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Description of the radar set, tactical-technical characteristics

Figure 1: E-190

Figure 1: Scanner and indicator unit of E-190

frequency: 9 735 MHz
pulse repetition time (PRT):
pulse repetition frequency (PRF): 400 Hz
pulsewidth (τ): 2.2 µs
receiving time:
dead time:
peak power: 15 kW
average power:
instrumented range: 150 NM (≙ 280 km)
range resolution:
beamwidth: 3.7°
hits per scan:
antenna rotation:


E-190 is operating in the X-band airborne weather radar.

The scanner unit was a 2 axis scanner with line of sight stabilization. The reflector antenna had a standard size of 24 inches (≙ 61 cm). It scanned over the range ± 90° in azimuth at 40 scans (20 cycles) per minute.

The E-190 was introduced at the 1959 Farnborough Air Show and remained in service for over 50 years.