SOV - PSNR-1 (1RL125)

The PSNR-1 radar is used to detect and track fixed and moving targets in the battlespace, or as a security device to detect targets in predetermined perimeters. It allows manual detection and determination of the distance, coordinates (azimuth) and even the possible speed of these targets.


Basic TTD:
carrier frequency ... 9GHz
radiated power ... 120mW
pulse length ... 220ns
repetition rate ... 4kHz
maximum indicated measured distance ... 10km (counter will drop to 9980m)
minimum indicated measured distance ... 33m (counter from 80m)
maximum speed of moving target ... 120km/hr
depth of search sector ... 500/1000m
weight of the whole set ... 58kg
operator ... 3 persons
power supply ... 24V battery


Kit composition:
Indicator (block E02)
Transmitter (block E01)
Battery pack (3pcs)
Tripod with case
ZIP kit
Transport cases (3pcs)
Corner reflector
Extension cable
Operating temperature range: -40°C to +50°C, at max humidity 98%,


The development of this device began in 1963 and was completed in 1965, when it was included in the armament of the Soviet Army under the designation "Переносная станция наземной разведки ПСНР-1 "Podъём", later it was assigned the index 1RL125.
It entered the Czechoslovak Army in 1973-74 and remained there until it was replaced by the PSNR-5-a significantly more sophisticated, more reliable and less demanding to operate.


The crew consisted of 3 persons: a commander, an operator and a radio operator.
The operation itself was quite complicated, because the azimuth and elevation of the antenna had to be changed manually by rotating the antenna.At the same time, the azimuth could be read only on the tripod scale, but the distance only on the indicator. The depth of the surveyed section was variable in two ranges 500/1000m and two speeds (slow/fast). The scanning of the sections was automatic, but the tracked depth section itself (500/1000 m) could be, and in fact had to be, moved throughout the measured section (80 m-9 km) only manually, simultaneously with slow manual rotation of the antenna block (transmitter).Only when the target was detected could its distance be measured manually on the marker. If we add to that the constant plotting on the map, the calculation of the target's speed, plus the real-time reports to the command, the three-man crew had a lot to do... By comparison, its immediate successor device PSNR-5 already performed the given measuring activity completely by itself, and its depth of the tracked section was 5 km, except for finding the exact distance - this was also measured manually.


The kit also included a sighting telescope - for targeting nearby targets and calibrating the transmitter, as well as one so-called corner reflector, also used for calibration. A planchette is placed in the antenna pad during transport, for precise positioning and plotting of targets on the inserted map. It must have been a rather advanced and expensive device for that time, the quality of workmanship is excellent, only four tubes are used in the device itself (except for the screen and magnetrons), all other circuits are already based on transistors and semiconductors, of course, precious metals were not spared either.
The set could be transported and dropped off using a GK-30 or a PDMM47 cargo container.


The manufacturer was Arsenal plant, the chief designer Ja. Ch. Chernobrod (Ya. Ch. Chernobrod).

Source.
Photo: own

P.S.:If anyone knows how many of these devices are preserved in collections in the Slovak Republic and the Czech Republic and can provide me with this info, I would be happy to do so.