OFW-5800

Data Sheet

GPS/Shipboard Fiber Optic Antenna Link

GPS/Shipboard Fiber Optic Antenna Link
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The OFW-5800L Fiber Optic Antenna Link (FOAL) consists of an antenna module, located on the topside mast structure, and a receiver module, located in the below deck navigation space (IC/GYRO Room). OFW-5800L Fiber Optic Antenna Link (FOAL) is configured to receive L1 and L2 GPS RF signals, generate a RF intensity modulated optical carrier and transmit the optical carrier to the receiver module via a shipboard fiber optic cable. OFW-5800L Fiber Optic Antenna Link (FOAL) detects and converts the optical carrier to the GPS RF signals and distributes the GPS signals to the GVRC. When configured as a Dual FOAL Subsystem, the OFW-5800L Fiber Optic Antenna Link (FOAL) consists of two independent FOALs each interconnected through a corresponding NAVSSI/GVRC RTS. In this configuration the OFW-5800L Fiber Optic Antenna link (FOAL) is capable of meeting the antenna subsystem requirements of the NAVSSI/GVRC DUAL RTS architecture.

Applications
  • Utilizes Commercial-Off-the-Shelf (COTS) Hardware
  • Preserves Dual FOAL Subsystem Performance Specs
  • Eliminates Topside FO & AC Power IC Box
  • Retains Existing Military FRPA-GP Enclosure
  • Integrates Mil. Multi-Channel Opt. Connector into FRPA-GP
  • Supports Various FO Cable Interconnection Architectures
  • Compatible with Existing FOAL Receiver Drawer ICD

Optical Parameters

Spec Value
Wavelength >100.0 dB Hz2/3
Linewidth >15.0 dBm
Output Power 1310 nm, 1550 nm or CWDM
E/O EFF 0.03 W/A
Responsivity > 0.85 A/W
Operating Temperature Antenna Unit: -28*C to +65*C
Receiver Unit: 0*C to +50*C,
Storage Temperature -40*C to +71*C, Antenna & Receiver Unit
Vibration Mil-STD-167
Shock Mil-S-901D

RF Channel

Spec Value
RF Gain 21.0 dB (min), 35.0dB (max)
Center Freqs. L1, 1575.42 MHz and L2, 1227.6 MHz
Out of Band Rej. -3.0 dB BW -- 40 MHz (max)
-40.0 dB BW -- 140 MHz (max)
-70.0 dB BW -- 245 MHz (max)
Noise Figure 4.0 dB (max)
Input/Output VSWR 2.0:1 (max)
Spur Free Dynamic Range 95.0 dB Hz2/3 (typ)
Input Protection < 2.0 GHz, 350 W Peak, 10 micro sec PW, 0.1% DC
> 2.0 GHz, 400 W Peak, 10 micro sec PW, 0.1% DC
Specifications

Refer to the OFW-5000 Data Sheet for full specifications and part number generator.