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Dg Arnholt <dgarnholt@...>
kinda thought it was that. still the kenwood shuting down is a mystery..i didnt think it had swr shut down.. hope the finals are ok. oh yeah the antenna problem simple :) wire touching a tree..gonna get a rope and pull it off and in the future get some help to move the antenna leg. i would cut the tree but this is rental property
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My antenna wires touch tree limbs all
the time. That shouldn't cause you any problems.
72,
Nick, WA5BDU
On 3/10/2013 7:20 PM, Dg Arnholt wrote:
toggle quoted message
Show quoted text
kinda thought it was that. still the kenwood shuting
down is a mystery..i didnt think it had swr shut down..
hope the finals are ok.
oh yeah the antenna problem simple :) wire touching a
tree..gonna get a rope and pull it off and in the future
get some help to move the antenna leg. i would cut the
tree but this is rental property
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Todd K7TFC
On Mon, Mar 11, 2013 at 6:53 PM, Nick-WA5BDU <nick-wa5bdu@...> wrote:
My antenna wires touch tree limbs all the time. That shouldn't cause you any problems.
Does it make a difference if the wire is insulated or bare when it touches trees?
73,
Todd ------------------------------------------------------------------------------------ K7TFC / Medford, Oregon, USA / CN82ni / UTC-8 ------------------------------------------------------------------------------------
QRP (CW & SSB) / EmComm / SOTA / Homebrew / Design
72,
Nick, WA5BDU
On 3/10/2013 7:20 PM, Dg Arnholt wrote:
kinda thought it was that. still the kenwood shuting
down is a mystery..i didnt think it had swr shut down..
hope the finals are ok.
oh yeah the antenna problem simple :) wire touching a
tree..gonna get a rope and pull it off and in the future
get some help to move the antenna leg. i would cut the
tree but this is rental property
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KK0S
- I think the answer here might be, "Yes - but..." Even at QRP power levels, there can be varying amounts of interplay depending on where the tree is touching the antenna along the voltage/current (impedance) profile of the antenna. The affect can also be influenced with how wet or dry is the bark of the tree. There was an article years ago about the US Military using living trees as vertical antennas... not overwhelming results if I remember correctly....
72,
Bruce - KK0S
toggle quoted message
Show quoted text
--- In 4sqrp@..., Nick-WA5BDU <nick-wa5bdu@...> wrote:
My antenna wires touch tree limbs all the time. That shouldn't cause
you any problems.
72,
Nick, WA5BDU
On 3/10/2013 7:20 PM, Dg Arnholt wrote:
kinda thought it was that. still the kenwood shuting down is a
mystery..i didnt think it had swr shut down.. hope the finals are ok.
oh yeah the antenna problem simple :) wire touching a tree..gonna get
a rope and pull it off and in the future get some help to move the
antenna leg. i would cut the tree but this is rental property
<http://groups.yahoo.com/group/4sqrp/post;_ylc=X3oDMTJwMGdzcWM5BF9TAzk3MzU5NzE0BGdycElkAzg3MDE2MjU2BGdycHNwSWQDMTcwNTA2MzEwOARtc2dJZAM2NDUEc2VjA2Z0cgRzbGsDcnBseQRzdGltZQMxMzYyOTYxMjIz?act=reply&messageNum=645>
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One of the ham mags had a article about using a tree as a vertical. Don't
remember the issue or what the conclusion was. Must not have been good or guys
would be using it for portable work! 72 Geo/W2BPI
In a message dated 3/12/2013 5:47:14 A.M. Eastern Daylight Time,
bbarley48@... writes:
toggle quoted message
Show quoted text
- I think the answer here might be, "Yes - but..." Even at QRP power
levels, there can be varying amounts of interplay depending on where the tree
is touching the antenna along the voltage/current (impedance) profile of the
antenna. The affect can also be influenced with how wet or dry is the bark of
the tree. There was an article years ago about the US Military using living
trees as vertical antennas... not overwhelming results if I remember
correctly....
72,
Bruce - KK0S
--- In 4sqrp@..., Nick-WA5BDU
wrote:
>
> My antenna wires touch tree
limbs all the time. That shouldn't cause
> you any problems.
>
> 72,
>
> Nick, WA5BDU
>
> On 3/10/2013 7:20
PM, Dg Arnholt wrote:
> > kinda thought it was that. still the
kenwood shuting down is a
> > mystery..i didnt think it had swr shut
down.. hope the finals are ok.
