Globalstar STINGR User Manual page 6

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Messages are composed of 1 or more 9-byte payloads. The

payloads greater than 9 bytes will require multiple on

payloads greater than 9 bytes will require multiple on-air packets to be transmitted for each user payload.

There are brief periods of time where there is no satellite in range of the simplex transmitters due to obstructions

and/or satellite coverage geometry. Since a simplex device has no way of knowing if a transmitted message has been

satellite coverage geometry. Since a simplex device has no way of knowing if a transmitted message has been

successfully received, the STINGR device is designed to

sent over the Globalstar network. The default value for the number of redundant transmissions

sent over the Globalstar network. The default value for the number of redundant

means that each message sent to the STINGR

data payload. The redundant transmissions

The redundant transmissions of each message will be sent on a randomized 5-minute

The transmission sequence for a single-packet message using the default setting of 3 redundant

below.

Revision 0.2

06/24/15

Revision 0.2

Figure 3

byte payloads. The STINGR can only transmit 9-byte on

here there is no satellite in range of the simplex transmitters due to obstructions

device is designed to send multiple (redundant) transmissions

STINGR will be transmitted 3 times. Each transmission will contain the exact same

packet message using the default setting of 3 redundant transmissions is shown

packet message using the default setting of 3 redundant

Subject To Change without Notice

STINGR Users Manual

Simplex Messaging

to be transmitted for each user payload.

multiple (redundant) transmissions for each message being

ach transmission will contain the exact same

byte on-air messages, so user

transmissions per message is 3. This

minute nominal interval.

P a g e

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