• Outdoor Bi-directional Trunk Amplifier with AGC
  • Model Number: SA812AGC
  • Brand: SOFTEL
  • MOQ: 1PCS
 

Quick Detail:
 
●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 SA812AGC)
●PHILIPS return amplifier modules are used as backward path. Its distortion is little and SNR is high.
●It is 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 aluminium case, high reliability
 switching power supply and lightning protection system.
 
 
Description:
 
SA812AGC 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.
 
 
Applications:
 
CATV System
 

Specifications:

Item

Unit

Technique Parameter

 

 

SA812AGC-36

SA812AGC-38

Downlink Transmission Path

Frequency Range

MHz

53/85~862

53/85~862

Rated Gain

dB

OUT1≥36

OUT2≥36

(FP-204 Output)

OUT1≥40

OUT2≥30

(FZ-110Output)

≥38

Minimum Full Gain

dB

≥36

≥38

Rated Input Level

dBμV

72

Rated Output Level

dBμV

106/108

108

Flatness in Band

dB

±0.75

Noise Figure

dB

≤10

Return Loss

dB

≥16

Attenuation Range

dB

1-18Fixed insert,1dB stepping

Equilibrium Range

dB

1-15Fixed insert,1dB stepping

C/CTB

dB

≥67Note 1

C/CSO

dB

≥69Note 1

AGC Pilot Carrier Frequency

MHz

168.25Or up to users

AGC Characteristic

dB

±4Input/±0.5Output

Group Delay

ns

≤ 10  (112.25 MHz/116.68 MHz)

Signal to Hum Ratio

%

< 2

Gain Stability

dB

-1.0 ~ +1.0

Uplink Transmission Path

Frequency Range

MHz

5 ~ 42/65

Rated Gain

dB

OUT1≥20

OUT2≥20

FP-20 Output

OUT1≥22

OUT2≥12

FZ-11 Output

≥20

Minimum Full Gain

dB

≥20

≥22

≥20

Maximum Output Level

dBμV

≥110

Flatness in Band

dB

±0.75

Noise Figure

dB

≤12

Return Loss

dB

≥16

Carrier to Second-order Inter-modulation Ratio

dB

≥ 52 (Test Condition: Output level is 110dBuV,measurement point 
F1=10MHz, F2=60MHz,F3=f2-f1=50MHz)

Group Delay

ns

≤ 20  (57MHz/59MHz)

Signal to Hum Ratio

%

2

General Characteristic

Characteristic

Impedance

Ω

75

Test Interface

dB

-20±1

Supply Voltage

V

AAC135 ~ 250VBAC35 ~ 90V

Impulse Withstand Voltage10/700μs

kV

> 5

Power Consumption

W

≤25

≤30

Dimensions

mm

250L* 205W* 125H

290L*220W* 125H