At 12:52 PM 1/9/99 +0000, Dave_K9NX wrote:
>
>Rick
>
>I am using just such a combination with the following observations
>
>The "Good News". Your TS850 will likely tune the C3S just fine on 12 and
>17. I say likely because there are certain impedances that the 850 wont
>match. Since the C3S does not present a 50 ohm load to the coax on 12/17,
>the feed point impedance your 850 sees will be different depending on the
>length of the coax feeding the C3S. If you find the 850 is unable to match
>a the C3S on a given band then add (or subtract) 5' of coax and try again.
>In my case the TS-850 will match the C3S on 12/17 just fine, for that
>matter it matches the C3S on 30M, 40M, 80M and even 160M. Is it an
>efficient radiator on those other bands ..... not likely.....which brings
>me to..........
>
>The "Bad News". The C3S is not that great an antenna (in my opinion) on 12
>and 17 either. On 17M my C3S which is mounted at 40' plays no better in on
>the air reports than my ground mounted Butternut vertical. On 12M the
>performance is even worse, my Butternut consistently outperforms my C3S on
>12M by at least 2 S units. So while the C3S is advertised as a12/17M
>antenna in practice its not a very good 12/17M antenna, Because I am
>serious about the WARC bands I then designed a home brew 4 element beam
>(2-12 / 2-17) using a single feed similar to the C3S. This antenna is
>mounted 7' below and at right angles to the C3S to minimize coupling. Even
>at a height of only 33' this antenna out performs the C3S by 4 S units on
>12M and 2 S units on 17M.
>
>Caveat Emptor, individual results may vary, please consult your local Elmer
>for more specific advice. If extreme performance anxiety results try to
>remind yourself "this is only a hobby".
In this respect, the C-3 appears to be a much better antenna on 12 and 17,
so maybe it's worth the extra 6 feet of boom.
73, Pete Smith N4ZR
n4zr@contesting.com
Loud is good.
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