Product
AMPLIFIER


product description:

STB3000 series amplifiers power multiplying the forward part of the output stage amplifier module as compared to the push-pull output module has a higher level and a better non-linear distortion, can be used as CATV systems and CATV trunk amplifier system expansion band upgrading of products.


Features:

Switching power supply, voltage high bandwidth, power supply is optional.

Field cast aluminum housing, has a good waterproof performance, electromagnetic shielding performance and heat dissipation.

Machine components modular design, easy maintenance also protect, upgrade and maintenance.

RF input and output ports designed with lightning and surge protection. Input and output ports to monitor ports according to user needs, the flexibility provided within or outside the machine.

Independent of the reverse channel, reverse amplifier gain 17 ~ 24dB. It has a reverse decay, balanced, flexible control over reverse output level.

Output component design, the flexibility to choose the branch or online distribution output type.

Aluminum case cover directly shows the machine works and identifies the adjustment device connectors each function works.


Technical Parameters:
1, the forward main channel performance parameters:

project

unit

Performance parameters

Frequency Range

MHz

87~862(1003)

Nominal output level

dBuV

104/107/101   862/550/47 MHz

Combination carrier intermodulation ratio

dB

64

Carrier combination triple beat ratio (Note 1)

dB

62

Secondary carrier combination beat ratio (Note 1)

dB

62

Gain and input level adjustment range

dB

0~-10

Band flatness

dB

≤±0.75

Group Delay

nS

τ≤10(57.75 ;62.18MHz) 
τ≤10(112.25 ;116.68MHz)

Return Loss

dB

87~862 MHz≥16,862~1003 MHz≥14

Noise factor

dB

≤10

Carrier hum ratio

dB

≥66

Withstand voltage

kV

≥5(10/700ns)

Nominal supply voltage (AC)

V

AC60V、AC220V

Output stability

dB

Output in the range of -25 ℃ ~ + 55 ℃ change of ± 1

Note 1: 87-862MHz transmission 85 PAL analog TV channels, flat output band 102dBuV.

2、Reverse (secondary) channel performance parameters:

project

unit

Performance parameters

Frequency Range

MHz

5~65

Standard gain

dB

0、14、16、18、20、24、28(可选)

Band flatness

dB

±0.5

Input and output return loss

dB

≥16

Noise factor

dB

≤10

Carrier hum ratio

dB

≥66

Ordering Guide:

STB

0

00

0

0

GSD Amplifier Type

1: Single Module
3: Dual Module

26: Gain 26dB
30: Gain 30dB
33: Gain 33dB

8: 862 MHz Bandwidth
1: 1GHz Bandwidth

D: unidirectional
S: two-way, reverse amplifier module
SE: bidirectional, reverse straight

Example: STB3308SE, double module represents the forward amplification, gain 30dB, 862MHz of bandwidth, EOC amplifier, reverse straight.