Elecraft K3S firmware v4.46

MCU 4.46 /​ DSP 2.73

• REMOTE-RIG SUPPORT: One K3 can now directly control another, with one acting as nothing but a front panel. This "remote rig" mode provides a nearly perfect emulation of the remote K3's display and controls. (Previously, front panel emulation was limited by the K3's legacy command set.) The simplest way to use this is to connect the two K3s together using a "null modem" cable at the RS232 ports. However, by using a computer or a third-party hardware as an intermediary, it's possible to control a K3 over the internet or even a wiFi connection.

Note that the controlling K3 can have a totally different configuration from the remote K3.

It could be a K3/10 with no options, for example, yet it could still control a remote K3 with all options, including sub recei​ver, KPA500, etc.

To use Remote-Rig mode, set both K3s to 38.4 kb and connect them together via the RS232 ports (possibly using an intermediary device).

Next, at the local K3, hold CONFIG until you see "TERM" on VFO B.

If the remote K3 is listening, the TERM message will be replaced with a display that looks exactly like the remote K3's.

From then on, the remote K3 can be controlled by the local one (the remote K3 can still be controlled with its own front panel, too).

The local K3's audio will be muted.

Both receive and transmit audio must be handled by the intermediary device.

To exit Remote-Rig mode, hold CONFIG on the local K3 until you see "NORM" flashed on VFO B.

The local K3 will return to normal operation.