1L121-E
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| Country of origin |  Russia |
|---|---|
| Designer | Nizhny Novgorod Research Institute of Radio Engineering |
| Introduced | 2011 |
| Type | Mobile 3-D air-defense radar |
| Frequency | UHF |
| Range | 90 Kilometers |
| Azimuth | 20 degrees |
| Elevation | 60 Degrees |
The 1L121-E is a Russian mobile air defense radar. It was first shown in 2011 at the MAKS Air Show outside Moscow. It was developed by the Nizhny Novgorod Research Institute of Radio Engineering (NNIIRT).
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