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 |
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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