KHUẾCH ĐẠI TRUNK WA-1236

Name: Khuếch đại trục truyền hình cáp WA-1236
Brand: VTS- CHINA

Mã sản phẩm : WA-1236

Xuất xứ : VTS- CHINA

Bảo hành : 12 Tháng

Chuyên dùng khuếch đại tín hiệu cho hệ thống truyền hình cáp, mạng tivi CATV của các tòa nhà, khách sạn, chung cư, hộ gia đình dùng nhiều tivi, tín hiệu khuếch đại ra tới các tivi đẹp, rõ nét, hoạt động ổn định, liên tục. Có thể khuếch đại cho 30 ~ 40 tivi. Thiết bị nhập khẩu chính thức, có đầy đủ giấy chứng nhận C/O, C/Q.

CHI TIẾT
THÔNG SỐ KỸ THUẬT
DOWNLOAD PDF

Product Summary
WA-1236 series outdoor modular bidirectional trunk amplifier is a new high gain amplifier. Adopt mature and optimized circuit design, scientific and rational internal process, high quality materials, to ensure the stable gain and low distortion. It's the first choice equipment for large and medium-sized CATV bidirectional transmission network.
Performance Characteristics
■ Forward path pre-stage adopts the newest high index imported low noise push-pull amplify module or GaAs push-pull module, and the output stage adopts an independent newest high index imported power doubler amplify module or GaAs amplify module, to achieve good nonlinear index and stable output level.
■ Return path adopts the newest high index imported reverse dedicated amplify module, to achieve low distortion and high SNR.
■ It is more convenient to debug because of the plug-in duplex filter, fixed equalizer and attenuator (EQ and ATT both adopt fixed attenuator to adjust the equilibrium and attenuation), plug-in output tap or splitter, and the scientific and reasonable on-line detection ports.
■ The output level mode is AGC or MGC optional, it is more convenient.
■ The equipment can long time continuous work steadily under outdoor bad environmental condition. Because of the aluminum waterproof housing, high reliability switching power supply and strict lightning protection system.
■ The structure adopts embedded modular design, easy to maintain, replace and debug.

Item	Unit	Technical Parameter
Forward Path
Frequency range	MHz	87-862/1003
Rated gain(@FZ110)	dB	36
Min full gain(@FZ110)	dB	≥36
Rated Input Level	dBμV	72
Rated Output Level	dBμV	108
Flatness In Band	dB	±0.75
Noise Figure	dB	≤10
Return Loss	dB	≥16
ATT	dB	1-18 (Fixed, 1dB stepping, selectable)
EQ	dB	1-15 (Fixed, 1dB stepping, selectable)
C/CTB	dB	67	Test condition: 84 channels.
			Output level: 85MHz/750MHz/1003MHz
C/CSO	dB	65	100dBuV/105dBuV/108 dBuV
Group Delay	ns	≤10 (112.25 MHz/116.68 MHz)
Signal to Hum Ratio	%	< 2%
Gain Stability	dB	-1.0 ~ +1.0

Return Path
Frequency Range	MHz	5 ~ 65
Rated Gain	dB	≥22 (@FZ110)
Min Full Gain	dB	≥22 (@FZ110)
Flatness In Band	dB	±0.75
Noise Figure	dB	≤ 8
Return Loss	dB	≥ 16
Carrier to Second Order Intermodulation Ratio	dB	≥ 52	Test condition: output level 110dBμV, Test points: F1=10MHz,F2=60MHz, F3=F2-F1=50MHz
Group Delay	ns	≤ 20 (57MHz/59MHz)
Signal to Hum Ratio	%	< 2%
General Characteristic
Characteristic Impedance	Ω	75
Test Port	dB	-20±1
Power Voltage	V	A: AC (135 ~ 250)V; B: AC (45 ~ 90)V
Impulse Withstand Voltage (10/700μs)	kV	> 5
Power Consumption	W	≤22
Dimension	mm	295 (L) × 210 (W) × 150 (H)

4. Block Diagram

1	Forward path ATT	2	AC overcurrent fuse	3	AC60V feed port
4	Forward path EQ	5	MGCregulator potentiometer	6	MGC indicator
7	AGC regulator potentiometer	8	AGC indicator	9	RF input
10	Return path outputtest port	11	Forward path input test port	12	Return path EQ
13	Return path ATT	14	Working indicator	15	Transform inserter*
16	Forward path EQ	17	AC overcurrent fuse	18	RF output 1
19	Forward path ATT	20	Forward path output test port	21	AGC/MGC mode switch
22	Mainboard power supply port	23	RF output 2	24	Tap or splitter
25	Return path inputtest port	26	AC overcurrent fuse	27	Return path input ATT
28	Low pass filter	29	Transform inserter*

*Change the insert direction of component 15, 29 to determine the return path is amplified or not.

6. Order Guide

When ordering: please confirm the split frequency.

Special Notice:
1. This product must be reliable grounded before use.
2. The maximum over-current capacity of this product is 10A.
7. After-sales service description
1.      We promise: Free warranty for thirteen months (Leave factory time on product qualification certificate as the start date). The extended warranty term based on the supply agreement. We responsible for lifetime maintenance. If the equipment fault is resulted from the users’ improperly operation or unavoidable environment reasons, we will responsible maintenance but ask suitable material cost.
2.      When the equipment breaks down, immediately contact local distributor or directly call our technical support hotline 86-0571-82576002, 18967160936.
3.      The site maintenance of the fault equipment must be operated by professional technicians to avoid worse damage.
Special notice: If the equipment has been maintained by users, we will not responsible free maintenance. We will ask suitable maintenance cost and material cost.