KRTP-91 Tamara (Trash Can) Czechoslovakian Electronic Support Measures System
KRTP-91 Tamara
Electronic Warfare System
Other
Basic Information
Name
KRTP-91 Tamara (Trash Can) Czechoslovakian Electronic Support Measures System
Designation
KRTP-91 Tamara
Alternate Designation
KRTP-91 Tamara; NATO: Trash Can
Equipment Type
Electronic Warfare System
Manufacturer
—
Date of Introduction
1991
Description
Tamara was the third generation Czechoslovak electronic support measures (ESM) system that used measurements of time difference of arrival (TDOA) of pulses at three or four sites to accurately detect and track airborne emitters by multilateration. Tamara's designations were KRTP-86 and KRTP-91 and it carried the NATO reporting name of Trash Can. The designation was derived from the Czech phrase "Komplet Radiotechnického Průzkumu" meaning "Radio Technical Reconnaissance Set". It was claimed to be the only one in the world able to detect military "invisible aircraft".
Ground Specifications
Mobility Type
Wheeled (8x8)
Active Protection
None
Range
450.0 km
System
Alternative Designation
KRTP-91 Tamara; NATO: Trash Can
Type
Czechoslovakian Electronic Support Measures System
Crew
INA
Chassis
Tatra T815
Appearance
Unlike its predecessors, Tamara was a mobile system deployed on eight large Tatra T815 trucks and mounted upon a powerful 25 m hydraulic mast. Setup was completely automated and claimed to be of the order of twenty minutes from the moment of arrival at a site.
Unit
A single system is carried by eight Tatra 815 8x8 trucks (Equivalent to the MAZ-543), comprising three RS-AJ/M receiver systems with telescoping masts, and a mix of RS-KB hardware containers, RS-KM signal processing equipment container and a ZZP-5 command van.
Band
INA
Band Coverage
Cited band coverage is 820 MHz to 18 GHz.
Mode of Operation
The deployed system typically comprises a central site (containing the signal processing equipment and an ESM receiver) and two or three side sites containing only an ESM receiver. The side sites relay the signals received to the central site over a point-to-point microwave link. The central site uses the known propagation delay from the side sites to estimate the TDOA of the pulses at each site. The TDOA of a pulse between one side site and the central site locates the target on a hyperboloid. A second side site provides a second TDOA and hence a second hyperboloid. The intersection of these two hyperboloids places the target on a line, providing a 2D measurement of the target's location (no height). A third site provides a third hyperboloid and hence a measurement of height.
Tamara could automatically track 23 radar and 48 IFF targets simultaneously. Its frequency band is 0.8-18 GHz. The nominal range of the system is 450 km, and it is generally limited by the radio horizon. It provides surveillance over a sector of approximately 100 degrees, with the later KRTP-91 system offering a wider 120 degree sector of surveillance.
Displacement Time
INA
Emplacement Time
INA
Deployment Distance
In a typical deployment the receivers are stationed at distances of 5 to 20 NMI.
Cited Maximum Range
cited range limit being 240 NMI and limited primarily by the curvature of the earth.
Tracked Targets
Russian sources claim that 72 targets can be tracked within a 100° angular sector, these including emitting JTIDS/Link-16 terminals. In 1991 the baseline KRTP-86 was superceded in production by improved the KRTP-91 Tamara-M.
Dimensions
Length
INA
Width
INA
Height
INA
Weight, Combat
INA
Automotive
Note
Tamara was a mobile system deployed on eight large Tatra T815 trucks and mounted upon a powerful 25 m hydraulic mast.
Protection
Armor
INA
Applique Armor
No
Active Protection System
No
NBC Protection
INA
Smoke Equipment
INA
Image Sources
Details
Country of Origin
Czech Republic
Category
Land Based Electronic Warfare (EW) Systems
Land > Land Based Electronic Warfare (EW) Systems
Filter Label
K
Classification
Domain
Ground
Equipment Status
Active
Dimensions
Length
—
Width
—
Height
25 m
Weight
—
Operators (1)
Czech Republic
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