OPERATING MANUAL
28
ST 401 ‘CAYMAN’ NLJD
29
The optional modes, OPT1 and OPT2, are intended for customer-specific applications. These
modes are not available in the basic version of the product and are to be agreed upon prior to
delivery. Although there are a number of possible options, only two can be accommodated per
unit.
1.6. Structure
The
ST 401 ‘Cayman’ NLJD
consists of an antenna module and a handle connected by way
of a hinge joint. The general appearance of ST401 is shown in Fig. 2, the numbers standing for:
1 – antenna module
2 – handle
3 – hinge joint
4 – hinge locking screw
1.6.1. Antenna module
The antenna module comprises a receiver-transmitter unit, a control-display unit, and an
aerial, all of which are assembled on a single platform and incorporated in a single body.
Fig. 2
The antenna module is connected with the handle through a hinge joint that allows adjusting
the incline within the vertical plane, as shown in Fig. 3. Loosen the hinge screw (Fig.2: 4) to
change the incline, then tighten the screw again.
Fig. 3
On the surface of antenna, facing the operator, are an indicator panel, a socket for the control-
and-power cable, and a micro-USB port (Fig. 4). The numbers in Fig. 4 stand for the following:
Fig. 4
# in Fig. 4
description
colour
subscript on
indicator panel
1
power indicator
red
POWER
2 and 3
optional mode* indicators
yellow
OPT1, OPT2
4
16-segment gauge of threat-type response
levels
red
1
5
16-segment gauge of MOM-type response
levels
blue
2
6
16-segment gauge of reflection levels
white
3
7
5-segment indicator of selected receiver
sensitivity
yellow
SENS
8
5-segment indicator of frequency
combination in AUDIO mode
yellow
СН
9
audio-on indicator
yellow
AUDIO
10
automatic gain control indicator
yellow
AUTO
11
manual gain control indicator
yellow
MANUAL
12
socket for control-and-power cable
13
micro-USB port
* not included with the basic firmware version
The boresight directions of the receiving and transmitting antennas are shown in Fig. 5
