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larry July 31st 03 09:47 PM

I have an antenna transmission line problem
 
Greetings

Lets see where do I start. I have been licenced since I was 16, in 1964.
My ham startion was located in the basement. My first antenna, a random
wire, ran from my antenna coupler, an L network, along the basement ceiling
out a hole drill in the frame of a basement window, up to, and over, the
eavestrough and down the backyard to the cloths line pole. About 75 feet.
Worked great on 80, 40, 20 meters.

Since then a pine tree located this on the house side of the pole has grown
to all but block my route to that pole.

Lots of time has gone by plus interests, etc, and I am planning a return to
hf, perferably cw.

My ham station has now moved from the basement, same house, to my old
bedroom facing the back of the house. My bedroom in now at the front side
of the house.

The most direct route to the back yard is now via a window. The window has
a permanent screen on the outside, it can be removed for changing, repair
etc. On the inside is a weather designed up and down sliding glass window.

My question is: is it possible to design something to allow me to pass a
transmission line, of any type, through a screen window, without
significantly effecting the characteristics of the transmission line and
without effecting the integrity of the screen window?

Larry ve3fxq







'Doc August 1st 03 02:26 AM

Larry,
Right off hand I would say use a 'bulkhead' connector
through the screen. You might mount the connector on a
piece of plastic/metal/wood on each side of the screen to
keep from tearing it. Sort of a jelly sandwich with the
screen as the jelly (if that makes any sense). Hows that?
'Doc

Tarmo Tammaru August 1st 03 02:48 AM

Larry, When I once had the shack in a bedroon, I punched a hole into the
closet ceiling to get the cables up into the attic. Then out from the attic.

Tam/WB2TT
"larry" wrote in message
le.rogers.com...
Greetings

Lets see where do I start. I have been licenced since I was 16, in 1964.
My ham startion was located in the basement. My first antenna, a random
wire, ran from my antenna coupler, an L network, along the basement

ceiling
out a hole drill in the frame of a basement window, up to, and over, the
eavestrough and down the backyard to the cloths line pole. About 75 feet.
Worked great on 80, 40, 20 meters.

Since then a pine tree located this on the house side of the pole has

grown
to all but block my route to that pole.

Lots of time has gone by plus interests, etc, and I am planning a return

to
hf, perferably cw.

My ham station has now moved from the basement, same house, to my old
bedroom facing the back of the house. My bedroom in now at the front side
of the house.

The most direct route to the back yard is now via a window. The window

has
a permanent screen on the outside, it can be removed for changing, repair
etc. On the inside is a weather designed up and down sliding glass

window.

My question is: is it possible to design something to allow me to pass a
transmission line, of any type, through a screen window, without
significantly effecting the characteristics of the transmission line and
without effecting the integrity of the screen window?

Larry ve3fxq









Tom Coates August 1st 03 03:20 AM

I had the local hardware store replace the metal screen with nylon screening
in a similar color. Fiberglas screening would have been equally good. My
antenna is fifty feet of (almost invisible) No 30 wire, which fits easily
through the screen.

Tom, N3IJ

"larry" wrote in message
le.rogers.com...
Greetings

Lets see where do I start. I have been licenced since I was 16, in 1964.
My ham startion was located in the basement. My first antenna, a random
wire, ran from my antenna coupler, an L network, along the basement

ceiling
out a hole drill in the frame of a basement window, up to, and over, the
eavestrough and down the backyard to the cloths line pole. About 75 feet.
Worked great on 80, 40, 20 meters.

Since then a pine tree located this on the house side of the pole has

grown
to all but block my route to that pole.

Lots of time has gone by plus interests, etc, and I am planning a return

to
hf, perferably cw.

My ham station has now moved from the basement, same house, to my old
bedroom facing the back of the house. My bedroom in now at the front side
of the house.

The most direct route to the back yard is now via a window. The window

has
a permanent screen on the outside, it can be removed for changing, repair
etc. On the inside is a weather designed up and down sliding glass

window.

My question is: is it possible to design something to allow me to pass a
transmission line, of any type, through a screen window, without
significantly effecting the characteristics of the transmission line and
without effecting the integrity of the screen window?

Larry ve3fxq










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