46~860MHz Combined Agile Modulator

  • group nameCATV Analog Headend

  • Min Order1 piece

  • brand nameEASTEC

  • modelE-1208

  • update timeWed, 15 Aug 2012 22:25:28 GMT

Packging & Delivery

  • Min Order1 piece

Briefing

Economical 16-channel combined modulators for CATV headend

Detailed

Introduction

E-1208 is one combined agile mini-modulators unit that is developed according to space-saving, durable, and high performance design principle. It is composed of 10 mini-modulators, 2 amplifiers and one highly efficient switching power supply that are all vertically installed in one 3U sized standard rack. For each modulator, concentrated power supply, and internal combining mode are applied to allow system debugging simple and reliable. The 3U sized standard rack can either be installed on 19-inch cabinet, or is flexible to apply wall-hanging mode. Each modulator’s channel is displayed by LED on front panel. You will easily change channel numbers to set up random headend system within 47~860MHz.

 

Features

l         Double frequency conversion, modularized amplification

l         Video modulation depth, audio deviation, A/V ratio, output level are all controlled by CPU.

l         The switching power supply applied is applicable to voltage 100~200V.

l         Equipped with built-in combiner, no need to install additional combiner.

Item

Unit

Specifications

RF

Output Frequency

MHz

47~860

System

 

PAL B/G, D/K, M/N

Max Output Level

dBµV

95

RF Output Range

dB

20

V/A Ratio

dB

-13~20

Broadband Noise

dB

-60

Frequency Stability

KHz

±3

Output Impedance

Ω

75

Output Rejection Loss

dB

16

Video Mod Depth

%

87.5

Video

Input level for 87.5%

Vp-p

1

Differential Gain

%

≤5

Differential Phase

°

≤5

C/L Delay

nsec

≤45

Frequency Response

dB

±0.75

Modulation Range

%

72.5~90

Video IF Output Frequency

MHz

906

Video S/N

dB

60

Audio

Input Level

Vp-p

0.4

Input Impedance

Ω

10K

Audio Carrier Response

MHz

4.5, 5.5, 6.0, 6.5

Deviation

dB

±0.5

Pre-emphasis

Msec

50

General

Power Supply

V

90~250

Fuse

A

20-0.5

Temperature Range

0~40

Connectors

Video Audio input, IF loop and RF output are all type F.