ISDB-T/Tb Digital Modulator 

Main Features:

n Fully compliant with ISDB-T and ISDB-TB standards

n Innovative DDRF^TM (Direct Digital RF) broadband automatic balancing technology achieves near perfect RF performance: MER ≥ 45 dB, shoulder level ≤ -58 dB, out of band spurious ≤ -60 dB and ultra-low noise floor, etc

n Powerful linear and non-linear ADPC^TM(Adaptive Digital Pre-Correction) with patented multi-dimensional pre-correction and precision demodulation technologies

n Independent feedback for adaptive SWR optimization function maximizes emission signal quality after the transmitter band-pass filters (BPF)

n Integrated GPS receiver

n Continuous, automatic and real time measurement and display of IMD (Intermodulation Distortion within ±500 kHz) and SNR of transmitted signal

n Digital ultra-wideband phase noise processing technology automatically detects, tracks and compensates phase noise to achieve excellent performance

n Patented AIM^TM(Adaptive Impedance Match) technology ensures impedance matching at RF output

n Seamless switching between up to 4 inputs (ASI format) automatically or manually

n Real-time input transport stream rate display

n MFN and SFN support

n Instant alarms and protective spectrum output during abnormal conditions

n Real-time temperature display and overheat alarm
n Powerful control and monitor interfaces (web/RS232/RS485/front panel) and easy-to-use UI
n Support firmware remote update via RJ45

Technical Specifications:

Guilin CEKE Communication Equipment Co., Ltd.

Tel:  +86 773 2120 156   

Fax: +86 773 2120 299 

QQ: 175147591

Skype: mophi_dh

Email:  cekemophi @163.com

 

 

1.More than 14 years of experience in high-frequency microwave equipment research, design, production, installation, debugging and maintenance.

 

2.With sophisticated research and development capability and cooperated with China North Industries Group 206 Institute, Guilin Institute of Automation Technology, Beijing University of Posts and Telecommunication and Guilin College of Aerospace Technology. Providing the most advanced products.

 

3.With a full range of large-scale terrestrial digital television networking products, we are sure that you will find what you need in setting up a large area terrestrial digital TV transmission coverage network

 

4.Providing comparative price and high quality products, so far, our company have cooperated with many customers from over 50 countries and gained good reputation at home and abroad.

 

Q1.What these equipments used for?
A1.We are original manufacturer in terrestrial digital TV transmitting equipments; they are professional used for TV Station (Transmitting equipment.)

 

Q2.What equipment & solution your company can provide?
A2.We can provide full sets of digital TV transmission system equipments and best solution of broadband network construction.  It includes: Head End Equipments --Transmitting Equipments--Receiving System Equipments.

Q3.How large areas can One Station cover?
A3.One TV Station can cover one city or one town.
The Maximum cover ranges of one station can not over 100KM Radius because the Earth is Curve.
You can use Multiple Stations & Different Frequency to cover larger area.

Q4.How do I choose suitable equipments for my station?
A4.The most import factors are Power and Frequency.
We need to know the Power and Frequency you need exactly.
How long the distances do you want to cover in Radius?
How height your Antenna can be installed?

Q5.How to calculate transmitting equipment Cover Range?
A5.The Cover Range depends on 4 factors:
1.Power from Transmitter;2.Height of Antenna;3.Gain from Antenna;4.Around Environment.
Then we can know the cover range of your station.

Q6.How to make a design for one site?
A6.We need to know following information from you:
1. The longitude and latitude of this site; 2. Height of the iron tower; 3. Transmission distances; 4. Number of programs; 5.. Applicable standards; 6. Program resources.

Q7.How to do installation of these equipments?
A8.For small power station, the equipments are very easy for installation.
For large power station, we can send our engineer to your country to help you do the installation, but you should pay the cost.
We also can do training for your engineer here in our company.

Q8.How to operate these broadcasting equipments?
A9.We provide All-English user manual;All-English operation software in our equipment.
We also can do training for your engineer here in our company.

Q9.What about after sales?
A10.The warranty time is one year after goods leaving factory. Within this period, the quality problems are raised due to non-artificial reasons, we will bear the cost of replacing the corresponding components. 
Alos we can provide technical support from internet or in our company.