4 big monobanders on 1 boom, no traps !!! |
|
OptiBeam
OB17-4 | 17 Element, 4 Band | |
Bands | 40 / 20 / 15 / 10 | |
Gain (dBd) * | 4,8 / 7,3 / 7,8 / 8,0 | |
Gain (dBi) ** | 11,7 / 14,9 / 15,5 / 15,8 | |
F/B (dB) | 25 / 20 / 22 / 24 | |
VSWR | ||
40 m allgemeines setting: | ||
7,00 – 7,05 – 7,15 | 1,7 – 1,1 – 1,9 | |
40 m USA phone setting: | ||
7,15 – 7,20 – 7,30 | 1,7 – 1,1 – 1,8 | |
14,00 – 14,18 – 14,35 | 1,4 – 1,1 – 1,3 | |
21,00 – 21,27 – 21,45 | 1,5 – 1,1 – 1,5 | |
28,00 – 28,59 – 29,00 | 1,5 – 1,1 – 1,4 | |
Elements (number) | 17 | |
Active Elements | 3 / 4 / 4 / 6 | |
Max. Elementlength (m) | 14.6 | |
Boomlength (m) | 11.9 | |
Turning Radius (m) | 9.15 | |
Feedlines (number) | 1 Coax 50 Ohm | |
Weight (kg) | 100 | |
Windload at 130 km/h | 1.989 N / 2,48 m² / 26,8 feet² | |
Price *** | 3.869,00 EUR |
* = average gain over dipol in free-space / for comparison: 2 el monobander 4 dbd, 3 el 5-6 dbd | |
** = average gain at 20m above ground (= dbd + 2.15 db isotropic + about 5 db ground reflection) | |
*** = outside EU minus 19% tax – subject to change |
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