Knowledge Base > SPOT Gen4 > Messaging > How do I know that the message was sent?

How do I know that the message was sent?


When you send a message from your SPOT Gen4 the flashing LEDs indicate whether or not satellite communications are successful.  Green flashing LEDs indicate that your device has successfully acquired your location and the SPOT is sending a message.  Red LEDs indicate a communication error.  If you receive red flashing LEDs, we recommend transmitting your message from a different location.  

The SPOT Gen4 is a one way communication device.  The LED lights indicate the transmission state of the device and message delivery to the SPOT gateway for delivery, but it does not guarantee message delivery to your recipient.  

To ensure optimal performance of your device while transmitting a message, please see tips below:
  • The SPOT device requires a clear view of the sky to obtain a GPS signal and provide the most accurate location information. It is not reliable indoors, in a cave, or in very dense woods.
  • The SPOT logo on your device must be facing toward the sky.
  • Keep the device at least 12 inches away from other GPS devices as other GPS devices can interfere with the signal reception of the SPOT device.
  • When sending a Check In or custom message, keep the device powered on for at least 20 minutes for the completion of transmission cycle.
  • Please use lithium batteries for all SPOT devices.
  • If you receive any red LED lights while attempting to transmit a message, please try sending your message from a different location.