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BRadar & sensors
Measured figures
Scope body, ordered source axes length · Length
Single source276 mm[source]Scope body, ordered source axes length
Configuration
| Specification | 1PN51 | BEL Battle Field Surveillance Radar |
|---|---|---|
| Speed | — | 0.9 m/s to 90 km/h[source]Source text · numeric interpretation needs review |
| Power | — | 80 W[source] |
| National origin | Soviet Union[source] | — |
| Type | passive night scope[source] | — |
| Transport mass | 6.45 kg in total[source]Metal container with batteries, charger and accessories; not scope-only mass | — |
| Mounting |
Scope body, ordered source axes width · Width
Single source140 mm[source]Scope body, ordered source axes width
Scope body, ordered source axes height · Height
Single source210 mm[source]Scope body, ordered source axes height
Crawling Man
Single sourceGroup of people
Single sourceHeavy Vehicles
Single sourceLight Vehicles
Single sourceWalking Man
Single sourceCrawling Man : 700 m (0.43 mi) Walking Man : 3 km (1.9 mi) Group of people : 7 km (4.3 mi) Light Vehicles : 10 km (6.2 mi) Heavy Vehicles : 14 km (8.7 mi)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
attached onto a matching side rail[source]Weapon-mounted sight |
| — |
| Magnification | 3.46.[source] | — |
|---|
| Power supply | pack of 5 D-0,55S ( Russian : Д-0,55С ) rechargeable cells, providing up to 7 V[source] | — |
|---|
| Optical aperture | 80 mm aperture[source]Optical aperture, not body width | — |
|---|
| Country of origin | — | India[source] |
|---|
| Manufacturer | — | Bharat Electronics Limited[source] |
|---|
| Designer | — | Electronics and Radar Development Establishment ( DRDO )[source] |
|---|
| No. built | — | 1400+[source] |
|---|
| Frequency | — | J band[source] |
|---|
| Azimuth | — | 30-180°[source] |
|---|
| Elevation | — | -40 to +15°[source] |
|---|
| Precision | — | ±20 meters (66 ft)[source] |
|---|
| Other names | — | PJT-531[source] |
|---|
| Detection Range | — | Crawling man: 500 m Walking man: 2 km (1.2 mi) Group of people: 7 km (4.3 mi) Light vehicle: 10 km (6.2 mi) Heavy vehicle: 14 km (8.7 mi)[source] |
|---|
| Crawling man | — | 500 m[source] |
|---|
| Walking man | — | 2 km (1.2 mi)[source] |
|---|
| Group of people | — | 7 km (4.3 mi)[source] |
|---|
| Light vehicle | — | 10 km (6.2 mi)[source] |
|---|
| Heavy vehicle | — | 14 km (8.7 mi)[source] |
|---|
| Range accuracy | — | 20m rms[source] |
|---|
| Range resolution | — | 50 m[source] |
|---|
| Radar type | — | man portable 2D short-range battlefield and perimeter surveillance radar[source] |
|---|
| Reported operators | — |
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