Parameter

Before upgrade (S-125M1)

After upgrade (S-125-ML)

Channel capacity, target/missile

1/2

1/2

Maximum detection range (tactical fighter):

 

 

-          at 7 km altitude

39 km

46 km

-          at 0.35 km altitude

28 km

34 km

-          at 0.05 km altitude

23 km

28 km

Engagement range (tactical fighter):

 

 

-          at 7 km altitude

30.5 km

37 km

-          at 0.35 altitude

22.5 km

27 km

-          at 0.05 altitude

21 km

25 km

Maximum speed of engaged targets:

 

 

-          approaching

700 m/s

800 m/s

-          receding

300 m/s

300 m/s

Range of detection and stable tracking of targets with RCS of 0.1 m2:

 

 

-          Rdet

15 – 17 km

19 – 21 km

-          Rtr

9 – 12 km

11 – 15 km

Parameters of engagement envelope:

 

 

-          minimal engagement altitude

0.02 km

0.02 km

-          maximum engagement altitude

18 km

21 km

-          range of near boundary

3.5 km

3.5 km

-          maximum horizontal range to remote boundary

17 km

27 km

-          maximum slant range to remote boundary

25 km

34 km

-          maximum course parameter

16 km

24 km

Single-shot kill probability of a target (Pk):

 

 

-          tactical fighter

0.45 - 9

0.7 – 0.98

-          cruise missile

0.04 – 0.48

0.35 – 0.85

SAM guidance methods:

 

 

-          three point (TP)

yes

modified

-          half lead (HL)

yes

modified

-          optimal dynamic control (ODC)

-

yes

Target channel auto-tracking modes:

 

 

-          radar

yes

yes

-          TV-optical

-

yes

-          thermal optical

-

option

Protection from jamming:

 

 

-          clutter rejection by MTI

up to 30 dB

up to 40 dB

-          asynchronous interference rejection

-

yes

-          ECCM against deception repeaters

-

yes

-          ECCM against noise jamming (2700 W/MHZ with 100 km equivalent range)

-

yes

Time to acquire target

10 – 15 s

2.5 – 3 s

Interfacing with IFF

“Parol-4” system

option (type chosen by customer)

Simultaneously interfaced launchers

up to 4

up to 4

Power supply:

 

 

-          power consumption

More than 100 kW

Not more than 45 kW

-          connection to mains 3-phase, 380V, 50 Hz

-

yes

-          3-phase 220V 400Hz requirement

yes

-

Autonomous power supply:

 

 

-          complex power generator

yes

yes (with standby)

-          autonomous power generators at UNV, UNK and launchers

-

yes

-          UPS and UNK cabin (40 min of operation)

-           

yes

Automatic technical monitoring

-

yes

Number of maintenance operations

454

47

Deploy/stow time at site of operation:

 

 

-          Standard mode

2 h 10 min

35 min

-          Express mode

-

10 min

Number of cables used

103

24

Cross-country ability

 

not worse than prototype

MTBF

not less than 45 h

not less than 1500 h

Target acquisition from radars with digital output

-

Yes (up to 4)

Direct automated control from command post

-

yes

Built-in radios for data and voice transmission

-

option

Built-in GPS

-

yes

Recording of all operations

-

yes

Automatic recording of technical data

-

yes

Built-in planning and integrated training mode (on simulated targets against real ground and air situation)

-

yes