Introduction

In CATV and satellite communication systems, reliably transmitting RF signals over long distances has always been a core challenge in network construction. Traditional coaxial cable transmission suffers from severe signal attenuation and poor electromagnetic interference (EMI) immunity over extended runs, making it difficult to meet the stringent signal integrity requirements of modern communication networks.

GOODMIND ELECTRONICS (SHENZHEN) LTD, under its GME brand, proudly presents the GST6011 RF Optical Transmitter and the GSR6011 CATV Optical Receiver - a perfectly matched pair designed to solve this challenge with precision, efficiency, and consistent performance.

Product Overview

The GST6011 and GSR6011 form a complementary RF over Fiber transmission pair that works seamlessly together:

GST6011 (RF Optical Transmitter): Converts RF signals in the 45~2150 MHz range into high-quality optical signals for transmission over single-mode fiber.

GSR6011 (CATV Optical Receiver): Receives optical signals and converts them back to RF with stable ~25 dBμV amplification.

Both units feature a compact industrial-grade design (73×60×23 mm), power consumption under 6W, and DC-12V power supply - ideal for equipment racks and outdoor cabinets alike.

GST6011 RF Optical Transmitter

The GST6011 serves as the starting point of the RF-over-Fiber link, converting CATV and satellite IF signals into optical signals for long-distance transmission over single-mode fiber.

Key Features

Ultra-wideband Coverage: 45~2150 MHz fully supports both TERR (terrestrial TV) and SAT-IF (satellite intermediate frequency) bands, delivering multi-service capability from a single device.

DFB Coaxial Laser: Built-in high-performance DFB laser with +3 dBm output power at 1550 nm, ensuring optical stability and long-haul transmission capability.

GaAs Amplifier Technology: Gallium arsenide (GaAs) active devices deliver excellent linearity and flatness (±1.5 dB), maintaining signal quality even with multiple concurrent channels.

Ultra-Low Noise Design: Advanced noise suppression achieving CSO ≥65 dB and CTB ≥62 dB, meeting the stringent nonlinear distortion requirements of CATV systems.

32 Optical Node Distribution: A single transmitter supports up to 32 optical nodes, dramatically simplifying network topology and reducing deployment costs.

LNB Power Switching: Built-in 13V/18V switchable LNB power supply eliminates the need for external feed equipment, directly powering satellite dish LNBs.

Technical Specifications

GSR6011 CATV Optical Receiver

The GSR6011 sits at the receiving end of the fiber link, accurately converting optical signals from the GST6011 back into RF while providing approximately 25 dBμV of stable gain.

Key Features

High-Sensitivity Photodetection: Responsivity ≥0.9 A/W with a wide optical input range (-18~+3 dBm), ensuring accurate conversion even at low optical power levels.

Built-in Optical AGC: AGC mode supports -15~0 dBm input range with ±1 dB stability, maintaining consistent output levels without manual adjustment.

CWDM + High-Linearity PD: Coarse Wavelength Division Multiplexing combined with a high-linearity photodiode for wavelength-selective reception and superior interference immunity.

GaAs Amplifier Stage: The same GaAs amplification technology as the GST6011 ensures excellent linearity and flatness on the receiving end.

Stable Amplified Output: TERR output ≥80 dBμV, SAT-IF output ≥78 dBμV, 75Ω output impedance - directly compatible with standard CATV equipment.

Industrial-Grade Reliability: Low power (<6W), compact size, and robust design suitable for outdoor cabinets, indoor racks, and various installation scenarios.

Technical Specifications

Why Choose the GST6011 + GSR6011 Pair?

Full-Band Coverage, Maximum Compatibility: The 45~2150 MHz wideband design covers both terrestrial TV (TERR) and satellite IF (SAT-IF) bands simultaneously, allowing a single system to carry CATV, satellite TV, digital broadcasting, and more - eliminating redundant infrastructure.

Fiber Transmission, EMI-Immune: Unlike traditional coaxial cable, fiber optic transmission is inherently immune to electromagnetic interference. The GST6011 + GSR6011 pair ensures signal quality is never compromised by distance or environment.

Plug-and-Play Matched Pair: Factory-paired and pre-calibrated for frequency response and gain matching, the GST6011 and GSR6011 work optimally together out of the box - no complex field tuning required, resulting in shorter deployment cycles and lower maintenance costs.

Built-in AGC, Maintenance-Free: The GSR6011's optical AGC function automatically compensates for optical power fluctuations in the fiber link, keeping output levels stable and eliminating the need for frequent site visits.

GME Quality Assurance: Both products are manufactured by GOODMIND ELECTRONICS (SHENZHEN) LTD under the GME brand, undergoing rigorous incoming inspection, process control, and factory testing to ensure every unit meets industry-leading standards.

Typical Application Scenarios

CATV network fiber-optic upgrades: Replace traditional coaxial trunk lines with fiber for dramatically improved signal quality and coverage distance.

Satellite ground station signal distribution: Distribute LNB signals from satellite dishes to multiple receiving terminals via fiber, supporting up to 32 optical nodes.

Campus/broadcast systems: Unified reception and distributed coverage of CATV and satellite programming across large campuses.

Hotel/apartment multi-service access: Deliver stable, clear TV and satellite programming signals to hotels and apartment complexes.

About GOODMIND ELECTRONICS

GOODMIND ELECTRONICS (SHENZHEN) LTD specializes in the R&D and manufacturing of high-performance RF and fiber optic communication equipment, committed to delivering reliable, cost-effective solutions to global customers. The GME brand portfolio spans optical transmitters, optical receivers, ONUs, OLTS, switches, and a full range of optical communication products, serving clients across multiple countries and regions worldwide.

Learn More

Visit www.rfgme.com for detailed GST6011 and GSR6011 product pages, or contact our sales team to discuss a tailored solution for your network.