I’ve recently introduced a Raspberry PI 4 as main remote RTX controller for my Kenwood TS-590s.
This allows me to control the Kenwood TS-590S from the iMac simultaneously with several applications, including RUMLOG, FLDIGI, WSJT-X.
Could not control simultaneously my transceiver directly from two or more applications. Additionally remote connection from the internet requires a PC always turned on or at least the possibilty to power on with wake-on-lan
The usage of the USB Port is exclusive
An alternative solution is to run the FLRIG on the iMac, and connect the applications to the local loopback 127.0.0.1.
What do you need
On the MAC you need to reconfigure the programs, in order to use FLRIG as Radio. Basically FLRG acts as a gateway to your radio.
On the Raspberry you need to configure the connection with the USB to Serial cable connected to the RS-232 port of the TS-590S.
If you have issues on selecting the USB Port or you have multiple one, check the status of the USB connections with lsusb command
pi@raspberrypi:~ $ lsusb Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 0d8c:013c C-Media Electronics, Inc. CM108 Audio Controller Bus 001 Device 005: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub