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Published 20 hours ago • verified publisher icon lora-aprs

codingRate4

Open Vitaliy86 opened this issue 2 years ago • 1 comments

Why codingRate4 = 5

Maybe need used codingRate4 = 7 ?

Vitaliy86 avatar Jan 05 '23 07:01 Vitaliy86

The coding rate describes the ratio of actual data to error-correcting data added. The higher the value (valid from 5 to 8) the higher the amount of error-correcting data is added to the payload. The header is always transmitted with coding rate 4/8.

As iGate (in RX and explicit mode) there is no influence by this parameter. The iGate uses the value sent by the tracker. As Digi (in TX and explicit mode) it will send as per this parameter. The higher the value the longer takes the TX time.

In theory this provides better performance but has longer TX time. Therefore 4/5 is the recommended parameter.

Mane76 avatar Jan 21 '23 12:01 Mane76