OPERATING MANUAL
34
When listening to demodulated signals, it is recommended to use headphones. Sound volume
is adjustable with a variable resistor (12, Fig. 2).
Recommendations
Any response observed on the red bar (or on both red and blue bar simultaneously) should be
analysed in the audio mode with the use of a test sound source. If a response has been observed
on the blue bar, it is advisable to perform audio analysis with the frequency combination #1,
subjecting the target area to mechanical impact (tapping). While probing, it is advisable to change
gradually the distance between the antenna and target within 5–100 cm range.
Push
M
to switch from the AUDIO mode to SEARCH.
2.6. Program Updates
ST400 Cayman has a processor that operates in accordance with the program firmware that
is pre-installed by the manufacturer company. Over time the firmware gets refined and newer
versions get released, that can be installed through the USB port.
‘What is my firmware version?’
In order to find out what firmware version is currently installed on your ST400, set it to
SEARCH, then press and hold it for 3 seconds. The three INPUT LEVEL bars (4, 5 and
6, Fig. 4) will light up, with the number of lit LEDs indicating the current version in the format
‘R.B.W’ (red, blue, and white). For example, if 1 red, 2 blue, and 5 white LEDs are lit up, then
the current version is 1.2.5.
Press any button to exit this mode.
Firmware update procedure
The newest firmware version, with issues sorted out or features added, can be downloaded
from http://spymarket.com/ (‘ST 40
2
CAYMAN’ section) and installed through the USB port
with the installer enclosed with the update files.
In order to update the ST 40
2
Cayman firmware, do the following:
– turn off the device (if activated)
– using a thin object, open the USB socket cover on the antenna panel (9, Fig. 4)
– connect ST40
2
Cayman to the computer using a USB cable
– turn on the device
– when the POWER led (4, Fig. 4) lights up, within 5 seconds briefly press
; after 5
seconds the power-on LED will go dim to indicate that the device is now in the updating mode
– turn off the device
– follow instructions in the README file that comes with the update.
WARNING!
Once the updating process has started, ST 400 Cayman can only be switched
into operation again upon completion of the update installation.
