Quick question
Smokey
I just hung about 200 feet of wire in a straight line .
Would there be any benifit to doubling back?
I ran out of property space..
Thanks,
The Other Smokey
Burr
Make a "L" around a corner. This will help a lot
--
Burr
I voted right, I voted Republican.
Long Live the Republican Party
"Smokey" <smoke...@webtv.net> wrote in message
news:1110144172.3...@z14g2000cwz.googlegroups.com...
Smokey
Got it, Burr!
Thank You!
I'll go run some more wire before it gets dark outside
I can go left with it maybe 150 feet or so
Smokey
Telamon
"Smokey" <smoke...@webtv.net> wrote:
> I just hung about 200 feet of wire in a straight line .
>
> Would there be any benifit to doubling back?
>
> I ran out of property space..
That depends. If you double it back next to the length of wire already
run then it will not do much of anything. However, you could make a loop
out of it. As an example if you already have a 200 foot run to the back
of the yard you could then continue it across the back of the yard and
then back to the house.
You would have created a triangular loop with three sides of more than
400 feet. That is a good size loop. The ends of the loop would be
connected to the inner and outer coax conductors. Which end loop is
connect to the inner conductor probably does not matter except for the
local noise it will pick up.
--
Telamon
Ventura, California
Burr
Burr
"Smokey" <smoke...@webtv.net> wrote in message
news:1110144874.5...@f14g2000cwb.googlegroups.com...
Burr
I only have one jack and I run a long wire and if I run a loop I would
still only use one end and be sure to slope it so the sigs don't hit at the
say time.
Burr
"Telamon" <telamon_s...@pacbell.net.is.invalid> wrote in message
news:telamon_spamshield-3...@newssvr14-ext.news.prodigy.com...
Telamon
there will be no preference as to which way the loop is connected.
In article <W3LWd.41917$uc.5522@trnddc01>, "Burr" <pi...@verizon.net>
wrote:
--
Telamon
Ventura, California
Burr
Burr
"Telamon" <telamon_s...@pacbell.net.is.invalid> wrote in message
news:telamon_spamshield-5...@newssvr13-ext.news.prodigy.com...
Telamon
that's the right thing to do but not for a balance antenna.
In article <feLWd.41921$uc.37216@trnddc01>, "Burr" <pi...@verizon.net>
wrote:
--
Telamon
Ventura, California
Burr
I run naked wire, copper then splice it to the coax through the wall and
around the wires in the house to keep the EMF off the antenna. The ground
bleeds off any EMF that hits the lead.
Burr
"Burr" <pi...@verizon.net> wrote in message
news:feLWd.41921$uc.37216@trnddc01...
Telamon
trailer and you ground the coax shield to the trailer (and other ground
wires) at the point where the wire comes through the trailer wall. This
sounds like a workable random wire antenna based on the fact that the
trailer has metal over most of its surface area.
In article <SiLWd.41922$uc.24102@trnddc01>, "Burr" <pi...@verizon.net>
wrote:
--
Telamon
Ventura, California
Burr
I have a house in Ridgecrest, I run a longwire around the eves and into
the house. I have an earth ground where I ground everything. I use battery
power to run all my radios.
Down south where I keep my travel trailer where I say a few days a week
I use a Sony AN-1 and a Dipole on my scanner.
When I take my motor home out I use a Sony-AN1 or a Yo-Yo and sometimes
I use the double I got from Bill years ago. I also use "ears" for my CB so I
can get road reports.
When I camp in my tent I use a Single Yo-Yo or the built in antenna.
Burr
PS: Sorry Bill didn't say good bye to you!!!!
Telamon
PPS: I'm not. Good riddance.
In article <7yMWd.41929$uc.723@trnddc01>, "Burr" <pi...@verizon.net>
wrote:
--
Telamon
Ventura, California
RHF
.
Q # 1 - Can you first tell us 'what' Radio/Receiver
that you are using this 200 Foot Wire Antenna with ?
.
Q # 2 - Are you using a good earthen Ground with
this 200 Foot Wire Antenna ?
[ Ground Rod and Wire ]
.
Q # 3 - What type of Feed-in-Line are you using
with this 200 Foot Wire Antenna ?
[ ] Plain Insulated Wire
[ ] Twin Lead
[ ] Coax Cable [ ] 50 Ohm [ ] 75 Ohm
.
Q # 4 - Are you using a Matching Transformer between
the Wire Antenna Element and the Feed-in-Line ?
.
.
"PORTABLE" AM/FM SHORTWAVE RADIOS :
If it is a 'portable' AM/FM Shortwave Radio; you may
find that 200 Feet is too much Antenna for the Radio
and less is better. Tip, if you are hearing local
AM & FM Radio Stations all over the Shortwave Bands :
Then trim the Wire down to 135 Feet and try again.
