●The microwave low noise amplification circuits or RF modules encapsulated by SOT-115 for CATV are used as forward paths. Output level is stability, and nonlinear index is good.

●The microwave low noise amplification circuits with little distortion and high SNR are used as backward paths.

●It is more convenient to debug, because of plug-in duplex filters, adjustable equalizers, adjustable attenuators, plug-in output splitters and scientific and rational on-line detection ports.

●The equipment can work steadily outdoor under bad environmental condition, because of high reliability linear power supply and lightning protection system of good-looking aluminum alloy shell with good heat dispersing performance.

 

 

 

SA801H Indoor Bi-directional Amplifier are special amplifiers designed for the last”1km” of the bi-directional transmission network. Special CATV RF modules packaged in SOT-115  are used as forward channel; Microwave tube push-pull circuit with low noise are used as backward channel ;It has the characteristics of low power consumption，high reliability and excellent cost performance. And it is suitable for small and medium sized CATV bi-directional transmission network.

 

 

 

●CATV System

●HFC network

 

 

Specifications:

Item	Unit	Technical Parameter
Downlink Transmission Path
Frequency Range	MHz	47/87-862
Rated Gain	dB	30
Minimum Full Gain	dB	≥30
Rated Input Level	dBμV	72
Rated Output Level	dBμV	102
Flatness in Band	dB	±1
Noise Figure	dB	≤10
Return Loss	dB	≥14
C/CTB	dB	≥ 58
C/CSO	dB	≥ 56
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 -30/65
Rated Gain	dB	15
Minimum Full Gain	dB	≥15
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
Group Delay	ns	≤ 20  (57MHz/59MHz)
Signal to Hum Ratio	%	＜2
General Characteristic
Characteristic Impedance	Ω	75
Supply Voltage	V	A：AC（165 ～250）V；B：AC（15～60）V
Impulse Withstand Voltage（10/700μs）	kV	> 5
Power Consumption	W	8
Dimensions	mm	178（L）x 100（W）x 55（H）