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Optibeam Antenna
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Optibeam - OB9-2WARC -9 Element Duoband Yagi 17-12m -17 / 12
OB9-2WARC
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| Bands | 17 / 12 | |
| Gain (dBd)* | 7,6 / 8,4 | |
| Gain (dBi)** | 15,1 / 16,1 | |
| F/B (dB) | 27 / 22 | |
| SWR: | ||
| 18,07 - 18,13 - 18,17 | 1,2 - 1,1 - 1,2 | |
| 24,89 - 24,94 - 24,99 | 1,2 - 1,1 - 1,2 | |
| Elements (number) | 9 | |
| Active Elements | 4 / 5 | |
| Max. Elementlength (m) | 8,68 | |
| Boomlength (m) | 9,80 | |
| Turning Radius (m) | 6,50 | |
| Feedlines (number) | 1 Coax 50 Ohm | |
| Weight (kg) | 45 | |
| Windload at 130 km/h | 920 N / 1,15 m2 / 12,36 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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