Electro-Voice FRi-2082, Manual

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FRi-122/64 Beamwidth vs. Frequency
FREQUENCY IN HERTZ
BEAMWIDTH IN DEGREES (6 dB)
360
300
200
20 50 30 100 200 500 1000 2000 5000 10,000 20,000
100
80
60
40
20
F R i
S P E A K E R
S Y S T E M S
18
Appendix D: Beamwidth Curve
FRi-122/64 Directivity Factor and Directivity Index
FREQUENCY IN HERTZ
DIRECTIVITY INDEX D dB
i
30
20
20 50 30 100 200 500 1000 2000 5000
10,000 20,000
10
0
FRi-152/64 Beamwidth vs. Frequency
FREQUENCY IN HERTZ
BEAMWIDTH IN DEGREES (6 dB)
360
300
200
20 50 30 100 200 500 1000 2000 5000
10,000 20,000
100
80
60
40
20
FRi-152/64 Directivity Factor and Directivity Index
FREQUENCY IN HERTZ
DIRECTIVITY INDEX D dB
i
30
20
20 50 30 100 200 500 1000 2000 5000 10,000 20,000
10
0