SATO MB400i Operator's Manual page 74

Basic Specifications & Optional Accessories
MB400i/410i Radio Frequency characteristics
2.4FH1
7-8
Freq band
used
Modulation
system
Assumed
distance of
interference
Availability
of fre-
quency
change
2.4 GHz
Frequency Hopped -
Spread Spectrum system
10 mm max.
All area is used and exclu-
sion of the band for equip-
ment for mobile object
identification is
impossible