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Help CenterDEXIN DUT-8323 DVB-T Digital tv Transmitter
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Specifications
DVB-T digital tv transmitter5W-5000W power optional
super linear design
Support MFN and SFN
Support AGC/MGC
DUT-8323 DVB-T Digital TV Transmitter
Outline
DUT-8323 is a professional DVB-T digital transmitter researched and developed by DEXIN, which gives sustained power output. Its compact structure design has greatly saved space for your room. It is applicable to both SFN and MFN network modes and supports both signal-carrier mode and multi carrier-mode. Signal channel and broadband transmission are supported.
The frequency range of DUT-8323 is from 470MHz~566MHz, 606MHz~806MHz. This transmitter has a very high linear and high reliability as it takes high gain and high linear LDMOS tube amplifier module. Furthermore, it supports AGC function to keep sustained power output.
DUT-8323 DVB-T digital transmitter can be widely used in HD/SD digital TV signal transmitting and broadcasting system.
Key Features
- Enhanced signal transmission quality
- Intelligent and modularized amplifier unit, takes high power gain and high linear LDMOS tube amplifier module design
- Low power consumption and super linear design to improve the transmission power, and reduce the nonlinear distortion
- Support AGC function with sustained power output to allow the transmitter a good stability and reliability
- Support MFN and SFN system
- Support fault self-diagnosis
- Full digital front panel control, easy operation.
- LED on the front panel support alarm and signal monitor
- Stabilized-power supply with wide range of voltage and high efficiency
- Parallel connected power supply for final-amplifiers, support hot standby
- Cooling system with low consumption and low noise
- Multi lightning protection measures, good protection for whole equipment.
- 24-hour working unmanned, user friendly design
- Easy to install, elegant appearance
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Technical Specifications
Basic Parameters
Frequency Range
470MHz~566MHz, 606MHz~806MHz
Output characteristic impedance
50Ω
output power stability
±0.5dB
Inner adjacent channel transmission power
Inner adjacent channel transmission power : in-band transmission power≤-45dB, meet that Inner adjacent channel transmission power ≤13mW
External adjacent channel transmission power
External adjacent channel transmission power : in-band transmission power≤-60dB, meet that Inner adjacent channel transmission power ≤13mW
RF input level
-20 dBm±3dB
Input reflection loss
≥15dB
RF Connector Type
‘N’
RF output power
1500W, 2000W, 2500W, 3000W optional
Step length for SFN frequency adjustment
1Hz
Frequency stability
(3 months)
Inner reference source: stability≤1X10-7
External reference source: stability≤1X10-10
Frequency accuracy
MFN: accuracy:±100Hz
SFN: accuracy:±1Hz
Local oscillator phase noise
Center frequency offset (Hz)
Local oscillator phase noise (dBc/Hz)
10
<-60
100
<-75
1k
<-85
10k
<-95
100k
<-110
1M
<-115
Spectrum Mask
Compliant with regulations about external spectrum mask in GB 20600
Frequency response
±0.5dB
Output impedance
50Ω
Shoulder level
≥40dB@central frequency IF±4.2MHz (after correction)
MER
≥33dB
output reflection loss
≥20dB
Output connector
1-5/8 EIA
Environment condition
Working temperature
-20~+50°C
Storage temperature
-30~+75°C
Relatively humidity
<95%(no condensation at 25°C)
Cooling mode
Built-in cooling fan
atm press
86~106kPa
power supply
AC, 380V±10%/50Hz
Machine room requirement
less dust, no shake
Dimension
1140 X 850 X 1845 mm
System Principle
Items |
Quantity |
Power Supply |
8 PCS |
Modulator |
1 PC |
Pre-Exciter |
1 PC |
Power Distributor |
1 PC |
Power Amplifier |
8 PCS |
Power Combiner |
1 PC |
Filter |
1 PC |
Feeder |
X Meters (as ordered) |
Antenna |
1 PC (as ordered) |
Monitoring Unit |
1 PC |
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