Phil,
It's not absolutely necessary, but it's highly desirable. The AUX
cable gives you:
* Instant memory-tuning (and antenna selection!) on band change
(without needing to make any RF)
* No need for separate RCA cabling for amp-keying (it's included in
the AUX cable)
* Various planned K3 integration features, which rely on AUXBUS
You could certainly operate without it, but it would be sub-optimal,
Since you already have the rest of the "K-line", I think you really
want the complete solution, including the cable. You could make your
own cable, of course.....
73,
~iain / N6ML
On Fri, Oct 5, 2012 at 9:42 PM, Phil Hystad <phys...@mac.com> wrote:
> Eric,
>
> I have not been keeping up here but can you clarify what you are saying
> below. Here, let me ask: is this "additional" cable needed to use the KAT500
> with a KPA500 and K3 for all normal operating. I already placed my order for
> the KAT500 and I am wondering if I ordered enough stuff. I have the
> K3+P3+KPA500.
>
> 73, phil, K7PEH
>
>
> On Oct 5, 2012, at 9:26 PM, Eric Swartz WA6HHQ - Elecraft <e...@elecraft.com>
> wrote:
>
>> You will need to purchase an additional KPAK3AUX cable if you wish to send
>> band data in advance of TX from the K3 to the KAT500.
>>
>> 73,
>>
>> Eric
>>
>> www.elecraft.com
>> _..._
>>
>>
>>
>> On Oct 5, 2012, at 12:23 PM, Jim Sheldon <w...@cox.net> wrote:
>>
>>> I guess the question now becomes - Is that cable going to be supplied with
>>> the KAT500 or do I have to contact Elecraft and have an additional cable
>>> placed on the order I put in back in May, during the Dayton Hamvention?
>>> Been waiting patiently for that order to be filled so it would be nice to
>>> know if I have to order another cable before the KAT500 finally gets here.
>>>
>>> Jim Sheldon - w0EB
>>>
>>>> For a K-line, you'll want a 15-pin cable from K3 (after the Y) to
>>>> the KAT500
>>>> and another from the KAT500 to the KPA500. The KAT500 interrupts
>>>> the KPA500
>>>> key line in that cable during tune, and both the KAT500 and KPA500
>>>> observe
>>>> the K3's BAND0 thru BAND3 lines.
>>>>
>>>> If you aren't using a K3, then the KAT500, like the KPA500, can
>>>> sense band
>>>> changes by counting the Tx frequency.
>>>>
>>>> But it's very convenient to band switch the K3 and have the ATU and
>>>> amp
>>>> follow without requiring a transmission. The ATU switches to the
>>>> last-used
>>>> antenna on band switch (or to a fixed antenna you configure). It's
>>>> nice not
>>>> to have to send a "dit" to make that antenna switch happen.
>>>>
>>>> The manual is in progress.
>>>>
>>>> 73 de Dick, K6KR
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: elecraft-boun...@mailman.qth.net
>>>> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of DGB
>>>> Sent: Friday, October 05, 2012 11:54 AM
>>>> To: elecraft@mailman.qth.net
>>>> Subject: Re: [Elecraft] KAT500
>>>>
>>>> I have currently have a y-cable at the rig for the MH MKII and the
>>>> KPA-500.
>>>> How will the KAT-500 play into that? A Y-Cable on the KPA-500?
>>>> I see no manual for the KAT-500 yet!
>>>>
>>>> 73 Dwight NS9I
>>>> ______________________________________________________________
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