436MHz-1515X-Yagi

Performance
Gain: 15.72dBi @ 436.500MHz
F/B: 35.71dB @ 436.500MHz
Peak Gain: 15.82dBi
Gain 10m above Ground: 21.68dBi
Peak F/B: 37.03dB
Power Rating: 3kw
SWR: Below 1.12.1 from 431.00MHz to 433.00MHz
Boom Length: 3.173m
Stacking Distance Vertically: 0.95-1.1m (best trade-off 1.027m)
Stacking Distance Horizontally: 0.95-1.175m (best trade-off 1.1m)
Following figures calculated at 436.500MHz
2 Stacked Vertically 10m up @ 1.027m spacing - Gain: 24.29dBi
2 Stacked Vertically 10m up @ 1.027m spacing - F/B: 38.47dBi
2 Stacked Horizontally 10m up @ 1.1m spacing - Gain: 24.40dBi
2 Stacked Horizontally 10m up @ 1.1m spacing - F/B: 36.37dB
4 Antennas 1.027m V x 1.1m H Gain: 21.09dBi, F/B: 44.44dB (free space)
Sky Temperature: 20.3 Kelvin @ 436.500MHz
G/T Figure: 8.02dB @ 436.500MHz