Distribution Amplifier GFT-8-S1A Series
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Order Information
Brief Introduction
GFT-8-S1A Series amplifiers are designed for 862MHz CATV RF distribution. Forward path signal amplification is carried out in two stages: The first by a MMIC amplifier IC, and the second by a GaAs amplifier module. Signal is divided into two by a plug-in tap or splitter.
The rated gain is 29dB if choose a plug-in splitter to provide equal outputs. The rated gain for the main output is 33dB if choose plug-in tap to provide unequal outputs.
Amplifier can be made with or without return path. Unidirectional amplifiers can be upgraded to have return path in the field by adding return-path amplifier module and necessary accessories.
RF signal slope is regulated by plug-in fixed value equalizer, and RF level can be tuned by plug-in fixed value attenuator. Equalizer and attenuator are of the same small plug-in unit.
GFT-8-S1A Series adopt Switch Mode Power Supply. Both AC 60V and AC 220V are available.
Product Features
- Working frequency up to 862MHz.
- Forward-path RF amplified by MMIC amplifier IC and GaAs amplifier module
- Dual RF outputs: splitter out (equal outputs) or tap out (unequal outputs) for option.
- With or without return-path optional.
- RF slope regulated by plug-in fixed value equalizer.
- RF level controlled by plug-in fixed value attenuator.
- Test Points are built for measurement.
- Switch Mode Power Supply: AC 60V or AC 220V.
- RF out ports could feed AC current into coaxial cables.
- Waterproof metal die-casting housing.
- Suitable for outdoor strand mounting.
Block Diagram
Technical Specifications
Forward-Path |
Unit |
Specifications |
Remarks |
Working Frequency |
MHz |
47/54/87~862 |
Specify when order. |
Rated Input Level |
dBμV |
72 |
|
Rated Output Level |
dBμV |
105 |
Main output port, tap out. |
101 |
Splitter out (equal outputs). |
Max. Output Level |
dBμV |
120 |
|
Rated Gain |
dB |
33 ±1 |
Main output port, tap out. |
29 ±1 |
Splitter out (equal outputs). |
In-Band Flatness |
dB |
±0.75 |
|
Noise Figure |
dB |
≤10 |
59-CH PAL signal, RF input level @ 72dBμV. |
CTB |
dB |
≥66 |
CSO |
dB |
≥63 |
Return Loss |
dB |
≥14 |
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Power Supply |
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Power Supply |
V |
AC 35~90V or AC 100~240V |
Specify when order. |
Power Consumption |
W |
Without Return-Path: ≤20
With Return-Path: ≤25 |
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