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CATV High-Class Trunk Amplifier (DT-HTA-8300)



 Description

CATV trunk amplifier,DT-TAA-8300 outdoor bidirectional amplifier is a high gain high output modular amplifier,

It is suitable to the 1GHz CATV bidirectional cable transmission network,Forward Path:(Operating Frequency:47/54/85-862/1003 MHz,Highest Gain:≥40dB,C/CTB:≥65dB,C/CSO:≥63dB.),Return Path:(Operating Frequency:5~ 30/42/65MHz,

Highest Gain:≥20dB,Carrier second order intermodulation ration:≥52dB,Operating Voltage :AC150~265V or AC 35~90V(50Hz),

Dimension:295mm x :210mm x 150mm.

 

 Features

Plug-in equalizer and attenuator, GaAs power doubler output.

Two-channel independent output ,modular cast aluminum waterproof shell.


 Application

CATV System.

Building large or middle-sized CATV bi-directional transmission network.


Performance Parameters

Item

Unit

Technical Parameters

Forward Path

Frequency range

MHz

47/54/85-862/1003

Rated gain

dB

30

34

36

38

40

Minimum full gain

dB

≥30

≥34

≥36

≥38

≥40

Rated input level

dBμV

72

Rated output level

dBμV

108

Flatness in band

dB

±0.75

Noise figure

dB

≤10

Return loss

dB

≥16

Attenuation

dB

1-18 (Fixed insert,1dB stepping)

According to user requirements

Equilibrium

dB

1-15 (Fixed insert,1dB stepping)

C/CTB

dB

65

Test condition: 79 channels signal, 

output level: 

85MHz/550MHz/860MHz.

99dBuV/105dBuV/108 dBuV

C/CSO

dB

63

Group delay

ns

≤10  (112.25 MHz/116.68 MHz)

AC hum modulation

%

< 2%

Gain stability

dB

-1.0 ~ +1.0


Return Path

Frequency range

MHz

5 ~ 30/42/65

Rated gain

dB

≥20

Minimum full gain

dB

≥22

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  110dBuV, test points: 

F1=10MHz,f2=60MHz,f3=f2-f1=50MHz

Group delay

ns

≤ 20 (57MHz/59MHz)

AC hum modulation

%

< 2%

General Performance

Characteristic impedance

Ω

75

Test port

dB

-20±1

Power supply voltage

V

AAC (135 ~ 250) VBAC45 ~ 90) 

Impulse withstand voltage10/700μs

kV

> 5

Power consumption

W

29

Dimension

mm

295 (L) × 210 (W) × 150 (H)

 

Ordering Guide

Please confirm: uplink and downlink splitting frequency of bi-directional paths.