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Optibeam Antenna
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Optibeam - OB4-20OWA - 4 Element Monoband Yagi 20m - 20
OB4-20OWA
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More info
| Bands | 20 | |
| Gain (dBd) * | 6,30 | |
| Gain (dBi) ** | 13,60 | |
| F/B (dB) | 23 | |
| VSWR | ||
| 14,000 - 14,220 - 14,350 | 1,3 - 1,1 - 1,2 | |
| Elements (number) | 4 | |
| Max. Elementlength (m) | 10,98 | |
| Boomlength (m) | 7,50 | |
| Turning Radius (m) | 6,36 | |
| Feedlines (number) | 1 Coax 50 Ohm | |
| Weight (kg) | 37 | |
| Windload at 130 km/h | 720 N /0,90 m² / 9,17 feet² | |
| * = 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) |
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