-800x800.jpg "5-870MHz-2-Output-38dB-Gain-Outdoor")
Description
SNP8238C, SNP8238C Field Bidirectional AGC Amplifier is a new high gain amplifier. Adopt optimized circuit design and scientific and rational process. High performance AGC control circuit inside is useful for stable gain and low distortion. It's the best choice for large and medium-sized bidirectional CATV transmission network.
Product feature
PHILIPS or NEC low noise push pull amplifier modules or GaAs push pull amplifier modules are used as forestage of forward path. PHILIPS or NEC Power-Double gallium arsenide amplifier modules or GaAs amplifier modules are used as output stage. Output level is stable and nonlinear index is good.
(Power-Double gallium arsenide amplifier modules or GaAs amplifier modules are independent in SNP8238C.)
PHILIPS return amplifier modules are used as backward path. Its distortion is little and SNR is high.
It’s more convenient to debug, because of plug-in (or adjustable) duplex filters, plug-in fixed (or adjustable) equalizers, plug-in output splitters and scientific and rational on-line detection ports.
Optimal AGC control circuit cause precise control and steady link signal.
The equipment can work steadily outdoor under bad environmental condition, because of waterproof aluminum case, high reliability switching power supply and lightning protection system.
Block diagram
Technique index
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Item |
Unit |
Technique Parameter |
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SNP8238C-X |
SNP8338C-X |
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Downlink Transmission Path |
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Frequency Range |
MHz |
53/85~862 |
53/85~862 |
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|
Rated Gain |
dB |
OUT1: ≥38 OUT2: ≥36 FP-204 Output |
OUT1: ≥40 OUT2: ≥30 FZ-110 Output |
OUT1: ≥38 OUT2: ≥38
|
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Minimum Full Gain |
dB |
≥36 |
≥38 |
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Rated Input Level |
dBμV |
72 |
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Rated Output Level |
dBμV |
106/108 |
110/110 |
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Flatness in Band |
dB |
±0.75 |
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|
Noise Figure |
dB |
≤10 |
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Return Loss |
dB |
≥16 |
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AttenuationRange |
dB |
1-18 (Fixed insert, 1dB stepping) |
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Equilibrium Range |
dB |
1-15 (Fixed insert, 1dB stepping) |
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|
C/CTB |
dB |
≥67 (Note 1) |
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C/CSO |
dB |
≥69 (Note 1) |
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AGC Pilot Carrier Frequency |
MHz |
168.25 (Or up to users) |
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AGC Characteristic |
dB |
±4 (Input) / ±0.5 (Output) |
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Group Delay |
ns |
≤ 10 (112.25 MHz / 116.68 MHz) |
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|
Signal to Hum Ratio |
% |
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