Hi Grant and Todd
I suggest there is also potential for a 4th problem - mutual coupling
between the vertical wire and supporting tree. Any such coupling would be
smaller for the 43 ft vertical if it was located further away from the tree.
It would be interesting to see if there is any
Unfortunately, most are just deleting the conversation without reading it
like I usually do, because of the title...
Chuck W5PR
On Sat, Dec 29, 2018 at 5:31 PM Mike Waters wrote:
> On Sat, Dec 29, 2018, 8:58 AM wrote:
>
> > ... to bring this discussion to the high level technical discussion
On Sat, Dec 29, 2018, 8:58 AM wrote:
> ... to bring this discussion to the high level technical discussion this
> group is used to
YE! :-)
73, Mike
www.w0btu.com
_
Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Exactly! You have a lot of loss in your ground (or something), Todd.
Perhaps it's the lack of a proper feedline choke.
73, Mike
www.w0btu.com
On Sat, Dec 29, 2018, 11:00 AM Grant Saviers wrote:
> Problem #1. The swr indicates about a 140Khz plus < 2:1 bandwidth (2 *
> 1880-1810) which implies
George your last point is a good one. Take any vertical array such an 8 or 9
circle array and point it at a resonant electrical 1/4 wave vertical. The
pattern will be destroyed at 200 or 500ft. The TX antenna has to be isolated
above ground for the RX antenna to perform properly. So I also suggest
On Sat, Dec 29, 2018 at 8:59 AM Grant Saviers wrote:
> Problem #1. The swr indicates about a 140Khz plus < 2:1 bandwidth (2 *
> 1880-1810) which implies a high radial resistance. Are the elevated
> radials fully insulated from trees, not contacting foliage, etc? Add
> three more.
> Problem #2.
Mike,
N4IS (JC) does know what he is talking about.
His Waller Flag, however, can be vertical or horizontal. The Horizontal WF
(HWF) is certainly a class above all other loops, provided it is more than
100' up. But you can have a Vertical WF at any height -- in fact lower is
better. Not as
Problem #1. The swr indicates about a 140Khz plus < 2:1 bandwidth (2 *
1880-1810) which implies a high radial resistance. Are the elevated
radials fully insulated from trees, not contacting foliage, etc? Add
three more.
Problem #2. Your coiled coax choke may be making things worse. Check
Hi Dave , Bob and Jay
Fist of all thanks Dave and Bob to bring this discussion to the high level
technical discussion this group is used to, and my public sincere apologize
my friend Jay for my emotional behavior that I regrets.
160m is a unique band that has only one noise component on sky
