http://elecraft.85.s1.nabble.com/KPA500-and-KAT500-Ports-tp6574422p6582403.html
other choice' available for other radios. If the tuner is currently on
> Why not just use two KRC2s? They are complete and shipping. :-)
>
> 73, Eric
>
> ---
> www.elecraft.com
>
>
> On 7/13/2011 4:22 PM, Brendan Minish wrote:
> > I think that 2 Antenna ports on the KAT500 is a good fit, after all 2
> > ports is what the K3 (+ATU) has so many of us have configured our
> > stations to work with this configuration
> >
> > I would suggest however that there be an (optional?) module (s) for the
> > KAT500 that provides for sink or source outputs, one per band (plus a
> > few more?) that can be further configured via software to to clever
> > things (like selecting 2 different antennas for 80/75m, or multiple
> > bands on one antenna )
> > It would be even nicer if this was duplicated for the second antenna
> > output either in the same module or as a second user installable module.
> >
> > These would be driven by the auxbus data that will presumably be fed to
> > the KANT500 and decoded by it's CPU anyway.
> > An input (per antenna port) that can be used to indicate to the KAT500
> > that the requested antenna is not available might also be a good idea so
> > that the KRC500 can then select the second choice on the other port
> > (complete with recalling the last used tunings for the secondary ) would
> > also be nice.
> >
> > Think of this as the functionality of (2x ?) KRC2's built in and it
> > would make for superb versatility since the KRC500 could then be
> > configured to automate pretty much any external automatic antenna
> > switching arrangement.
> >
> > I don't know if this is practical to fit into the box but it sure would
> > be nice.
> > The KRC2 may already form the basis for much of the required
> > circuitry/firmware.
> > The Sink/source outputs could be selected sink/source by internal jumper
> > and the output could be on DB15 or DIN connectors to minimise rear panel
> > real estate. (perhaps with pre-made breakout cable supplied )
> > Another option might be to have the 'Glue' internal to the KPA500 and
> > the Sink/source drivers in a 'dongle' to conserve internal space and
> > provide for easier breakout.
> >
> > 73
> > Brendan EI6IZ
> >
> >
> >
> >
> > On Tue, 2011-07-12 at 15:34 -0700, Eric Swartz - WA6HHQ, Elecraft wrote:
> >> Hi Gary,
> >>
> >> Having 4-5 RG8 antenna cables, plus the input cable, hanging out the
> >> back of the desktop ATU is both likely to pull the ATU off the desk, and
> >> will easily not fit in the box size we are planning. It also adds a lot
> >> of complexity and cost to the basic ATU in order to accommodate more
> >> connections with the needed isolation etc. We certainly do not want to
> >> price the ATU out of the range of most hams, or make it too large.
> >>
> >> Many of us use manual or automatic switches external to the amp / tuner
> >> to provide these functions.
> >>
> >> A much better solution for those needing more than two auto-selected
> >> antennas is to use an external relay switch box, controlled by the
> >> radio. This has the advantage of getting the cables, clutter, and
> >> switching network off the desktop and either under the table or outside.
> >> There are certainly a number of external antenna switches out there that
> >> can do this, but if we offered something that was tightly integrated
> >> with the K3 (and KPA500/KAT500) as a product, what features would be
> >> desirable? (Number of antennas, rigs inputs, switching options etc.)
> >>
> >> 73, Eric WA6HHQ
> >>
> >> ---
> >> www.elecraft.com
> >>
> >>
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