Stand alone, Multi-standard Modulator including Re-Mux function
Supports DVB-T/H/C ( QAM-A/B/C ), ATSC 8-VSB & ISDB-T
VHF & UHF Up-converter
IF & RF outputs, DVB-ASI input & output
Can modulate TS files from USB,
external DVB-ASI/SPI, an
IP source or on-board
Combined COFDM, QAM & ATSC Modulator with VHF & UHF
Upconverter, supports DVB-T/H/C, QAM-A/B/C, ATSC-8-VSB and ISDB-T.
|| Standard Features:
function to reduce bitrate for trans-modulation.
Compact Flash Memory to play Transport Streams without a need for an
alone operation. No PC needed. Modulation of TS files from On Board
CF or External DVB-ASI source.
High Speed USB 2.0
XP, Vista, Windows 7 & Windows 10 Drivers + SDK & Linux
Accompanied by DVSStation4 Alitronika's Application Software.
Supports DVB According to Standard A1010 Rev1 and EN50083.
Modulation of Transport Stream files from Harddisk.
Modulation of Transport Stream from the ASI
All modulation processes are carried out by the hardware so that
there is no load on the PC processor,
So there is no need for an expensive high performance
Supports Burst or continuous modes, 188 and 204 packet sizes.
- DVB-T/H : 4.98 MB/s to 31.67 MB/s.
- DVB-C : 14 MB/s to 65 MB/s.
- ATSC : 10.76 MBaud to 19.30 MBaud.
- ISDB-T: 416 KB/s to 16.85/MB/s
IF ( I
& Q ) Outputs.
DVB-ASI output for monitoring the modulated TS file.
Modes of operation
In this mode the AT3780USB operates just as a standard USB based
device. The Modulation and IF/RF parameter can be set via the
application software, DVSStation4. The Transport Streams could be entering the
device via the USB interface or via an external DVB-ASI source.
A Re-Mux function could be used to Filter out
unwanted PIDs to reduce the bitrate of the TS file or the Incoming
DVB-ASI Transport Streams.
Stand alone Mode
In this mode the device no longer requires a
PC for its operation. Any Transport Streams from the DVB-ASI input is
modulated according to the parameters set by the user. The
modulation, IF & RF parameters are stored on the one board
memory of the AT3780USB. These parameters could be changed by the user
at any time via the USB or RS232 interfaces.
If there are no incoming DVB-ASI streams, the device modulates from
the TS files recorded on its ON BOARD COMPACT FLASH memory.
In this mode of operation, it is possible to have UNINTERRUPTED modulations of a MPEG
Transport Streams, having RF ( 50 to 850MHz ), IF ( both I & Q
DVB-ASI outputs available at the SAME TIME, 24 Hours a day, 7 Days a
week without a PC.
|| Block Diagram:
Targeted for Digital Video Professionals, Sophisticated End Users and OEMs
AT3780USB is an ideal solution for a number of applications such as:
Development Tools for
DVB-T/H/C Receiver R&D.
IP to DVB Gateway.
Transport Stream Generation.
COFDM ( Terrestrial ), QAM ( Cable TV ), ATSC 8-VSB & ISDB-T signal generator for Test & Validation.
Demonstration and Trade
& ATSC output for OEM product.
On Board Buffer:
75 Ohms BNC.
IF Output Frequency:
35-37 MHz or 69-71MHz adjustable in 1Hz steps.
75 Ohms BNC.
RF Output Frequency Range:
50MHz to 1000MHz.
RF Output Power over bandwidth:
+2dBm to -35dBm, adjustable in 0.5dB steps.
Channel Bandwidth: 5MHz, 6MHz, 7MHz, 8MHz.
2k,4k and 8k carriers non-hierarchical.
Standards: COFDM according EN 300 744.
QPSK, 16QAM and 64QAM.
Guard Interval Modes:
1/32, 1/16, 1/8 and 1/4.
FEC Code Rates:
1/2, 2/3, 3/4,5/6, 7/8.
Inversion: Both inverted and non-inverted.
Channel Bandwidth: 6MHz, 8MHz.
QAM according EN 300 744.
16QAM, 32QAM, 64QAM, 128QAM and 256QAM.
ATSC 8-VSB Spec.
Channel Bandwidth: 6MHz
Standards: ARIB STD-B31
DVB-ASI Input/Output Connectors:75 Ohms BNC.
DVB-ASI Output Signal level:1.0Vp-p nominal.
DVB-ASI Output Clock: 270 MHz.
DVB-ASIInput return loss: 15dB.
DVB-ASI Output Bit Rate: 0 to 214Mbit/s ( up to Max. allowable bitrate for DVB-T/H/C, ATSC modulation).
In Stand Alone mode bitrate is limited to 50MBit/s.
Alitronika devices are supported by DVSStation3/DVSStation4 or DVSStationIP, Alitronika's FREE
Transport Stream Player, Recorder, Analyser and converter application software.
Please refer to the specification and User Manual of these applications for more information.
Even better please download them from our website and try them out. They works in DEMO mode without any Alitronika devices.
|| Application Software:
Play Screen=> In normal operating conditions
Record Screen => In normal operating conditions
DVB-T Guard Interval Settings
DVB-T Modulation Mode Settings
DVB-T FEC Settings
DVB-T Bandwidth Settings
IF output frequency is selectable between 35MHz & 70MHz
The application software provides the user with many functions & features such as :
Bit, Byte & Packet error insertion
TOT & TDT selection
PlayBack in loops, sub-loops.......
Hardware Working Regiters are accessable for monitoring
Among the "Goodies" are a Video Viewer
A DVB to IP Player/Converter
As well as the Integrated Quick TS Analyzer,
TSReader support these devices.
Accessories: The AT3780USB is
delivered with the following items, 2 power supply units, a power
cord, a USB cable, a 4MB CF card, a CF card reader, a set of 3
different RF adaptors.