Origin

China

HHA-LE870-34A Line Extender Amplifier

  Introduction

HHA-LE870-34A is a single  way high-gain Bi-directional Line Extender amplifier suitable  for signal amplification in the HFC system coaxial trunk. The CTB/CSO performance is outstanding with a return loss of 16 dB.  frequency of diplex filter is optional. There is also AGC/MGC functions.

  Characteristics

● Gallium arsenide amplifier module used for the forward path. 34 dB high gain

● Provided with the frequency response adjustment plug-in unit, capable of effectively compensating the convex hull resulting from cable nonlinear attenuation.

● Internationally advanced passivating treatment and double layer waterproof process are used in the outdoor type aluminum die cast casing, resistant to corrosion and aging, good in heat dissipation, water impermeability and electromagnetic shield;

● Forward/Return path input/output level tunable, easy in system debug;

● Use high quality bidirectional plug-in unit interface , convenient in network update.

● Highly effective low noise switching power supply to ensure the signal’s bidirectional transmission index.

BlockDiagram

Specifications

PARAMETER	UNITS	FORWARD	RETURN
Passband	MHz	54～870	5～42
Flatness	dB	±0.75	±0.50
Operational Gain	dB	34	18/22
Operational Gain Adjustment	dB	0～10	------
AGC Control Range	dB	±3/±0.5	------
Interstage Slope	dB	8±1	------
Equalizer Adjustment	dB	3～12	------
Noise Figure	dB	8	7.5
Input Level	dBmV	≤12	------
Output Level 54/550/870	dBmV	36/41/44	42FLAT
CTB	dBc	≤-75	------
CSO	dBc	≤-75	------
XM	dB	65	------
Test Point Attenuator	dB	-20	-20
AGC Pilot Frequency	MHz	499.25	------
Return Loss	dB	≥16	≥16
Hum Modulation	dBc	65
DC Voltage	V	24±0.25
DC Ripple	mV	≤50
Power Consumption	W	25
AC Input Voltage Range	V	38～90
AC Bypass Current All Ports	A	15
Housing Dimensions	mm	315×250×130
Weight	KG	4
Ambient Operating Temperature	℃	-25～+55