I found in ShipPlotter forum the announce of the new SR161 AIS
receiver.
See details in the site below. Now the NASA/Si-Tex AIS engine have a
competitor.

http://www.yte.com.cn/


The folowing is the specifications:

Name SR161 low cost AIS receiver Brand SR Country of Origin China
Product Description The SR161 is a low cost AIS receiver, designed
specifically for the Leisure Marine and Fishing Boat market.
The Smart Radio SR161 AIS Receiver provides:
=B7 High-sensitivity AIS data reception
=B7 Affordable low price
=B7 Hears Class A & B vessel reports
=B7 Sends the information to be mapped on a PC or chart-plotter
=B7 Receiving frequencies can be preprogrammed
=B7 When detecting interference in the receiving channel,automatically
switch to alternative ais channel
=B7 Very low power consumption
The Smart Radio SR161 is an easy to install, stand alone marine
receiver that monitors the channels assigned to the Automatic
Identification System, or AIS.
AIS reports:
=B7 VESSEL'S NAME - up to 20 characters
=B7 SIZE - dimensions and draught of the ship
=B7 POSITION - provided by differential GPS
=B7 COURSE - relative to true North to 1/10th degree
=B7 CARGO - table of possibilities available
=B7 AND MORE
When attached to a VHF antenna optimized at 162Mhz, the SR161's
serial data output will drive most popular marine charting software
packages available today. The output provides the location of all AIS
transponders within receiving range.
Information gathered by the Smart Radio SR161 is more detailed than
radar and provides the everyday boater with the same information
afforded to commercial vessels. Now you can see what's coming on your
PC or chart-plotter long before it is in your line of sight.
The Smart Radio SR161 allows AIS enabled software to chart ship
positions and descriptions in real-time.
The following packages have been tested and are fully operational with
the SR161:
=B7 Rose Point - Coastal Explorer
=B7 ICAN - Regulus
=B7 Transas - NaviSailor
=B7 Xanatos - Titan
=B7 Nobeltec - Admiral
=B7 EuroNav - seaPro
=B7 YACHT - AIS
=B7 SEACLEAR
Electrical
Power supply range : 9 - 15 Volts DC
Power consumption : 1W
Output
Baud rate : 38400 default(software selectable)
Format : ITU/ NMEA 0183
Output message : VDM
Receiver
Frequency : AIS1 161.975 MHz
AIS2 162.025 MHz default(software programmable to other
frequencies),dual channel scan receiving.
Channel spacing : 25KHz
Sensitivity : -116dBm
Demodulation : GMSK
Data Rate : 9600
Antenna impedance : 50 ohms
Physical
Dimensions : Length: 115mm, Width: 75mm,
Height: 28mm
Weight : 400g
Connectors : Antenna BNC
Output port: 9 pin D socket
Export Markets World Market Pricing $200 usd (promotional period)
Payment Details T/T prepaid Min Order 1 unit Ship Date one week
Standard Met itu1371-1,61993,61162