Currently the top loop is at only 20ft but I am making many contacts. Soon
however they will be placed off a sidearm on the tower.
The top loop could then be as high as 80 ft.

I have read and read about this topic. Does anyone have any first hand
knowledge of 6M height above ground comparisons especially for stacked
loops? Thanks....

--

Charlie-AD5TH

On Tue, 27 Dec 2005 10:52:54 -0600, "Charlie"
wrote:

Currently the top loop is at only 20ft but I am making many contacts. Soon
however they will be placed off a sidearm on the tower.
The top loop could then be as high as 80 ft.

I have read and read about this topic. Does anyone have any first hand
knowledge of 6M height above ground comparisons especially for stacked
loops? Thanks....

You really want the lower of the two higher than 20ft.

It's really simple, higher is better. We are talking VHF and if there
is nothing going on propagation wise then height above average terrain
determines what your radio horizon will be. For that higher wins.

Simply put, 80ft will be much better than 20 and only slightly better
than 40.

Allison

Thank you Allison.....

--

Charlie


wrote in message
...
On Tue, 27 Dec 2005 10:52:54 -0600, "Charlie"
wrote:

Currently the top loop is at only 20ft but I am making many contacts.
Soon
however they will be placed off a sidearm on the tower.
The top loop could then be as high as 80 ft.

I have read and read about this topic. Does anyone have any first hand
knowledge of 6M height above ground comparisons especially for stacked
loops? Thanks....

You really want the lower of the two higher than 20ft.

It's really simple, higher is better. We are talking VHF and if there
is nothing going on propagation wise then height above average terrain
determines what your radio horizon will be. For that higher wins.

Simply put, 80ft will be much better than 20 and only slightly better
than 40.

Allison

ORIGINAL MESSAGE:

On Tue, 27 Dec 2005 10:52:54 -0600, "Charlie"
wrote:

Currently the top loop is at only 20ft but I am making many contacts. Soon
however they will be placed off a sidearm on the tower.
The top loop could then be as high as 80 ft.

I have read and read about this topic. Does anyone have any first hand
knowledge of 6M height above ground comparisons especially for stacked
loops? Thanks....

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

I'm not that sure about loops, but for yagis working DX, the optimum
height seems to be about 35 feet. Higher is better for ground wave,
but for DX, 35 is best, believe it or not. This has been proven with
crank up towers many times. It may well be the same for loops.

73, Bill W6WRT

Hi Bill...this is also what I have found to be the crux of my dilemma. If I
should strive to optimize height for DX or terrestrial contacts.
I have need for both so I am going to need to compromise a bit. TY again for
your input.

--

Charlie


"Bill Turner" wrote in message
...

ORIGINAL MESSAGE:

On Tue, 27 Dec 2005 10:52:54 -0600, "Charlie"
wrote:

Currently the top loop is at only 20ft but I am making many contacts.
Soon
however they will be placed off a sidearm on the tower.
The top loop could then be as high as 80 ft.

I have read and read about this topic. Does anyone have any first hand
knowledge of 6M height above ground comparisons especially for stacked
loops? Thanks....

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

I'm not that sure about loops, but for yagis working DX, the optimum
height seems to be about 35 feet. Higher is better for ground wave,
but for DX, 35 is best, believe it or not. This has been proven with
crank up towers many times. It may well be the same for loops.

73, Bill W6WRT

"Charlie" wrote in message
...
Currently the top loop is at only 20ft but I am making many contacts.
Soon
however they will be placed off a sidearm on the tower.
The top loop could then be as high as 80 ft.

I have read and read about this topic. Does anyone have any first hand
knowledge of 6M height above ground comparisons especially for stacked
loops? Thanks....


6m is line-of-sight, so higher is better than lower.
If you have the opportunity to put it 80 ft high - do it.
why are you stacking loops? why not make a quad ?

On Wed, 28 Dec 2005 02:33:45 -0500, "Hal Rosser"
wrote:


"Charlie" wrote in message
...
Currently the top loop is at only 20ft but I am making many contacts.
Soon
however they will be placed off a sidearm on the tower.
The top loop could then be as high as 80 ft.

