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OB2-40 |
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2 element
Yagi 40m |
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High efficient 2 element monobander for the 40m band:
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The OptiBeam high Q
air coil reduces the length of the elements nearly lossfree down
to a little bit below convenient 15 meters |
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Due to the
especially developed „40m decoupling stubs“ interaction is
avoided to other Yagis in the frequency range of 14 to 30 MHZ |
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Bands |
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40 |
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Gain
(dbd)* |
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3,6 |
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Gain
(dbi)** |
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10,5 |
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F/B (db) |
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15 |
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VSWR
CW/Europa Setting: 7,00 - 7,04 - 7,10 |
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1,6
- 1,1 - 1,6 |
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VSWR
USA Setting: 7,15 - 7,20 -
7,30 |
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1,6 - 1,1 - 1,9 |
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Elements (number) |
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2 |
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Max. Elementlength (m) |
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15,00 |
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Boomlength (m) |
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5,60 |
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Turning Radius (m) |
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7,96 |
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Feedlines (number) |
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1 Coax 50 Ohm |
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Weight (kg) |
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28 |
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Windload at 130km/h |
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500 N / 0,62 m˛ / 6,8 feet˛ |
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Price
(EUR) *** |
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1.399,00 |
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=
average gain over dipol in free-space
/ for comparison: 2 el monobander 4
dbd, 3 el 5-6 dbd
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| ** = average gain at 20m above ground (= dbd + 2.15 db isotropic + about 5 db ground
reflection)
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| ***
=
outside EU minus 19% tax - subject to
change
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