[kirche]

RLS <Pegmatite> adopted in 1941-1942 as RUS-2s (Radio Ulavlivatel' Samoletov 2 statsionarny), or P-2M, or "single-antenna RUS-2"
It's single-antenna version of the RUS-2 with a combined receiver-transmitter.
stationary option RUS-2s - 01.1942 (transported in packing crates by any transport). In April 1942 - P-2M station (was modernized). At the end of 1941, the automobile version was also adopted (1 car with a transmitter-receiver and 1 car with power supply).
At the end of 1943, several options were tested and adopted with additional equipment for determining the altitude of the target.