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

"/* 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!

"/* 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

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

"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

don't worry about it... cut it any length you can and use a tuner... it will
work all bands from 160m to 6m and probably higher. don't count inches, GET
ON THE AIR and have fun!

"Dee D. Flint" wrote in message
...

"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

"Dave" wrote in message
...
don't worry about it... cut it any length you can and use a tuner... it
will
work all bands from 160m to 6m and probably higher. don't count inches,
GET
ON THE AIR and have fun!


I agree that he should just get on the air. But those inaccurate conversions
although only inches result in feet in antenna dimensions and is not
insignificant. If one wants to get into resonant antennas, it becomes
particularly important. Even at 10 meters, the difference is 2.5 feet for a
full wave length antenna between using a conversion of 3 feet per meter
versus 3.25 feet (3 feet 3 inches) per meter. For a half wave dipole it
would be 1.25 feet. At 160 meters the difference climbs to 40 feet for a
full wave loop and 20 feet for a dipole.

These differences can be important even with a tuner. We've got an 80 meter
loop cut for the voice segment. My internal tuner will NOT tune it for the
CW portion so I must use my external tuner. If we had based the length on
using 3ft/meter rather than the 3.25ft/meter, it would have been too short
to tune on even the voice portion of the band.

Dee D. Flint, N8UZE

"Dee D. Flint" wrote in message
...

"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

"Dave" wrote in message
...
don't worry about it... cut it any length you can and use a tuner... it
will
work all bands from 160m to 6m and probably higher. don't count inches,
GET
ON THE AIR and have fun!


I agree that he should just get on the air. But those inaccurate conversions
although only inches result in feet in antenna dimensions and is not
insignificant. If one wants to get into resonant antennas, it becomes
particularly important. Even at 10 meters, the difference is 2.5 feet for a
full wave length antenna between using a conversion of 3 feet per meter
versus 3.25 feet (3 feet 3 inches) per meter. For a half wave dipole it
would be 1.25 feet. At 160 meters the difference climbs to 40 feet for a
full wave loop and 20 feet for a dipole.

These differences can be important even with a tuner. We've got an 80 meter
loop cut for the voice segment. My internal tuner will NOT tune it for the
CW portion so I must use my external tuner. If we had based the length on
using 3ft/meter rather than the 3.25ft/meter, it would have been too short
to tune on even the voice portion of the band.

Dee D. Flint, N8UZE

"Dee D. Flint" wrote in message
...

"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

On Fri, 2 Jul 2004 08:59:17 -0400, "Dee D. Flint"
wrote:


"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

Yes, this is how I bombed in basic Trigonometry and decided to not
become an an Electrical Engineer :-)

Bob
k5qwg

"Bob Miller" wrote in message
...
On Fri, 2 Jul 2004 08:59:17 -0400, "Dee D. Flint"
wrote:


"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

Yes, this is how I bombed in basic Trigonometry and decided to not
become an an Electrical Engineer :-)

Bob
k5qwg


I tend to remember that a meter is 39.37 inches. Makes for an extra step,
but fewer numbers to remember.

Tam/WB2TT