AT3780USB

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, or an IP source  

Standard Features:

Combined COFDM, QAM & ATSC Modulator with VHF & UHF Upconverter, supports DVB-T/H/C, QAM-A/B/C, ATSC-8-VSB and ISDB-T.
Re-Mux function to reduce bitrate for trans-modulation.
Stand alone operation. No PC needed. Modulation of TS files from an External DVB-ASI source.
High Speed USB 2.0
Windows XP, Vista, Windows 7 ( 64bit ), Windows10 Drivers + SDK & Linux Drivers.
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 input.
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 PC.
Supports Burst or continuous modes, 188 and 204 packet sizes.
Bitrates:
- 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
Input
DVB-ASI input. 
Output
RF Output.
IF ( I & Q ) Outputs.
DVB-ASI output for monitoring the modulated TS file.
Modes of operation
USB Mode
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.
The device modulates the incoming DVB-ASI streams.
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:

Connections:

Application:

Targeted for Digital Video Professionals, Sophisticated End Users and OEMs
the 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.
DVB-T/H/C & ATCS Transport Stream Generation.
Stand alone COFDM ( Terrestrial ), QAM ( Cable TV ), ATSC 8-VSB & ISDB-T signal generator for Test & Validation.
Demonstration and Trade Shows.
DVB-T/H/C & ATSC output for OEM product.

Specification:

General Spec.
On Board Buffer: 16 Mbytes.
IF Connectors: 75 Ohms BNC.
IF Output Frequency: 35-37 MHz or 69-71MHz adjustable in 1Hz steps.
RF Connector: 75 Ohms BNC.
RF Output Frequency Range: 50MHz to 1000MHz.
RF Output Power over bandwidth: +2dBm to -35dBm, adjustable in 0.5dB steps.
DVB-T/H Spec.
Channel Bandwidth: 5MHz, 6MHz, 7MHz, 8MHz.
COFDM Spectrum: 2k,4k and 8k carriers non-hierarchical.
Standards: COFDM according EN 300 744.
Modulation Modes: 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.
Spectral Inversion: Both inverted and non-inverted.
DVB-C Spec.
Channel Bandwidth: 6MHz, 8MHz.
Standards: QAM according EN 300 744.
Modulation Modes: 16QAM, 32QAM, 64QAM, 128QAM and 256QAM.
ATSC 8-VSB Spec.
Channel Bandwidth: 6MHz.
Standards: A/53 8-VSB.
ISDB-T Spec.
Channel Bandwidth: 6MHz
Standards: ARIB STD-B31
DVB-ASI Spec.
DVB-ASI Input/Output Connectors: 75 Ohms BNC.
DVB-ASI Output Signal level: 1.0Vp-p nominal.
DVB-ASI Output Clock: 270 MHz.
DVB-ASI Input return loss: 15dB.
DVB-ASI Output Bit Rate: 0 to 214 Mbit/s ( up to Max. allowable bitrate for DVB-T/H/C, ATSC modulation).

Application Software:

Play Screen=> In normal operating conditions

Record Screen => In normal operating conditions

ISDB-T Settings

ATSC Settings

DVB-C Settings

DVB-T Settings

DVB-T Guard Interval Settings

DVB-T Modulation Mode Settings

DVB-T FEC Settings

DVB-T Bandwidth Settings

Rf Settings

IF output frequency is selectable between 35MHz & 70MHz

The application software provides the user with many functions & features such as :

PID Filtering

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

Hex Editor

A DVB to IP Player/Converter

As well as the Integrated Quick TS Analyzer, TSReader support these devices.