> > oh yeah the antenna problem simple
:) wire touching a tree..gonna get
> > a rope and pull it off and in
the future get some help to move the
> > antenna leg. i would cut
the tree but this is rental property
> >
> > <http://groups.yahoo.com/group/4sqrp/post;_ylc=X3oDMTJwMGdzcWM5BF9TAzk3MzU5NzE0BGdycElkAzg3MDE2MjU2BGdycHNwSWQDMTcwNTA2MzEwOARtc2dJZAM2NDUEc2VjA2Z0cgRzbGsDcnBseQRzdGltZQMxMzYyOTYxMjIz?act=reply&messageNum=645>
>
>
> >
> >
> >
>
>
>
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Well, of course you'll get different
opinions from different people and this is just mine.� Some folks
think the antenna will set the tree on fire!
I've had both insulated and bare wires in contact with limbs,
leaves, etc.� Hard to do otherwise on my lot if you want an
antenna of any length.� Sometimes the limbs or trunk will even
grow around the wire.� I guess it's possible there's some signal
loss, but I don't think it's significant.
On VHF and FM broadcast, there's no doubt that summer foliage
degrades reception in fringe areas.�� But being fringe probably
means the signal is passing through *lots* of vegetation on the
way.� I haven't seen any authoritative info to say that this is an
issue at HF.
73-
Nick, WA5BDU
On 3/11/2013 9:42 PM, Todd F. Carney / K7TFC wrote:
toggle quoted message
Show quoted text
�
On Mon, Mar 11, 2013 at 6:53 PM, Nick-WA5BDU�<nick-wa5bdu@...>�wrote:
My antenna wires touch tree
limbs all the time.� That shouldn't cause you any
problems.
Does it make a difference if the wire is insulated or
bare when it touches trees?
�
73,
Todd
------------------------------------------------------------------------------------
K7TFC / Medford, Oregon, USA / CN82ni / UTC-8
------------------------------------------------------------------------------------
QRP (CW & SSB) / EmComm /
SOTA / Homebrew / Design
72,
Nick, WA5BDU
On 3/10/2013 7:20 PM, Dg Arnholt wrote:
�
kinda thought it was that. still the
kenwood shuting down is a mystery..i
didnt think it had swr shut down.. hope
the finals are ok.�
oh yeah the antenna problem simple :)
wire touching a tree..gonna get a rope
and pull it off and in the future get
some help to move the antenna leg. i
would cut the tree but this is rental
property
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Cliff Fox (KU4GW)
I saw 2 guys do that at ARRL Field Day one year and bring up the local 2 meter repeater for a short QSO off of a small tree. Pretty wild!
73, Cliff - KU4GW
toggle quoted message
Show quoted text
--- In 4sqrp@..., w2bpi1@... wrote:
One of the ham mags had a article about using a tree as a vertical. Don't
remember the issue or what the conclusion was. Must not have been good or
guys would be using it for portable work! 72 Geo/W2BPI
In a message dated 3/12/2013 5:47:14 A.M. Eastern Daylight Time,
bbarley48@... writes:
- I think the answer here might be, "Yes - but..." Even at QRP power
levels, there can be varying amounts of interplay depending on where the tree is
touching the antenna along the voltage/current (impedance) profile of the
antenna. The affect can also be influenced with how wet or dry is the bark
of the tree. There was an article years ago about the US Military using
living trees as vertical antennas... not overwhelming results if I remember
correctly....
72,
Bruce - KK0S
--- In _4sqrp@... (mailto:4sqrp@...) , Nick-WA5BDU
<nick-wa5bdu@> wrote:
My antenna wires touch tree limbs all the time. That shouldn't cause
you any problems.
72,
Nick, WA5BDU
On 3/10/2013 7:20 PM, Dg Arnholt wrote:
kinda thought it was that. still the kenwood shuting down is a
mystery..i didnt think it had swr shut down.. hope the finals are ok.
oh yeah the antenna problem simple :) wire touching a tree..gonna get
a rope and pull it off and in the future get some help to move the
antenna leg. i would cut the tree but this is rental property
<_http://groups.yahoo.com/group/4sqrp/post;_ylc=X3oDMTJwMGdzcWM5BF9TAzk3MzU5NzE0BGdycElkAzg3MDE2MjU2BGdycHNwSWQDMTcwNTA2MzEwOARtc2dJZAM2NDUEc2VjA2Z0
cgRzbGsDcnBseQRzdGltZQMxMzYyOTYxMjIz?act=reply&messageNum=645_
(http://groups.yahoo.com/group/4sqrp/post;_ylc=X3oDMTJwMGdzcWM5BF9TAzk3MzU5NzE0BGdycElkAz
g3MDE2MjU2BGdycHNwSWQDMTcwNTA2MzEwOARtc2dJZAM2NDUEc2VjA2Z0cgRzbGsDcnBseQRzdG
ltZQMxMzYyOTYxMjIz?act=reply&messageNum=645) >
>
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