|[AMRadio] antenna tuners|
hogtamer at starband.net
Thu Apr 20 09:08:12 EDT 2006
Had it not been for "Couplers" over the last 25 yrs, I would have
been limited to operating possibly no more than 2 frequencies. I
built a Center Fed Zepp as my first antenna, because a very wise OLD
ham told me to build it and use it with a Coupler and I have been
using that antenna all over the USA and twice in Canada! Same
Antenna! Today I have a 160m Loop up 75' in the air also fed with
440 ohm ladder line and that has to be the very best antenna I have
had the pleasure to use, It is Matched with a Palstar 5K coupler and
it has worked well anywhere from 160m to 10m and all in between. I
have simply had great success and been able to work multiple bands
using Matching networks, Couplers, Tuners if you will. I honestly
would NOT be without one in my shack.
River House Radio
At 04:45 AM 4/20/2006, you wrote:
>I don't believe in them.
>If you can't resonate your antenna, then what are you doing?
>If you use a tuner, you are creating a voltage divider effect that
>creates a reactive load in your shack, to ground that makes your
>antenna "feed line + radiating elements".
>Over the years, the importance of having at least a 2:1 match with
>at least 1.5:1 some where in the the antenna design.
>Proper antenna design for your favorite frequencies is the best choice.
>I currently use a multi-element dipole to cover 80,40,20,15 and 10 meters.
>I just use a VSWR bridge and back off the power when the SWR rises
>close to 2:1.
>I am not saying my answer is the best, I am only stating my opinion.
>Just like microphones in the sound work I help out with at church.
>If they are not singing into the mic, I cannot "fix it" without
>creating a gain structure that is sucking up to feed back"
>You need to fix your problems at the source.
>I our cases, it is resonance of your antenna, by some means.
>Even my hamstick on my jeep does great due to attention to resonance.
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>Post: mailto:AMRadio at mailman.qth.net
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>AM List Admin: Brian Sherrod/w5ami, Paul Courson/wa3vjb
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