---

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.

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-5800 Data Sheet for full specifications.