深圳市鑫成通電子有限公司供應(yīng)DTE--27832121Designed to meet the most demanding requirements of today’s Digital Terrestrial Television Broadcast Marketsprocess.
General
Designed to meet the most demanding requirements of today’s Digital Terrestrial Television Broadcast Markets, A key factor in the products success is the quality of the coding and modulation process. The modular design makes the unit highly flexible and the modulator is easily adaptable to provide the exact features required in a specific application.

This means that you will only have to pay for the functional features that you need. Retrofitting of features is easy by uploading new firmware and software from a standard PC.


FEATURES
Full hierarchical mode support

SFN and MFN support

Near seamless switching between inputs

Superior MER performance

Outstanding linear and non-linear digital pre-correction

Web browser and SNMP remote control




Player Functionality
CHANNEL SELECT
Tunable to any UHF/VHF or cable channel.

LEVEL
Lets you adjust the RF level of the output for receiver stressing.

PLAY LIST RECALL
Will recall to the unit display and list of programs stored in the unit and on the DVD drive.

PLAY
Starts the selected program. The vacuum fluorescent display provides the program name, duration, channel, RF
level, and percent of content played.

RECORD
Activates the unit's ability to capture a video data stream.




Player Functionality
Signal processing

-Supported modes
-IFFT: 2K, 8K
-Guard intervals: ?, 1/8, 1/16, 1/32
-Code rates: ?, 2/3, ?, 5/6, 7/8
-Constellations: QPSK, 16-QAM, 64-QAM
-Network mode: MFN
-Bandwidth: 8MHz and 7MHz
-8MHz, 7MHz and 6MHz

Electrical specifications:

Inputs
* MPEG-2: Two ASI inputs, BNC 75ohm (four ASI inputs with option O-1002 installed)
* Clock reference (carrier frequency and SFN timing):
-Connector: BNC
-Frequency: 10MHz
-Level: 100mV-3Vpp
-Impedance: 50ohm/>1kohm, user selectable
* Time reference (SFN timing):
-Connector: BNC
-Frequency: 1 PPS
-Level: 0-5V
-Trigger: Positive transition
-Impedance: 50ohm/>1kohm, user selectable
Output (standard version):

* IF output:
-Connector: BNC 50 ohm
-Centre frequency: Adjustable 35-37MHz in steps of 1Hz
-Frequency stability: Intern ref 1ppm / or in accordance with extern ref accuracy
-Spectrum polarity: Inverted and non-inverted selectable via front panel menu
-Level: +6dBm (adjustable +2/-8dB)
-Stability: ±0,2dB
-Return loss: >26dB
-Spectrum outside bａnd (note 1):
+/-3,8MHz: 0dB
+/-4,25MHz: <48dB
+/-5,25MHz: <56dB
-Harmonics and spurious: <60dB relative to the total output power
-MER: designed to meet 45dB
Output (Option O-1001):

-IF output: As for standard version except centre frequency fixed 36MHz.
-RF output:
-Connector: N50 ohm
-Centre frequency: Adjustable 301000MHz in steps of 1Hz
-Frequency stability: Intern ref 1ppm / or in accordance with extern ref accuracy
-Spectrum polarity: Inverted and non-inverted selectable via front panel menu
-Level: +0dBm (adjustable +0 /-10dB)
-Stability: ±0,5dB
-Return loss: >16dB
-Spectrum outside bａnd (note 1):
+/-3,8MHz: 0dB
+/-4,25MHz: <47dB
+/-5,25MHz: <53dB
-Harmonics and spurious: <-50dBm below 1GHz
-MER: designed to mee40dB