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Sonar Transponder

Model / MPN: DK140 | NSN: 5845-01-544-2032
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An item designed to be deployed from a ship for testing the accuracy of shipboard or airborne sonar systems. When depolyed in the water it hangs from a flotation device (buoy) which is equipped with a radar reflector. When interrogared by a pulse transmitted from a shipboard or airborne sonar, the transponder replies with an acoustic signal. Simultaneous range and azimuth measurements made by precision fire control radar aboard the interrogating platform provide accurate references for comparison with measurements taken from the interrogating sonar system.

Product Details
NATO Stock Number
5845-01-544-2032
Sold in multiples of
1 EA
DEMIL
DEMIL/MLI
Frequency Rating
37.5 kilohertz
End Application
Hawk aircraft
Usage Design
Assits in underwater recovery of aircraft and their recorders
Unpackaged Unit Weight
4.900 ounces
DK140 Series Parts
Solicitations
Solicitation Description Qty UOM Close Date
SPE4A616TCT50 Transponder, Sonar 14 EA 08/10/2016
SPE4A617T4822 Transponder, Sonar 38 EA 11/16/2016
SPE4A617TH178 Transponder, Sonar 89 EA 02/21/2017
SPE4A617TN115 Transponder, Sonar 35 EA 03/29/2017
SPE4AN18T0073 Transponder, Sonar 1 EA 02/16/2018
SPE4AN18T0087 Transponder, Sonar 1 EA 02/27/2018
SPE4AN18T0112 Transponder, Sonar 1 EA 03/26/2018
SPE4A618Q1126 Transponder, Sonar 135 EA 05/18/2018
SPE4A618T46Y6 Transponder, Sonar 1 EA 07/19/2018
SPE4A618T46Y7 Transponder, Sonar 1 EA 07/19/2018
SPE4A618T73C2 Transponder, Sonar 126 EA 08/29/2018
SPE4A618T76V0 Transponder, Sonar 1 EA 09/05/2018
SPE4A620T9580 Transponder, Sonar 79 EA 12/03/2019
SPE4A620T315K Transponder, Sonar 64 EA 01/31/2020

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DK140 Cross Reference
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  • DK140
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