OB11-3 11 Element, 3 Band

Bands 20 / 15 / 10
Gain (dBd) * 5,1 / 5,6 / 6,7
Gain (dBi) ** 12,5 / 13,2 / 14,5
F/B (dB) 22 / 22 / 25
VSWR
14,00 - 14,19 - 14,35 1,2 - 1,0 - 1,3
21,00 - 21,25 - 21,45 1,4 - 1,0 - 1,5
28,00 - 28,50 - 29,00 1,4 - 1,0 - 1,5

Elements (number) 11
Active Elements 3 / 3 / 5
Max. Elementlength (m) 10.96
Boomlength (m) 6.1
Turning Radius (m) 6.25
Feedlines (number) 1 Coax 50 Ohm
Weight (kg) 32
Windload at 130 km/h 669 N / 0,84 m2 / 9,0 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)