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RSP-10 “Long Talk”

Description of the radar set, tactical-technical characteristics

Figure 1: ASR antennas of the RSP-10 “Long Talk” DRL at the airfield in Termez (Uzbekistan)

Figure 1: ASR antennas of the RSP-10 “Long Talk” DRL at the airfield in Termez (Uzbekistan)

Specifications ASR
frequency: 1250 … 1350 MHz (D-band)
pulse repetition frequency (PRF): 550, 800 und 1075 Hz
pulsewidth (τ): 1 oder 2 µs
peak power: 230 kW
instrumented range: 45, 90 und 150 km
range resolution: 120 m
accuracy:
beamwidth:
Specifications PAR
frequency: 9200 und 9400 MHz (I-band)
pulse repetition frequency (PRF): 2400 und 3000 Hz
pulsewidth (τ): 0,4 µs
peak power: 70 kW
instrumented range: 25 km
range resolution: 80 m
accuracy: 20 m
accuracy β, ε: 0,03°
slewing angle: ±15°

RSP-10 “Long Talk”

The RSP-10 ATC radar system (abbreviation of radiolokatsionnaya sistema posadki; Cyrillic: радиолокационная система посадки, РСП-10; NATO designation: “Long Talk” for the surveillance radar) is used for ground-controlled approaches to airfields. The DRL surveillance radar has an integrated secondary radar 1L22 which shares the antenna of the primary radar. The secondary radar was downward compatible with the Kremnij system. The vertical beacon next to the parabolic reflector is the omnidirectional antenna for sidelobe suppression. The antennas shown in Fig. 1 are only part of the air surveillance radar (ASR).

The system also includes a precision approach radar with two separate (course and glide path channels) parabolic antennas, each with a fan beam pattern in the upper I-band.

Many of these old radars are operational today due to the robust design of the antennas and the turntables. The electronics were upgraded to modern components and computer technology by several companies independently of each other, which influenced the technical data achieved. The technical data listed in the table are based on such a modernization. The frequency was changed from formerly 830 … 882 MHz to an internationally used range of 1250 to 1350 MHz and can be changed in 125 steps of 0.8 MHz each.

Picture gallery of the RSP-10

Figure 2: RSP-10 MN1
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