Install flwrap by entering the following commands in the terminal:
sudo apt update sudo apt install flwrap
Description:
amateur radio file encapsulation/compression utility
Flwrap is a small desktop application that encapsulates a text file, an image file, or a binary file within a set of identifier blocks. Flwrap is designed to be used to best advantage with fldigi but can be used with any digital modem program.
Homepage: http://www.w1hkj.com/
Version: 1.3.4-2.1build1
Section: universe/hamradio