Boss BF-3 Owner's Manual page 11

Setting the RATE by Inputting the Tempo with the Pedal Switch
Relationship Between the Flanger and Gate Effects
* The gate effect switches on and off 32 times over the period of the flanger effect's rise and fall.
* If you want to have the gate working on eighth notes, press the pedal switch at the beginning of the fifth measure of the song you
want to have synchronized
Frequency
Flanger Rise Flanger Fall Flanger Rise Flanger Fall
High
GATE Effects
Low
RATE
16 Times 16 Times 16 Times 16 Times
GATE =
Flanger Effects Flanger Effects
Rise Fall
Input the tempo Input the tempo
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