BMP-1KSh (Ob'yekt 774, 9S743) (KSh stands for komandno-shtabnaya – command and staff) – Command and staff variant of the BMP-1 for motorized rifle and tank regiments with a TNA-3 gyroscopic navigation device, two R-111, one R-123MT and one R-130M additional radios as well as telegraph and telephone equipment. The armament was replaced by the AMU "Hawkeye" 10 m long telescopic mast and the turret was fixed. It also had a tubular case for the AMU "Hawkeye" antenna parts on the right rear of the vehicle, an AB-1P/30 1 kW box-shaped portable petrol-electric generator set at the center of the rear part of the hull's roof instead of two roof hatches (two roof hatches immediately behind the turret remain) and four elevatable whip antennas at the rear (two on the left and two on the right).
en.wikipedia.org/wiki/BMP-1_variants
commons.wikimedia.org/wiki/File:BMP-1KSh_in_TLT_-_4553.JPG
