ACROSS
1 Offset Quadrature Phase Shift Keying
3 Having to do with
sound
8 Test Point
9 Small representative graphics
10 Structural design engineer, abbr., pl.
11 Graphics file
type extension
13 Front edge of a wing, abbr.
14 Location
including multiple radios
18 Set of fundamental formulas
for electromagnetics, 2 words
21 An inband feature of Chebyshev
filters
22 PC follower
23 System for guiding aircraft,
abbr.
24 Transformer interwinding connection
26 Molecular
building blocks
29 Professor's student instructor, abbr.
30 Gear boxes for upping the output shaft speed, pl.
31 Network
device