On page 16 of the KPA500 manual, the K3 cable pinout doesn't seem to
include the AUXBUS pin. I assume that's an error in the manual?
Also, how much benefit is there to including band-data from the K3? I
already have Y-adapters to share the ACC connectors between
band-decoders and FSK interfaces.... trying to plan ahead for
something to incorporate the KPA-500, if necessary. Daisy-chaining Y's
doesn't really seem appealing ;)
~iain / N6ML
On Wed, Apr 6, 2011 at 5:32 PM, Eric Swartz - WA6HHQ, Elecraft
<e...@elecraft.com> wrote:
> Is part of a proprietary signaling protocol on the auxbus line in the cable.
>
> 73, Eric
>
>
> On 4/6/2011 10:20 AM, Joe Subich, W4TV wrote:
>>> It also feeds back KPA500 status to the K3, which allows the K3 to
>>> change between two user set power levels when the amp is in-line or
>>> in standby. (Say 30-45W to drive the amp, and 100W when the amp is
>>> bypassed.)
>> Is this done by a contact closure (e.g., DIGIN), AuxBus or CAT?
>> Access to the interface/API would be of value for use with other
>> amplifiers or perhaps tuner. I can think of a couple places to
>> use the information.
>>
>> 73,
>>
>> ... Joe, W4TV
>>
>>
>> On 4/6/2011 1:08 PM, Eric Swartz - WA6HHQ, Elecraft wrote:
>>> Answers below
>>> 73, Eric
>>> ---
>>> On 4/6/2011 9:49 AM, Mike Fatchett wrote:
>>>> The manual describes an optional cable availabe from Elecraft but it is
>>>> not in the price list. I have a K3 and P3. Is the cable part of the
>>>> kit or the assembled amp?
>>> -- It is an optional cable since it is only applicable to the K3.
>>> I'll get it up on the
>>> order form ASAP. (We're running hard this morning! :-)
>>>
>>> Also note that the KPA500 will auto band-switch with just RF
>>> and PTT , following
>>> the K3 and most other rigs in about 10-15 ms of 1st TX. The
>>> AUX cable provides
>>> amplifier band switching prior to TX, and also allows the
>>> dedicated band buttons
>>> on the KPA500 to control K3. It also feeds back KPA500 status
>>> to the K3, which
>>> allows the K3 to change between two user set power levels when
>>> the amp is
>>> in-line or in standby. (Say 30-45W to drive the amp, and 100W
>>> when the amp
>>> is bypassed.)
>>>> Can we purchase the European AC cord as it might be handy for those who
>>>> travel abroad.
>>> Yes, I'll add this to the order form at the same time. (in the
>>> next 15 minutes.)
>>>> Mike W0MU
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