ST 40
2
‘CAYMAN’ NLJD
33
Table 3
indication on TUNING bar
freq. combination #
0
1
2
3
4
5
gauge bar # in SEARCH mode
1
2
1
1
1
1
Use buttons and to change probing frequency combinations (1 and 3, Fig.7).
Table 4 shows typical results of analysing targets with nonlinear properties.
Table 4
Type of probed
target
Optimum frequency
combination
Sounds when
subjected to
mechanical impact
or test sound
Sounds in the
absence of
mechanical impact
or test sound
MOM-structure
1
crackling, creaking
none
active electronic
devices (unencoded
transmission channel)
0 (2–5)
audible response to
tapping or test sound
sounds of the
environment
active electronic
devices (encoded
transmission channel)
0 (2–5)
peculiar signals
caused by the
operation of
the device and
independent of
sounds in the
environment
peculiar signals
caused by the
operation of
the device and
independent of
sounds in the
environment
inactive electronic
devices
0 (2–5)
none
none
active electro-
mechanic or
mechanic appliances
0-5
crackling, creaking
peculiar signals
caused by the
operation of
the device and
independent of
sounds in the
environment
