Chuck,

Thanks for your response!

I guess I solved the "No such file" error by changing to the Desktop directory where the archive was located. I now, however, receive error messages about the dependencies being wrong as follows:

ewilson100@zoemonster:~/Desktop $ sudo dpkg -i wsjtx_2.6.0-rc3_arm64.deb
(Reading database ... 114767 files and directories currently installed.)
Preparing to unpack wsjtx_2.6.0-rc3_arm64.deb ...
Unpacking wsjtx (2.6.0-rc3) over (2.6.0-rc3) ...
dpkg: dependency problems prevent configuration of wsjtx:
wsjtx depends on libc6 (>= 2.34); however:
Version of libc6:arm64 on system is 2.31-13+rpt2+rpi1+deb11u3.
wsjtx depends on libstdc++6 (>= 11); however:
Version of libstdc++6:arm64 on system is 10.2.1-6.

dpkg: error processing package wsjtx (--install):
dependency problems - leaving unconfigured
Processing triggers for gnome-menus (3.36.0-1) ...
Processing triggers for mailcap (3.69) ...
Processing triggers for desktop-file-utils (0.26-1) ...
Errors were encountered while processing:
wsjtx
ewilson100@zoemonster:~/Desktop $

I am not sure how to update the indicated files to the version that wsjtx requires, so any assistance would be appreciated.

Ed, K0KC