NR-900S
Operation Manual
19
NOTE:
The practical probing signal level and receivers sensitivity
are defined by the interference environment right on spot of the
operation. There might be certain outside signals on the receivers
adjustment frequencies and/or the presence of nonlinear reflectors,
that cannot be removed from the examination area.
-
Comparing the 2
nd
and 3
rd
harmonics levels make the conclusion
concerning the possible nature of the target revealed.
NOTE: If the 2
nd
harmonic level is higher than the 3
rd
one more than
by 10 dB (difference is more than 4 LEDs) - the target is likely to be
an electronic device.
On the contrary, if the 3
rd
harmonics level excesses 2
nd
one more than
by 10 dB, the signal source is likely to be an object with metal-to-metal
contacts
.
NOTE: If the target reply at the 2
nd
harmonic is about
25±5 dB (from 8 to 12 red LEDs shining at the scale)
- don’t move closer to the target and reduce the probing
signal output. Subsequent target investigation should be
done under low device output.
-
When the target location is determined switch off Detector and
follow the Standing Instruction handling with the revealed target.
8. PACKING
By the end of practical operation do the following:
−
Switch off the
Detector
.
−
Remove cells from the battery compartment.
−
Unplug headphones from the Main unit.
−
Check Detector’s components condition, wipe them with rag if
necessary.
−
Cover all sockets with corresponding rubber caps.
−
Put Detector’s components into the carry case and fasten it.
