PRE OWNED JRC NAF-253SA JRC NAF-253SA MARINE ANTENA

PRODUCT OVERVIEW

The JRC NAF-253SA is a compact, high-performance Externally Mounted Equipment (EME) designed primarily for the JUE-95SA SSAS system. It functions as a digital satellite communication hub, handling secure data transmission for ship security alerts and Long-Range Identification and Tracking (LRIT).

As an omni-directional helical antenna, the NAF-253SA provides a hemispherical radiation pattern, ensuring that the vessel stays connected to the Inmarsat satellite network even during heavy pitching and rolling. Its integrated design often includes a built-in GPS receiver, allowing the system to transmit independent position reports during security incidents.

TECHNICAL SPECIFICATIONS

-- Model: JRC NAF-253SA

-- System Compatibility: JRC JUE-95SA (Mini-C / SSAS)

-- Antenna Type: Helical (Omni-directional)

-- Frequency Range (TX): 1626.5 MHz to 1646.5 MHz

-- Frequency Range (RX): 1537.0 MHz to 1544.2 MHz

-- Polarization: Right-Hand Circular (RHCP)

-- G/T Ratio: -23.7 dB/K minimum (at 5-degree elevation)

-- E.I.R.P.: 7 to 16 dBW

-- Operating Temperature: -35C to +55C

-- Waterproofing: IP56 (Weatherproof Radome)

-- Weight: 1.4 kg (Approx.)

-- Mounting: Standard 1-inch pipe mount

KEY FEATURES & APPLICATIONS

-- Dedicated SSAS Functionality: Specifically engineered to work with Ship Security Alert Systems, ensuring that discrete security alerts are transmitted reliably to shore-based authorities.

-- Integrated GPS: Features a built-in GPS antenna and receiver, providing autonomous position data that is essential for LRIT (Long-Range Identification and Tracking) compliance.

-- Maintenance-Free Helical Design: The lack of internal moving parts or tracking motors makes this antenna exceptionally durable and resistant to mechanical wear in the marine environment.

-- Mini-C Data Efficiency: Optimized for the Inmarsat Mini-C protocol, offering low-power consumption while maintaining high-priority data links for safety and security.

-- Rugged Radome: The UV-stabilized thermoplastic housing is designed to survive intense sunlight, salt-spray, and heavy icing conditions without signal degradation.

-- Single Cable Interfacing: Simplifies bridge-to-mast installation by carrying power, satellite signals, and GPS data over one high-quality coaxial cable.

TYPICAL CONDITION (USED/REFURBISHED)

Sourced from global commercial vessels at ship-recycling yards, our refurbished NAF-253SA units undergo a rigorous diagnostic check. This includes a satellite "Login" test to verify transmission/reception gain and a GPS cold-start test to ensure accurate positioning. We inspect the radome for any structural cracks and ensure the internal lithium battery (used for memory/positioning) is in good health.

COMPATIBLE BRAND MODELS:

JRC (JUE-95SA, JUE-95VM, JUE-85, JUE-87, NAF-253GM, NAF-742SA, NAF-741GM), Furuno (FELCOM 16, FELCOM 19, IC-116, IC-119), Thrane & Thrane / Sailor (TT-3027C, TT-3026M, Sailor 6120 SSAS), Cobham (Sailor 6110), Samyung (SN-100), Skanti (Scansat-701).

#JRC #NAF253SA #JUE95SA #SSAS #InmarsatMiniC #MarineAntenna #LRIT #ShipSecurity #MaritimeSafety #BhavnagarMarine #AlangShipSalvage #UsedMarineElectronics #RefurbishedMarine #SatelliteCommunication #JRCMarine #SailorMarine #Furuno #MaritimeSecurity