[aprssig] Error checking within APRS packets

Jason KG4WSV kg4wsv at gmail.com
Sun Jun 19 07:57:01 EDT 2011

On Sun, Jun 19, 2011 at 3:08 AM, Max Harper <kg4pid at yahoo.com> wrote:

> What type of error checking does APRS have to prevent corrupt data?

APRS doesn't have any, but APRS is transmitted in AX.25 packets (on VHF,
anyway), and AX.25 has a 16 bit checksum (known as the FCS) to verify the

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