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This
page will show you, how to create your own
Delta Loop antenna for "six" metres
(verticel polarised)
hb9zcw@sys-tec.ch
______________________________________________________
The base information are from the book
Karl Rothammel Y21BK ISBN 3-440-05853-0
and the Old Man issue 07/08. August 1998 from
Pierre, HB9QQ
parts list
(this material you need to construct your Delta Loop)
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Wire
|
5.98
metres
|
1
mm diametre
|
|
Isolator
|
tree
|
|
|
Mittelteil
|
see
picture below
|
|
|
75
Ohm cable wit female
|
||
|
Kabelbriden
|
tree
|
black,
uv-beständig
|
wirecalculation
Kabellänge = Lichtgeschwindigkeit:by the Frequency=
300000:50.150= 5.98 metres wire
Diameter 1mm2
|
|
isolators
ich habe eine
Stange Kunststoff in einem Baumarkt gekauft
Masse 20mm*5mm*1000mm.
Photo Rest der Stange
It is important,
that the isolator is nichtleitend, besonders wenn das Wetter nass ist.
First I tried with strong leather, but this is the was the wrong material.
|
Center
This Teil is a plasticpart selfmade.
a 7 cm long plastic, countersank, so dass das RG 59 und die beiden Enden
des Drahtes eingezogen und miteinander verbunden werden können.
This Center is mit besonderer Sorgfalt zu behandeln.
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|
|
|
|
|
|
|
|
a
|
0.31
Lamda
|
1.8538
m
|
|
b
|
0.25
Lamda
|
1.4950
m
|
|
c
|
0.38
Lamda
|
2.2724
m
|
|
x
|
0.06
Lamda
|
0.3588
m
|
|
total
|
1
|
5.98
m
|
|
d
/ RG 59
|
5.98
/ 0.66
|
0.987
m
|
|
|