CATV Trunk Amplifier with Return Path
SA1200 outdoor bidirectional AGC trunk amplifier is a new high gain amplifier. It adopts mature and optimized circuit design, scientific and rational internal process, high quality materials, and built-in high performance AGC control circuit, which ensures the stable gain and low distortion. This CATV trunk amplifier with return path is the first choice equipment for large and medium-sized CATV bidirectional transmission network.
Performance Characteristics
■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.
■Built-in optimal designed high performance AGC control circuit, make the control more precise and the signal operation more stable.
■CATV trunk amplifier with return path 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.
Technique Parameters of CATV Trunk Amplifier With Return Path
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. | |||
C/CSO | dB | ≥69 | ||||
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 Inter-modulation Ratio | dB | ≥ 52 | Test condition: output level 110dBμV, | |||
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；B：AC（35 ~ 90）V | ||||
Impulse Withstand Voltage (10/700μs) | kV | > 5 | ||||
Power Consumption | W | 22 | ||||
Dimension | mm | 260（L）╳ 200（W）╳ 130（H） | ||||
Package
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