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Optibeam Antenna
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Optibeam - OB1-4030 - Rotary Dipol 40/30m - 40 /30
OB1-4030
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| Bands | 40 /30 | |
| Gain (dBd) * | 0,0 / 0,0 | |
| Gain (dBi) ** | 7,00 / 8,10 | |
| VSWR | ||
| 7,00 - 7,09 - 7,25 | 1,4 - 1,2 - 2,0 | |
| -10.125 | 1,2 | |
| Max. Elementlength (m) | 14,7 | |
| Turning Radius (m) | 7,35 | |
| Feedlines (number) | 1 Coax 50 Ohm | |
| Weight (kg) | 14 | |
| Windload at 130 km/h | 363 N / 0,45 m² / 4,9 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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