AT3900USB with on board CF Card
iModulate

DVB-S2X, DVB-S2/S & DVB-DSNG

Includes ReMux Function

Up-converter with IF & RF outputs

DVB-ASI/SPI inputs & Output

Modulates TS files from USB, DVB-ASI input,
Flash Memory or an IP Source

QPSK Modulator and UHF Up-converter, supports DVB-S2X, DVB-S2, DVB-S & DVB-DSNG.
Re-Mux function to reduce bitrate for trans-modulation.
On board Compact Flash Memory to play Transport Streams without a need for an external source.
Stand alone operation. No PC needed. Modulation of TS files from On Board CF or External DVB-ASI source.
High Speed USB 2.0
Windows Drivers + SDK & Linux Drivers.
Accompanied by DVSStation4 Alitronika’s Application Software.
Supports Standards ETSI EN302307-2, ETSI EN302307-1, and ETSI EN103129.
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-S2 : up to 200.385 MBit/s.
– DVB-S : up to 72.574 MBit/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 AT3900USB 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.
The 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 internal memory of the AT3900USB. 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 Transport Streams, having RF ( 950 to 2150MHz ), 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

APPLICATIONS

Targeted for Digital Video Professionals, Sophisticated End Users and OEMs the AT3900USB is an ideal solution for a number of applications such as:

Development Tools for DVB-S2/S Receiver R&D.
IP to DVB Gateway.
DVB-S2/S Transport Stream Generation.
Stand alone QPSK signal generator for Test & Validation.
Demonstration and Trade Shows.
DVB-S2/S output for OEM product.

SPECIFICATIONS

On Board Buffer:16 Mbytes.
IF Connector:75 Ohms.
IF Output Frequency:49-51 MHz or 99-101MHz adjustable in 1Hz steps.
IF Output Power over bandwidth: -10dBm.
RF Connector:75 Ohms F-Type.
RF Output Frequency Range:950MHz to 2150MHz.
RF Output Power over bandwidth:-10dBm to -45dBm, adjustable in 0.5dB steps.
DVB modes: DVB-S and DVB-S2.
Spectral modes: inverted and non-inverted.

DVB-S Mode:

Alpha rolloff: 0.35.
Modulation Modes:QPSK.
FEC Code Rates: 1/2, 2/3, 3/4, 5/6 and 7/8.S
ymbol rate:up to 45 MSymbols/s.
Bitrate: up to 72.574 MBit/s.

DVB-S2 & DVB-S2X Mode:

Alpha rolloff: 0.20, 0.25 and 0.35.

Modulation Modes:

DVB-S: QPSK
DVB-S2: 8SPK, 16APSK and 32APSK.
DVB-S2X: 8, 16, 32, 64, 128 and 256APSK.
FEC Code Rates: 1/4, 1/3, 2/5, 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 8/9 and 9/10.
FEC Code Rates: 1/4, 1/3, 2/5, 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 8/9 and 9/10.
Symbol rate:up to 45 MSymbols/s.
Bitrate:up to 200.385 MBit/s.

DVB-DSNG Mode:

Alpha rolloff: 0.20, 0.25 and 0.35.
Modulation Modes:8SPK and QAM16.

DVB-ASI/SPI Spec.

DVB-ASI Input Connectors:75 Ohms BNC.
DVB-ASI Input return loss: 15dB.
DVB-ASI Output Signal level:1.0Vp-p nominal.
DVB-ASI Output Clock: 270 MHz.
DVB-ASI Input return loss: 15dB.
DVB-SPI Connector: 25-pin sub-D.
DVB-SPI Input Level: LVDS.

APPLICATION SOFTWARE

DVSStation3/4/IP: 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.