/22)    |
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