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Optibeam Antenna
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Optibeam - OB4-40OWA - 40m 4el full sized OWA Yagi - 40
OB4-40OWA
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| Bands | 40 | |
| Gain (dBd)* | 6,3 | |
| Gain (dBi)** | 12,6 / 13,75 | |
| F/B (dB) | 21 | |
| SWR | ||
| 7,000 - 7,150 - 7,300 | 1,5 - 1,3 - 1,3 | |
| Elements (number) | 4 | |
| Max. Elementlength (m) | 22,30 | |
| Boomlength (m) | 15,00 | |
| Turning Radius (m) | 13,20 | |
| Feedlines (number) | 1 Coax 50 Ohm | |
| Weight (kg) | 185 | |
| Windload at 130 km/h | 3.120 N / 3,90 m² / 41,93 feet² | |
| * = average gain over dipol in free-space / for comparison: 2 el monobander 4 dBd, 3 el 5-6 dBd |
| ** = average gain at 21 / 42m above ground (= dBd + 2.15 dB isotropic + about 5 dB ground reflection) |
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