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Flwrap allows you to transmit a text message, image, or binary file to either single or multiple stations and allow each receiving station to verify that the transmission was received without error.
The program encapsulates a text file, an image file, or a binary file within a set of identifier blocks.
These blocks include a 16 bit checksum that is used to test the encapsulated file for integrity. Flwrap is designed to be used to best advantage with fldigi but can be used with any digital modem program.