SAR pattern broadcast and receipt
SAR patterns can be broadcast and received using STEDs messaging. SAR patterns can be either managed or un-managed.
SAR patterns are broadcast at a 0.1 nm resolution. To ensure that SAR patterns appear the same on broadcaster and recipient MFDs, the Round patterns to nearest 0.1 nm option should be enabled in the Advanced set up menu () before the SAR pattern is created. This will ensure that SAR patterns are rounded to the nearest 0.1 nm when they are created.
Un-managed
When an un-managed SAR pattern is broadcast, it will be received by all responder vessels that are using the same STEDs passphrase.
When an un-managed SAR pattern is received, it can be imported and followed. Progress updates for un-managed searches will need to be manually reported using STEDs messaging.
Managed
When a managed SAR pattern is broadcast, it will be received by all responder vessels that are using the same STEDs passphrase. The broadcaster will assign themselves as Search Mission Coordinator (SMC) and assign a specific vessel as the Search and Rescue Unit (SRU). The SMC will receive automatic progress updates from the SRU.
When a managed SAR pattern is received, the SRU must accept the SAR pattern to import and initiate the managed search. The SRU will send automatic progress updates to the SMC. Non-SRU recipients will receive the SAR pattern and can import it for awareness and monitoring purposes.
The SMC will automatically receive progress updates from the SRU when the SAR pattern is:
Accepted
Rejected
Started (CSP reached)
Diverted from (started diversion away from SAR pattern)
Resuming (ended divert and travelling back to SAR pattern).
Resumed (reached point to resume the SAR pattern)
Completed
Aborted.