Communication & Signaling Decision Flowchart
Step 1: Do You Need to Communicate?
➡ Yes, for a routine check-in → Proceed to Step 2.
➡ Yes, for an emergency → Proceed to Step 3.
➡ No → Continue normal activities but keep devices charged and accessible.
Step 2: Non-Emergency Communication
➡ Can you use a cell phone or satellite communicator?
☐ Yes → Send a check-in message or update.
☐ No → Use a two-way radio (if applicable) or leave a written note at a designated check-in location.
✔ Check-in Complete? → Proceed with planned activities, ensuring next contact point is noted.
Step 3: Is This an Emergency?
➡ Yes, but not life-threatening (e.g., lost but safe, minor injury) → Proceed to Step 4.
➡ Yes, life-threatening (e.g., severe injury, unable to self-evacuate) → Proceed to Step 5.
Step 4: Seeking Assistance for Non-Life-Threatening Situations
☐ Try to self-navigate back to a safe location using a map, compass, or GPS.
☐ Use a satellite communicator or two-way radio to request assistance.
☐ If no response, prepare passive signals (bright clothing, mirror flashes, ground markers).
✔ Situation Resolved?
➡ Yes → Reassess route and proceed cautiously.
➡ No → If the situation worsens, move to Step 5.
Step 5: Initiating Emergency Rescue
☐ Activate SOS on a satellite communicator or PLB if available.
☐ Use whistle (three blasts), mirror, or flashlight signals if rescuers may be nearby.
☐ Create visible ground signals (SOS with rocks or logs).
☐ Conserve energy, stay in one place unless moving improves your chance of survival.
✔ Rescue Signals Sent? → Monitor response and prepare for potential rescue.
Step 6: Final Actions & Battery Management
☐ Preserve battery life—turn off unnecessary devices, limit GPS use, enable airplane mode.
☐ Stay calm—follow step-by-step actions to avoid panic.
☐ Keep signaling at regular intervals (e.g., whistle every 30 minutes, light flashes at night).
✔ Final Check: Are you using all available resources to communicate effectively and ensure a safe outcome?
Communication & Signaling Decision Flowchart
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