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Home » Product List » Terrestrial Digital TV UHF Indoor Wide-band Transmitter » CKUB-T800 Wide-Band Frequency Transmitter

Product Details

CKUB-T800 Wide-Band Frequency Transmitter

   
Model NO.:  CKUB-T 800
Standard:  ISO-9001
Productivity:  1, 000 Sets / Year
Unit Price:  Negotiable
Shipment Terms:  FOB
Payment Terms:  T/T
Minimum Order:  1 Pieces
Price Valid Time:  From Sep 30,2011 To Sep 26,2012
Trademark:  CEKE
Origin:  China
Export Markets:  North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
Product Description

Wide-band frequency Transmission Network Technology is an innovative technology using one Wide-band frequency transmitter to achieve multi-channel transmitting, solving the existing problems of single-channel system in one fell swoop. It is conducive to build up the terrestrial digital TV multi-channel single frequency network with effective coverage and strong stability.
With this innovative technology, our one set of transmitter can transmit multiple TV channels, breaking through the limitation that the traditional transmitter only can do the single channel transmitting, which makes the investment in digital TV system significantly reduced, and our transmitter also do not need to use the high power synthesizer, realizing the adjacent channel transmitting, it dramatically increase the utilization of wireless frequency resource, and the transmitting frequency can be modified at any time in the transmitting process. Since we just need one set of transmitter to build the network, the later stage energy consumption and the operation cost will be dramatically reduced. Building the network with only one transmitter, it is relatively simple than the traditional networking method, it can effectively reduce the failure rate, this will effectively reduce the maintenance cost. Because our transmitter have reduced the power combiner insertion loss, this will increase the effective power of the transmitter, therefore, under the equal transmitting power, our Wide-band frequency transmitter can cover more large aera than the traditional single-channel transmitter, achieve the goal that covering the large area with low power.

Main Features
470--862MHz Wide-band frequency response and low noise design
Design of low power consumption and linearization advances emitting power of the transmitter and reduces nonlinear distortion.
Very low group delay feature, suitable for digital signal transmission.
ALC keeps output of constant power, output VSWR detecting protection
Apply to single-channel or multi-channel UHF digital television transmission system
Be used in the Wide-band frequency repeating of HFC, AML, or MMDS digital TV signal
Realize wireless network coverage of digital TV at a low cost.
Modular design simplifies installation, field services and upgrade.
Automatic and manual switching backup systems available.
Build-in lightning protector with current-dividing series power prevents lighting surge and instant overvoltage.
Local monitoring and control.
Wireless remote monitoring and control (Optional)

Parameters Symbol Min. Typ. Max Unit
Input and output frequency range A FOUT 470   680 MHz
B 650   862
Conversion gain flatness
over all frequency band bandwidth
DGa   1 2 dB
Conversion gain flatnesss
over 8MHz bandwidth
DG8MHz   0.3 0.5 dB
Noise Figure Nf   3.0 6.0 dB
Input Signal Level PIN 82   112 dBmV
ALC range DGALC 15 20   dB
ALC voltage control range VALC 0.6 1.2 3.2 V
Output power stability(ALC on) DPOUT     1 dB
Out-of – band Harmonic Level
  (External Connection Filter)
H     -60 dBc
In-band spurious signal level Spur     -55 dBc
Group Delay GD     30 ns
Input Return Loss RLIN 15     dB
Output Return Loss RLOUT 17     dB
Digital average output power * Single-channel PAVG 60     dBm
Multi-channel 59    
Spectrum Shoulder Distance @fcenter± 4.2MHz (Single-channel) Shoulder 36 42   dB
Error Vector Magnitude EVM     2 %
Signal to Noise Ratio@8HMz bandwidth S/N 40     dB
Magnitude Linearity(AM-AM conversion) LAM-AM     0.3 dB
Phase Linearity(AM-PM conversion) LAM-PM     2 Degree
Mean Time Between Failures MTBF 45000     hour
Input Impedance/Connector 75W/FL10-75K
-20dB Input Monitoring Impedance/Connector 75W/FL10-75K
Output Impedance/Connector 50W/N-50K
-50dB Output Monitoring Impedance/Connector 50W/SMA-50K
Backup Cut-over Guard Signal Output Connector BNC-75(TTL Low-Normal/TTL High-Abnormal)
Detection Display LED Display Screen/Function Key/LED indicator/Buzzer
Local status monitoring port connector RJ-45 (10 Base-T) / DB-9J(RS-232)
Wireless Long-distance Monitoring Port Connector SMA-50K(optional)
Power Supply AC220V ± 15%/ AC380V ± 15% (47~63Hz)
Power Consumption 3.7 KW
Power Supply Connector IEC320
Cooling System Temperature-controlled forced air cooling
Operating Temperature Range -10 ~ +45° C
Operating Humidity 0 ~ 95%, non-condensing
Storage Temperature -55 ~ +85° C
Storage Relative Humidity 0 ~ 95%, non-condensing
Size(W' H' D)/Weight 620mm´ 1400mm´ 960mm /260kg
 
 

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