Hirokik via Elecraft <elecraft@mailman.qth.net> wrote:
> Is there a way to control a remote K3 station with KX3 just like you can do
> with K3 or K3/0 as a control unit? Has anyone tried?
> Hiroki
> AH6CY/OE1
Hi Hiroki,
Here's part of a posting I did on this topic last year:
> The front panels of the KX3 and K3 are quite different, so there can't
> be a 1-to-1 correspondence of KX3 controls remotely mapped to K3
> controls.
>
> That said, the KX3 does have the ability to do limited remote
> control of another KX3, K3, or even a K2. This feature is presently
> experimental and incomplete, but feel free to give it a try.
>
> NOTE: The KX3 *does not* implement the ultrafast rig-control protocol
> that is present in the K3 and K3/0. Instead, we created a moderately
> fast version of the traditional "autoinfo" mechanism (AI). What this
> means is that if you want the best remote-control performance, you
> should control a remote K3 with another K3 or a K3/0, not a KX3.
>
> Using the KX3 as a Controller:
>
> First, you'll need to connect the two rigs together somehow. The
> simplest method, and the one recommended for trying the remote-control
> feature, is to use a "null-modem" cable. For example if you're using
> two KX3s, connect their ACC1 jacks together using a 3-conductor cable
> that has the tip and ring connections cross-wired. If the remote rig
> is a K3 or K2, you can make a cable with a DE9 at that end and a 3.5
> mm plug at the KX3 end, again cross-wiring the RXD and TXD signals.
> You could also use the internet or even wiFi, with PCs or RemoteRig
> boxes as intermediaries, and we'll have an app note on that at some
> point.
>
> Next, go into the menu at the KX3 intended to be used as the
> controller and set AUTOINF to RIG CTRL. This puts the KX3 into a
> benign, no-transmit, no-RX-audio state, and causes most control
> changes to be sent to the remote radio. If the remote rig is a K3, its
> sub receiver is turned OFF by the KX3, since a KX3 front panel has no
> way to control the sub receiver yet. ("SUB" on the KX3 controls dual watch.)
>
> IMPORTANT: Audio in/out and CW keying are handled separately--not through the
> controller. That is, you can't
> use the local KX3's mic, phones, or key jacks; you have to either wire
> the corresponding devices to the remote rig directly, or provide
> dedicated media channels for these. The RemoteRig boxes do this. You
> connect the mic, key, and headphones directly to them, not to the
> controlling KX3 (or K3, or K3/0). At the remote end, these signals are
> then connected to the appropriate connectors on the K3 (etc.).
>
> In a future release we might be able to send CW or DATA from the controlling
> KX3 by embedding the characters in command packets, as well as allow
> the use of the MSG play buttons.
>
> At present the KX3 can control the following functions on a remote
> radio:
>
> VFO A
> VFO B
> Mode
> AF gain
> Filter BW (PBT on the KX3, WIDTH on the K3)
> RIT offset
> RIT clear
>
> We hope to greatly expand this set of functions in the future. But
> again, if you want full control of a remote K3, you'll need another K3 or
> a K3/0.
73,
Wayne
N6KR
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