S-BAND over Fiber

Model: F-SBAND

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Description Features Drawings Models Specification Support

Description

F-SBAND 5 GHz RF S-Band over Fiber Transmitter and Receiver

The F-SBAND is used to transmit and receive uplink and downlink signals up to 5 GHz. This is useful for links between control rooms or NOCs. The F-SBAND system offers a high-performance alternative to conventional coaxial link systems, reducing attenuation and eliminating the need for a waveguide. The unit functions as a transparent link, transporting all satellite modulation formats over a single fiber. Typically, an S-Band fiber link consists of an optical transmitter that receives the RF signal and transmits it over singlemode fiber to an optical receiver, which converts the optical signal back to RF. The F-SBAND link is a cost-effective and high-performance solution for S-Band over fiber satellite links.

Features

- Useful Bandwidth up to 5 GHz
- S-Band over fiber transport for links up to 120 Km
- Highly Linear for Analog Transmission
- Low RIN, Narrow Linewidth DFB Laser
- Broadband LiNbO3 Modulator
- Linear PIN receiver with TIA
- Optional single-port design allows bidirectional transmission with 1 fiber
- Optional RF amplifier to enhance gain

IMPORTANT NOTE*** (It is very important to interface our unit with an SC/APC - Angle Polished Connector to avoid any light reflections.)

If your fiber is terminated with the SC, ST, FC/PC flat connector, you need to use an optical jumper from PC type to SC/APC for proper conversion.

Drawings

Model Selection

Model Number	Description
F-SBAND-Tx-10	S-BAND Singlemode Fiber Transmitter for 10km
F-SBAND-Rx-10	S-BAND Singlemode Fiber Reciever for 10km
F-SBAND-Tx-40	S-BAND Singlemode Fiber Transmitter for 40km
F-SBAND-Rx-40	S-BAND Singlemode Fiber Reciever for 40km
F-SBAND-Tx-80	S-BAND Singlemode Fiber Transmitter for 80km
F-SBAND-Rx-80	S-BAND Singlemode Fiber Reciever for 80km
F-SBAND-Tx-120	S-BAND Singlemode Fiber Transmitter for 120km
F-SBAND-Rx-120	S-BAND Singlemode Fiber Reciever for 120km

Specification

All Specifications Subject to Change Without Notice IMPORTANT NOTE (it is very important to interface our unit with SC/APC - Angle Polished Connector to avoid any light reflections.) If your fiber is terminated with the SC, ST, FC /PC flat connector, you need to use an optical jumper from PC type to SC/APC for proper conversion.
Frequency Range	1070 - 5000 MHz
Out of Band Rejection	>70 dB
Flatness	+/- 0.2 dB / 48 MHz +/- 0.7 dB / 500 MHz (typ.) +/- 1.0 dB / Full band (typ.)
Intermodulation	-50 dBc (max.), -55 dBc (typ.)
CNR	(36 MHz BW) >50 dBc
Input Signal
Low Gain Setting	-25 to -40 dBm
High Gain Setting	-10 to -40 dBm
Gain Stability @ Constant Temp	+/- 0.15 dB / 24 hours
OIP3 (from min to max gain)
Low Gain Setting	-15 to 0 dBm (typ.)
High Gain Setting	0 to +15 dBm (typ.)
Noise Figure @ max input gain
Low Gain Setting	<22 dB (typ.)
High Gain Setting	<9 dB (typ.)
Group Delay Variation	Peak to peak 0.4 ns (typ.)
Input/Output Impedance	50 Ohm
Input/Output VSWR	1.4:1
Maximum RF Input (with no damage)
High Gain Setting	-10 dBm
Low Gain Setting	+5 dBm
Gain Control Manual front panel	standard
Test Port Coupling	20 dB +/- 1.0

Documents

DataSheet