RSC-125G Personnel Locator System


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Features & Benefits

  • C-SAR burst direction finding and secured burst data transmission to achieve:
    • Accurate localization of the downed crew
    • Two-way secure text messaging
    • First pass pickup
    • Low probability of interception and low probability of detection
    • Over-the-horizon operation using the relay function.
  • Tactical DF in the 30 to 399.975 MHz frequency range regardless of the type of signal (AM, FM, PM)
  • Civil search and rescue missions on 121.5 MHz, 243 MHz and COSPAS-SARSAT beacons permanent monitoring
  • Ability to detect COSPAS-SARSAT beacons (EPIRBs) and decode their message (LAT/LON/Country Code)
  • Anti-submarine warfare: Includes Sonobuoy frequency band (FM) coverage and optimized localization by dedicated algorithms (standard and advanced OTPI).
  • Compact/lightweight quality and flush mounted antenna: Designed to facilitate the DF-430 and RSC-125G integration on board any platform.
  • Can be interfaced through MIL-STD-1553B , A429 or RTU-125 (stand-alone configuration) controller




5185 FH ARW 35°C

Physical Specs


Width: 57.15 +/- 0.5mm

Height: 193.5 +/- 1mm

Length/Depth: 318.17 +/- 1mm

Weight: 4.3kg


Width: 146.05mm

Height: 95.25mm

Length/Depth: 214.15mm

Weight: 1.2kg


LPT-125G (597-2163-001)

Input Power:

28 Vdc/4.8 A max

RTU-125G (597-2317-001)

Input Power:

+18 to +32 Vdc

1 A at +18 Vdc



Operating Temperature: -55°C to +75°C

Storage Temperature: -55°C to +90°C

Altitude: up to 50,000ft

Humidity: up to 95%


Operating Temperature: -20°C to +70°C

Storage Temperature: -55°C to +85°C













Typical System

Main Components


TypePart #DescriptionShipset #
ANT Connector Kit222-3023-467Connectors


TypePart #DescriptionShipset #
LPT-125G597-2163-001Processor unit1


TypePart #DescriptionShipset #
RTU-125G597-2317-001Control box1
RTU Connector Kit222-3038-989Connectors

Part Numbers

LPT-125G Transceiver Processor Unit (MIL STD 1553 Version): 597-2259-301

LPT-125G Transceiver Processor Unit (ARINC-429 Version Compatible RTU-125 for Stand Alone Configuration): 597-2163-001

MT-125 Processor Mount: 597-2172-101

ANT-430 DF Antenna (White radome, DF-301E Footprint retrofit): 597-2147-001;
DF Antenna (Black radome): 597-2147-201

ANT Connector Kit: 222-3023-467  

RTU-125 (LPT-125G Control & Display Panel): 597-2317-001

RTU Connector Kit: 222-3038-989

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