fcal - Calculates a best-fit straight line for calibration data

       Joe Taylor, K1JT.

fcal is Copyright © 2001 - 2019 by Joseph H. Taylor, Jr., K1JT, with contributions from additional
       authors. WSJT-X is Open Source software, licensed under the GNU General Public License (GPLv3).

       This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
       the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
       License for more details.

AsciiDoc 2.7.0                                     08/06/2025                                            FCAL(1)

fcal is one of suite of command line tools designed to aid frequency measurement. These tools are aimed
       at those taking part in the ARRL FMT, but are also useful for general frequency measurement and
       calibration. They are included within the WSJT-X package for use with the FreqCal mode of WSJT-X.

       The input FILE is normally the output of the fmtavg(1) tool, after adjusting to remove bad sources.

       Refer to https://physics.princeton.edu/pulsar/k1jt/FMT_User.pdf for detailed instructions.

       fcal - Calculates a best-fit straight line for calibration data

fcal [FILE]