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OPCA-1200C High Gain Outdoor Bidirectional with AGC Trunk Amplifier
   Content
Description
OPCA-1200C outdoor bidirectional AGC trunk amplifier is a new high gain amplifier. Adopt mature and optimized circuit design, scientific and rational internal process, high quality materials, and built-in high performance AGC control circuit, to ensure the stable gain and low distortion. It's the first choice equipment for large and medium-sized CATV bidirectional transmission network.
 
Product feature
(1) It is more convenient to debug because of the plug-in duplex filter, fixed equalizer and attenuator, plug-in output tap, and the scientific and reasonable on-line detection ports.
(2) Built-in optimal designed high performance AGC control circuit, make the control more precise and the signal operation more stable.
(3) The equipment can long time continuous work steadily under outdoor bad environmental condition. Because of the aluminum waterproof housing, high reliability switching power supply and strict lightning protection system.
 
Technical data
Item
Unit
Technical Parameter
Forward Path
Frequency range
MHz
47/85 ~860/1003
Rated gain (@FZ110)
dB
30
34
36
38
Min full gain (@FZ110)
dB
≥30
≥34
≥36
≥38
Rated Input Level
dBμV
72
Rated Output Level
dBμV
106/108
Flatness In Band
dB
±0.75
Noise Figure
dB
≤ 10
Return Loss
dB
≥ 16
ATT
dB
1-18 (Fixed, 1dB stepping, selectable)
EQ
dB
1-15 (Fixed, 1dB stepping, selectable)
C/CTB
dB
≥67
Test condition: 79 channels.
Output level: 53MHz/550MHz/750MHz.
C/CSO
dB
≥69
99dBuV/105dBuV/108 dBuV
AGC Pilot Frequency
MHz
168.25 (Or specified by the user)
AGC Characteristic
dB
±4 (input) /±0.5 (output)
Group Delay
ns
≤ 10 (112.25 MHz/116.68 MHz)
Signal to Hum Ratio
%
< 2
Gain Stability
dB
-1.0 ~ +1.0
Return Path
Frequency Range
MHz
5 ~ 42/65
Rated Gain (@FZ110)
dB
12
16
20
24
Max Output Level
dBμV
≥ 110
Flatness In Band
dB
±0.75
Noise Figure
dB
≤ 12
Return Loss
dB
≥ 16
Carrier to Second Order Intermodulation Ratio
dB
≥ 52
Test condition: output level 110dBμV,
Test points: 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 Port
dB
-20±1
Power Voltage
V
A: AC (135 ~ 250)V or B: AC (35 ~ 90)V
Impulse Withstand Voltage (10/700μs)
kV
> 5
Power Consumption
W
22
Dimension
mm
260(L)x200(W)x130(H)
 
Block Diagram
 
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