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Optibeam Antenna
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Optibeam - OB5-15 - 5 Element Monoband Yagi 15m - 15
OB5-15
New product
As you know the Yagi as a symmetrical structure must always be fed using a balun at the feed point, otherwise the performance will be significantly lost.
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More info
| Bands | 15 | |
| Gain (dBd) * | 8.4 | |
| Gain (dBi) ** | 15.7 | |
| F/B (dB) | 27 | |
| VSWR | ||
| 21,000 - 21,280 - 21,450 | 1,1 - 1,0 - 1,3 | |
| Elements (number) | 5 | |
| Max. Elementlength (m) | 7.34 | |
| Boomlength (m) | 10.1 | |
| Turning Radius (m) | 6.35 | |
| Feedlines (number) | 1 Coax 50 Ohm | |
| Weight (kg) | 27 | |
| Windload at 130 km/h | 679 N / 0,85 m² / 9,11 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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