Followed by 90 Feet, 60 Feet and 40 Feet if needed.
.
Consider using the "Portable Wire Antenna" (PWA) with
your 'portable' AM/FM Shortwave Radio.
- by Tom Sevart [N2UHC]
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/message/1728
GoTo=> http://www.geocities.com/n2uhc/portablewire.html
.
"DESK TOP" SHORTWAVE RECEIVER :
If it is a "Desk Top" Shortwave Receiver; you may find
that 200 Feet Wire Antenna is just about right and no
more Wire is required.
.
.
DOUBLING-OVER {FOLDING} THE "RANDOM' WIRE ANTENNA ELEMENT.
NOTE - Since your 200 Foot Wire Antenna is Rigged to
fill the Available Space and NOT "Cut" for a Specific
Frequency : It is simply a "Random" Wire Antenna
.
SPACING (The Gap) BETWEEN THE TWO WIRES :
As far as Folding the Wire Back-On-Itself for a
return-leg of another 200 Feet; this can be done
provided that you create a good amount of
separation (Gap) between the Top Wire and the
Bottom Wire. Usually this "Gap" is a function
of the Heigth of the Top Wire.
* Top Wire Under 12 Feet High = Single Wire Only
* Top Wire About 15 Feet High = 12 Foot High Bottom Wire
* Top Wire About 20 Feet High = 16 Foot High Bottom Wire
* Top Wire About 25 Feet High = 20 Foot High Bottom Wire
* Top Wire About 30 Feet High = 24 Foot High Bottom Wire
* Top Wire About 35 Feet High = 28 Foot High Bottom Wire
* Top Wire About 40 Feet High = 32 Foot High Bottom Wire
.
MAKE THE TOP WIRE LONGER AND
MAKE THE BOTTOM WIRE SHORTER :
Figure that the Top Wire is 62% of the Total Length
of the Antenna and the Bottom Wire is 38%.
* Top Wire 35 Feet and the Bottom Wire 22 Feet + Gap
* Top Wire 50 Feet and the Bottom Wire 31 Feet + Gap
* Top Wire 65 Feet and the Bottom Wire 40 Feet + Gap
* Top Wire 80 Feet and the Bottom Wire 49 Feet + Gap
* Top Wire 95 Feet and the Bottom Wire 58 Feet + Gap
For Longer Length (Larger Size) Wire Antennas multiply
any of the above sets of numbers by two or three.
Or think of the relationship between the Two Wires as for
every 15 Feet of Top Wire there is 9 Feet of Bottom Wire;
plus the Gap.
.
.
- - - - - T H E - B E T T E R - I D E A - - - - -
THE LOW NOISE SHORTWAVE LISTENER'S (SWL) ANTENNA :
The Better Idea then to Extend the Length of the Antenna
may be to reverse the lay-out of the Antenna from Front
to Back and use a long Coax Cable Feed-in-Line.
* Run the RG6 "Quad" Coax Cable with a Side
Ground Wire along the ground or under the ground
directly 'under' the run of the Wire Antenna Element
to the Far-End of the Wire Antenna Element.
* Install an Eight Foot Ground Rod directly under the
Far-End Point of the Wire Antenna Element.
* Install a 9:1 Matching Transformer directly on the
Ground Rod.
* The Wire Antenna Element will go "UP" Vertically from
the Ground Rod and then "BACK" Horizontally toward the
House/Shack. [ Forming the Inverted "L" Antenna shape. ]
* Connect the Wire Antenna Element and Coax Cable
to the Matching Transformer.
* Connect the Near-End of the Coax Cable with an
Adapter to your Radio/Receiver.
.
RESULT - This is a Low Noise "Random" Wire Antenna
in the Shape of an Inverted "L" Antenna with the
Coax Cable running directly under the Wire Antenna
Element functioning as a Ground Radial. This is the
basic SWL Antenna that uses the "Low Noise Antenna"
'design concepts' that were {popularized} by John Doty.
.
Here are Three "Must" Links to Read -wrt- Low Noise SWL Antenna
* Low Noise Antenna Connection
http://www.anarc.org/naswa/badx/antennas/low-noise_antenna.html
* Longwire Impedance Matching. {Check-Out the Graphs}
http://www.anarc.org/naswa/badx/antennas/SWL_longwire.html
* Grounding is the KEY to Good Reception
http://www.anarc.org/naswa/badx/antennas/grounding.html
.
.
iane ~ RHF
.
.
All are WELCOME and "Invited to Join" the
Shortwave Listener (SWL) Antenna eGroup on YAHOO !
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
Some Say: On A Clear Day You Can See Forever.
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/message/502
.
I BELIEVE: On A Clear Night . . .
You Can Hear Forever and Beyond, The BEYOND !
With a Shortwave Listener SWL Antenna of your own making.
"If You Build It {SWL Antenna} You Will Hear Them !"
.
.