CMX910 Class A and B AIS Baseband Processor

CMX991 RF Quadrature (I/Q) Transceiver

CMX7032/CMX7042 AIS Baseband Processors with RF Synthesisers

DE70321 CMX7032 Development and Demonstration Kit

CMX589A GMSK Modem

FX/MX604 V.23 Compatible Modem


CML AIS Products for Marine Safety
AIS Products for Marine Safety
CML has actively participated in the writing of the international standards for AIS as well as product development for AIS class A, Class B and 'receive only' products. CML offers a range of marine AIS product design services including:
  • AIS Class A and Class B Transceivers
  • AIS Rx only solutions
  • AtoN, AIS and SART solutions
  • CML offers a product design consultancy
Both I and Q and Limiter-Discriminator interfaces are catered for with auxiliary RF Synthesisers, System Clocks, ADCs and DACs available for complete support of the host system. All AIS timing, protocol and data formatting is carried out on-chip, relieving the host system of the majority of processing.

< < < < < Please use the links on the left to view the relevant product overviews

Available to Download:
Product Comparisons
Product AIS Class Rx/Tx Modes Modulation Interface Auxiliary Supply
CMX7032 B: (FI-1.x) AIS and DSC (Rx)
AIS (Tx)		 GMSK and FSK Limiter-Discriminator (Rx)
Two-Point Mod./
I and Q (Tx)		 RF Synthesisers
ADCs and DACs
System Clocks		 3.0 to 3.6 V
Rx Only:
(FI-2.x)		 AIS (Rx) GMSK Limiter-Discriminator (Rx) RF Synthesisers
ADCs and DACs
System Clocks		 3.0 to 3.6 V
CMX7042 FI-1.x B AIS and DSC (Rx)
AIS (Tx)		 GMSK and FSK Limiter-Discriminator (Rx)
Two-Point Mod./
I and Q (Tx)		 ADCs and DACs
System Clocks		 3.0 to 3.6 V
CMX910 A and B AIS and DSC (Rx/Tx) GMSK and FSK I and Q (Rx/Tx) ADCs and DACs
System Timing		 3.0 to 3.6 V
CMX589A General Purpose GMSK Modem IC 3.0 to 5.5 V
FX/MX604 FSK Modem IC 3.0 to 5.5 V
DE70321 Demonstration and Design Support for CMX7032

Example

The DE70321 DemoKit is a complete AIS Class B (IEC 62287) technology demonstrator aimed at speeding manufacturers' design and development of AIS Class B transponders and AIS receiver products using the CMX7032 AIS Class B Baseband Processor with RF Synthesisers IC. This compact PCB-based product measures 100mm x 112.5mm. This design is a flexible platform to allow users to configure and evaluate with two build options:
  • Class B Transceiver (using CMX7032 FI-1.x)
  • Dual Channel Rx-only (using CMX7032 FI-2.x)
  • Shipped Pre-loaded with FI-2.x - Dual Rx-only Demonstrator

For further technical details, please navigate to our Technical Datasheets area.
An example of an AIS working display is shown below.
Example of an AIS display DE70321 AIS DemoKit

Glossary

AIS Automatic Identification System. A radio-based system for tracking vessel position and other key information such as position, speed and heading.
AIS Class A Type of AIS Transponder used on large vessels.
AIS Class B Variant of AIS system designed to be lower cost and targeted at smaller vessels, including leisure craft.
AIS Transponder Radio Transmitter/Receiver unit that performs the AIS functions.
AtoN Aids to Navigation (e.g. Buoys, Lighthouses, etc.).
COG Course Over Ground: a maritime navigational parameter.
CS-TDMA Carrier Sense Time Division Multiple Access - system used in class B units instead of SoTDMA.
DSC Digital Selective-Calling - Data signalling system used as the primary emergency channel for marine communications.
ECDIS Electronic Chart Display and Information System.
EPFS Electronic Position Fixing System.
IEC International Electrotechnical Commission - Commission Electrotechnique Internationale.
IEC 61993 IEC Standard for AIS Class A.
IEC 62287 IEC Standard for AIS Class B.
IEC 62320 IEC Standard for Base-stations (AIS shore stations - Minimum operational and performance requirements - methods of test and required test results).
IMO International Maritime Organisation
ITU-R M1371 ITU-R Standard outlining the system parameters for AIS.
ITU-R M.493 ITU Standard for DSC.
MMSI Maritime Mobile Service Identity.
SoTDMA Self-organising Time Division Multiple Access - is the signalling scheme used in all AIS class A transponders.
VDL VHF Data Link.
VHF Very High Frequency: ITU band 8, generally accepted as the range: 30 to 300 MHz, that includes the maritime mobile band