I have read and read about this topic. Does anyone have any first hand
knowledge of 6M height above ground comparisons especially for stacked
loops? Thanks....


6m is line-of-sight, so higher is better than lower.
If you have the opportunity to put it 80 ft high - do it.
why are you stacking loops? why not make a quad ?


I can answer for him. Stacked loops offer some amount of gain
but are omnidirectional. A 2 element quad, offers slightly more gain
but is directional. If both are on the SIDE of a tower, one has to
be turned and is expensive to do that.

Actually a single loop has better high angle when mounted high up
than a stacked pair.

After trying a lot of 6m antennas. Quads with wires thinner than 1/4"
are only ok but doo poorly with ice and high wind. I'd do a yagi of
4 or more elements for gain and F/B and a loop up high for local
nets(omni).

Allison

On Wed, 28 Dec 2005 02:33:45 -0500, Hal Rosser wrote:

"Charlie" wrote in message
...
Currently the top loop is at only 20ft but I am making many contacts.
Soon
however they will be placed off a sidearm on the tower.
The top loop could then be as high as 80 ft.

I have read and read about this topic. Does anyone have any first hand
knowledge of 6M height above ground comparisons especially for stacked
loops? Thanks....


6m is line-of-sight, so higher is better than lower.

IT IS??? !!! Then, I guess my confirmed QSO's with Japan, Australia,
Greenland, Chile, and others -- plus all states except R.I. (sigh...)
from western Colorado (while running just 9.5 watts) simply never
happened.

Jonesy
--
Marvin L Jones | jonz | W3DHJ | linux
Pueblo, Colorado | @ | Jonesy | OS/2 __
38.24N 104.55W | config.com | DM78rf | SK

On 28 Dec 2005 17:00:28 GMT, Allodoxaphobia
wrote:

On Wed, 28 Dec 2005 02:33:45 -0500, Hal Rosser wrote:

"Charlie" wrote in message
...
Currently the top loop is at only 20ft but I am making many contacts.
Soon
however they will be placed off a sidearm on the tower.
The top loop could then be as high as 80 ft.

I have read and read about this topic. Does anyone have any first hand
knowledge of 6M height above ground comparisons especially for stacked
loops? Thanks....


6m is line-of-sight, so higher is better than lower.

IT IS??? !!! Then, I guess my confirmed QSO's with Japan, Australia,
Greenland, Chile, and others -- plus all states except R.I. (sigh...)
from western Colorado (while running just 9.5 watts) simply never
happened.

Jonesy

It is if the propagation isn't there or the moon is not a good shot.


Then again I only have 14 countries on under 20W in the last 3 years.
I need KH and Alaska for WAS. RI is next door for me being in MA.
Even with the off peak years there is a lot of propagation
that pops up at odd times.

Allison

"Allodoxaphobia" wrote in message
...
On Wed, 28 Dec 2005 02:33:45 -0500, Hal Rosser wrote:

"Charlie" wrote in message
...
Currently the top loop is at only 20ft but I am making many contacts.
Soon
however they will be placed off a sidearm on the tower.
The top loop could then be as high as 80 ft.

I have read and read about this topic. Does anyone have any first hand
knowledge of 6M height above ground comparisons especially for stacked
loops? Thanks....


6m is line-of-sight, so higher is better than lower.

IT IS??? !!! Then, I guess my confirmed QSO's with Japan, Australia,
Greenland, Chile, and others -- plus all states except R.I. (sigh...)
from western Colorado (while running just 9.5 watts) simply never
happened.

Jonesy
--
Marvin L Jones | jonz | W3DHJ | linux
Pueblo, Colorado | @ | Jonesy | OS/2 __
38.24N 104.55W | config.com | DM78rf | SK

OOPS! - sorry, I forgot about 50M DX - skip does happen at 50mhz sometimes
I hear its an enjoyable pass-time to attempt long-distance short-duration
contacts on 50mhz.
Does ducting also occur on 50 ?