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Old July 2nd 04, 06:42 AM
/* frank */
 
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Default Can i work 7~28 MHz with a 10 mt dipole?

I can install only a dipole of about 10 meters
(as inverted V).

Is there any project, any commercial antenna
of such length, that allow me to work all band
7 - 14 - 21 - 28 MHz ?

Thanks
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Old July 2nd 04, 12:17 PM
Dave
 
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"/* frank */" wrote in message
...
I can install only a dipole of about 10 meters
(as inverted V).


sure, go for it!


Is there any project, any commercial antenna
of such length, that allow me to work all band
7 - 14 - 21 - 28 MHz ?


just put one up, add a tuner if your radio doesn't have one, and get on the
air! it will work fine, cover all bands from dc to daylight, is cheap, easy
to use, whitens your teeth while you transmit, and is non-fattening. don't
go pay anyone for it, just grab some wire and (horrors upon horrors) build
it yourself.

oh, and ignore the inevitable discussion that will follow shortly about why
you have to use open wire feeders instead of coax, endless debate about swr,
tuning, reflections, losses, matching, etc, etc, etc... stop reading now and
go get on the air!


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Old July 2nd 04, 12:17 PM
Dave
 
Posts: n/a
Default


"/* frank */" wrote in message
...
I can install only a dipole of about 10 meters
(as inverted V).


sure, go for it!


Is there any project, any commercial antenna
of such length, that allow me to work all band
7 - 14 - 21 - 28 MHz ?


just put one up, add a tuner if your radio doesn't have one, and get on the
air! it will work fine, cover all bands from dc to daylight, is cheap, easy
to use, whitens your teeth while you transmit, and is non-fattening. don't
go pay anyone for it, just grab some wire and (horrors upon horrors) build
it yourself.

oh, and ignore the inevitable discussion that will follow shortly about why
you have to use open wire feeders instead of coax, endless debate about swr,
tuning, reflections, losses, matching, etc, etc, etc... stop reading now and
go get on the air!


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Old July 2nd 04, 12:31 PM
Peter Parker
 
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"/* frank */" wrote in message
...
I can install only a dipole of about 10 meters
(as inverted V).

Is there any project, any commercial antenna
of such length, that allow me to work all band
7 - 14 - 21 - 28 MHz ?


A very good antenna is a half-sized G5RV (7.5m each side). Excellent
results 7 - 28 MHz. Use tuned feeders (any length) and ATU.

73, Peter


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Old July 2nd 04, 12:31 PM
Peter Parker
 
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"/* frank */" wrote in message
...
I can install only a dipole of about 10 meters
(as inverted V).

Is there any project, any commercial antenna
of such length, that allow me to work all band
7 - 14 - 21 - 28 MHz ?


A very good antenna is a half-sized G5RV (7.5m each side). Excellent
results 7 - 28 MHz. Use tuned feeders (any length) and ATU.

73, Peter




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Old July 2nd 04, 01:43 PM
Bob Miller
 
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Default

On Fri, 02 Jul 2004 07:42:24 +0200, /* frank */
wrote:

I can install only a dipole of about 10 meters
(as inverted V).

Is there any project, any commercial antenna
of such length, that allow me to work all band
7 - 14 - 21 - 28 MHz ?

Thanks


If you can make it 11 meters long, about 33 feet, that should get you
14 thru 28 mhz, with the use of 450 ohm feedline and a manual tuner.
If you can stretch it to 51 feet, you can add 10 and 7 mhz.

bob
k5qwg


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Old July 2nd 04, 01:43 PM
Bob Miller
 
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On Fri, 02 Jul 2004 07:42:24 +0200, /* frank */
wrote:

I can install only a dipole of about 10 meters
(as inverted V).

Is there any project, any commercial antenna
of such length, that allow me to work all band
7 - 14 - 21 - 28 MHz ?

Thanks


If you can make it 11 meters long, about 33 feet, that should get you
14 thru 28 mhz, with the use of 450 ohm feedline and a manual tuner.
If you can stretch it to 51 feet, you can add 10 and 7 mhz.

bob
k5qwg


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Old July 2nd 04, 01:59 PM
Dee D. Flint
 
Posts: n/a
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"Bob Miller" wrote in message
...
On Fri, 02 Jul 2004 07:42:24 +0200, /* frank */
wrote:

I can install only a dipole of about 10 meters
(as inverted V).

Is there any project, any commercial antenna
of such length, that allow me to work all band
7 - 14 - 21 - 28 MHz ?

Thanks


If you can make it 11 meters long, about 33 feet, that should get you
14 thru 28 mhz, with the use of 450 ohm feedline and a manual tuner.
If you can stretch it to 51 feet, you can add 10 and 7 mhz.

bob
k5qwg



10 meters = 32.8 feet
11 meters = 36.1 feet

A meter is approximately 3 feet and 3 inches NOT just 3 feet. Those inches
add up after a while.

Dee D. Flint, N8UZE

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Old July 2nd 04, 01:59 PM
Dee D. Flint
 
Posts: n/a
Default


"Bob Miller" wrote in message
...
On Fri, 02 Jul 2004 07:42:24 +0200, /* frank */
wrote:

I can install only a dipole of about 10 meters
(as inverted V).

Is there any project, any commercial antenna
of such length, that allow me to work all band
7 - 14 - 21 - 28 MHz ?

Thanks


If you can make it 11 meters long, about 33 feet, that should get you
14 thru 28 mhz, with the use of 450 ohm feedline and a manual tuner.
If you can stretch it to 51 feet, you can add 10 and 7 mhz.

bob
k5qwg



10 meters = 32.8 feet
11 meters = 36.1 feet

A meter is approximately 3 feet and 3 inches NOT just 3 feet. Those inches
add up after a while.

Dee D. Flint, N8UZE

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Old July 2nd 04, 03:17 PM
'Doc
 
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Default

Franj,
Can it be done? Yes. Will it be the 'best' of antennas
on all those bands? No. But, if that's all that you can
do, then do it. Anything is 'better' than nothing! Beware
of antenna manufacturor's claims. Taxes are never going down,
and there's no 'miracle' antennas that do everything...
'Doc
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