model

speed range

Actual reduction ratio

Transmitting ability

SB-120

1000-2200

one point eight one

zero point zero eight eight two

one point nine seven

two point two eight

two point five zero

three point zero four

SB-200

1000-2200

one point seven nine

zero point one four seven

two

two point two four

two point five two

zero point one two five

two point nine six

zero point one zero three

SB-300

1000-2200

one point eight three

zero point two three

two point zero four

two point four one

two point five two

three

three point two two

SB-450

1000-2200

one point seven eight

zero point three three one

two point zero four

two point two six

two point four one

two point four six

zero point three zero nine

three

zero point two five seven

SB-600

1000-2200

one point eight four

zero point four four

two point zero three

two point two five

two point four six

zero point four one four

three point zero five