The "Bill Board-A" radar provides general surveillance, with the antenna rotating every 6-12 seconds. The radar, which can detect up to 200 targets, provides target coverage of 0-55º in elevation and 10-250 km in range with an accuracy is 30-35 min of arc in azimuth and 250 m in range.
Users: USSR/Russia, Armenia, Belarus, Bulgaria, China, Czech Republic (retired 1993), East Germany (retired 1990), Greece, India, Iran, Kazakhstan, Slovakia, Syria, Ukraine, Vietnam