The em-trak A100 Class A will receive Message 17 data, provided it is in range of a base station outputting this information.
Message 17 is only transmitted by base stations and as such it is not transmitted by Class A devices.
The data contained in the message is used solely for correcting the location of the receiving unit (in this case the A100). This being the case, the received data is only used for the units own GPS receiver corrections. This (potentially) corrected information is then used in the receiving vessels A100 location.
It's also worth mentioning that whilst Class A equipment standards dictate that a Class A cannot receive corrections from SBAS satellites directly, the unit can still receive and accept a differentially corrected signal by:
- Connecting a DGPS beacon receiver to the DGPS port of the junction box
- Connecting an external GPS receiver that either has a built in DGPS receiver or has the ability to receive SBAS corrections
This information can then be used by the A100 and also output (as required) via the units Pilot and Serial connections.