SERIES PRODUCTION OF THE POST GATE RADAR

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP82T00709R000201120001-1
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 8
• Document Creation Date: December 28, 2016
• Document Release Date: April 20, 2010
• Sequence Number: 1
• Publication Date: August 1, 1982
• Content Type: REPORT

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SERIES PRODUCTION OF THE POST GATE RADAR (S)
INTRODUCTION
1. (S/WN) The series production of a Polish-designed probable low-altitude search radar,
designated POST GATE, has begun at Warszawa Radar Works T1 Poland (Figure
1). Thirteen POST GATE radars were seen in the test area and finished-vehicle holding yards of
the plant on imagery of Nineteen POST GATEs, the highest number ever observed,
were seen on 0 The significant numbers of POST GATE seen, in comparison with earlier
observations, indicate that the system may soon be deployed in large numbers. Deployment of
this radar would greatly enhance the ability of Polish air defenses to detect and to track low-
altitude targets.
DISCUSSION
The Radar System
2. (S/WN) The POST GATE radar system (Figure 2) appears to consist of a tower trailer, a
box-bodied operations van truck, a generator/support trailer, and an antenna trailer. The antenna
(Figure 3) is a parabolic mesh reflector A prominent feed
horn extends from the right side. The antenna is mounted at a fixed-elevation angle on a drive
unit which allows a 360-degree rotation.' The drive unit is atop a three-section telescopic steel
lattice tower which is mounted on the front end of an eight-wheel flatbed trailer. The operations
van truck is a nondescript, flat-roofed van body on a TATRA-148 truck. The dual-axle generator/
support trailer, approximately appeared to be canvas covered
and to have slightly chamfered edges. The dual-axle antenna trailer is approximatel
When the antenna is on the trailer, support bows and canvas are erected
over the trailer, effecting a chamfered-edge appearance.
3. (S/WN) When the radar system is in the deployed mode (Figure 2), four stabilization
outriggers are swung out from the corners of the tower trailer. The tower and antenna are then
erected. The operations van truck is usually parked at the end of the right front outrigger, with
the generator/support trailer nearby, and the antenna trailer is usually parked at the end of the
left front outrigger. When the system is in the travel mode (Figure 4), the tower is lowered to the
trailer bed, and the antenna is removed. The outriggers are swung back to the sides of the tower
trailer, which may then be canvas covered. The antenna trailer carries the antenna, and the
operations van usually tows the tower trailer. The prime movers for the other trailers have not
been identified.
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FIGURE 3. POST GATE RADAR ANTENNA AND
TOWER. DIA photograph, 6878 5055 82
(CONFIDENTIAL).
Imagery Analyst's Comments
4. (S) The POST GATE was developed at Warszawa Radar Works T1, where it was first
identified in 1974. The POST GATE antenna is similar to the HIGH GATE height-finder radar, also
developed and produced at this plant. There are two major visible differences between these
radars. First, the HIGH GATE antenna is positioned on a lattice tower mounted on the rear of a
TATRA-148 truck, while the POST GATE lattice tower is mounted on a flatbed trailer. Second, the
POST GATE lacks the nodding mechanism of the HIGH GATE. Signal differences and the lack of a
nodding capability support the hypothesis that the POST GATE is a dedicated horizon search
radar.'
5. Although deployment of the POST GATE could have begun as early as
1978, it has only been identified at a very small number of sites. The high count of 19 POST GATEs
at the Warsaw plant in July is extremely unusual for a Polish radar system. This count exceeds the
annual production total of any single type of Polish radar during the last six years.' Therefore,
deployments of the POST GATE to Polish early warning/ground control intercept sites should
increase in the near future.
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(S/WN) All applicable satellite imagery acquired from May through July 1982 was used in the prepara-
tion of this report.
Comments and queries regarding this report are welcome. T
Warsaw Pact Forces Division, Imagery Exploitation Group, NPIC,
-5-
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