> On Jul 23, 2020, at 1:33 PM, Ed G <
[hidden email]> wrote:
>
> Hi Wayne,
> Will the future new KPA500 and KAT500 Auxbus protocol involve new hardware interface revisions, or would this just be a firmware update? I’m thinking if hardware, it is perhaps best to wait just a bit for the amp and tuner to be upgraded before buying?
> --Ed, N3CW—
>
>
>
> ------------------------------
> On Sun, Jul 19, 2020, at 1:52 PM, Wayne Burdick wrote:
>>> Those using a K4 transceiver with our KPA1500 amp will have the
>>> advantage of +/- 1 kHz resolution in VFO tracking. In many stations,
>>> this finer resolution will result in lower SWR and improved amplifier
>>> performance, especially on the lower bands. (The original resolution
>>> was +/- 8 kHz.)
>>>
>>> This is part an overall upgrade of our Auxbus control interface, taking
>>> advantage of the additional processing resources available in the K4.
>>> The revised protocol allows for more robust RFI rejection, as well as
>>> future enhancements to amp/tuner control.
>>>
>>> At present only the KPA1500 supports radio type K4, but we hope to add
>>> this capability to the KPA500 and KAT500 in the near future.
>>>
>>> All amps and tuners will continue to support the original Auxbus
>>> protocol, remaining 100% compatible with our existing transceivers.
>>>
>>> 73,
>>> Wayne
>>> N6KR
>
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