NR-900S
Operation Manual
9
5. DESIGN
MAIN UNIT
NR-900S
main unit (see also fig.3) represents a mono-block that
consists of antenna system and electronic unit: transmitter with two
receivers, control module and LED display - indication panel.
NR-900S antenna system consists of two directional antennas
(transmitting and receiving) with linear polarization attached to
reflector and are covered by a plastic dome. Main lobes of antennas
radiation pattern are oriented along their geometrical axis..
Meanwhile, this fact forces an Operator to rotate the antenna
module at least ±90
°
around its imaginary axis passing
perpendicularly to antenna front surface for assured possible target
investigation.
5
1
2
3
4
Fig. 3. NR-900S
ready for operation. 1-main unit, 2- control unit with
display, 3 -headphone, 4 – handle, 5 - socket
