I would try the 25' to 30' AUX cable. It will probably work fine. AUXBUS
is only used for automatically setting drive power ("KPA1500 OPER"
messages) and recognizing band buttons being pressed on the amp, which you
will not be doing, plus rig frequency setting the KPA1500 tuner to the
right segment, though RF-sensing can work for that too. If you don't use
the tuner much, or If AUXBUS gives trouble, change radio type from K4 to
BCD, and use the same long AUX cable. If that doesn't work, a long RS-232
to 3.5mm TRS cable can be used to track K4 frequency.
A long ethernet or a WiFi to Ethernet extender will provide KPA1500 Remote
software connection capability, though you may want to set up your Router
to assign a fixed IP address to the KPA1500. KPA1500 Firmware updates
still require a local USB cable, but you can temporarily use a WiFi-enabled
laptop for that.
73,
Bob, N6TV
On Thu, Jun 2, 2022 at 5:04 PM <li...@w2irt.net> wrote:
> I'm not familiar with CAN-bus. How can I easily implement this in my
> setup? End result is I want two way CAT control -- amp gets band/frequency
> data from the radio, KPA-1500 remote app gets SWR and power from the amp to
> display on the PC and control the power switch and standby/operate from the
> remote app.
>
> - pjd
>
> -----Original Message-----
> From: jerry <je...@tr2.com>
> Sent: Thursday, June 2, 2022 3:20 PM
> To: li...@w2irt.net
> Cc: 'Jack Brindle' <jackbrin...@me.com>; 'Elecraft Reflector Reflector' <
> elecraft@mailman.qth.net>
> Subject: Re: [Elecraft] Relocating my KPA-1500 - need cable
>
> On 2022-06-02 11:23, li...@w2irt.net wrote:
> > I hadn't considered that! Is there a preferred way of doing this over
> > longer distances? I'm sure I'm not the only person who's needed to
> > remote the amp.
> >
> > - pjd
>
> As a homebrew project, if you want "robust" and "just works", it's hard to
> beat CAN-bus. A quick Google confirms that for a baud rate of 250K, it
> will work up to
> 820 feet.
>
> - Jerry KF6VB
>
>
>
>
> >
> > -----Original Message-----
> > From: elecraft-boun...@mailman.qth.net
> > <elecraft-boun...@mailman.qth.net> On Behalf Of Jack Brindle via
> > Elecraft
> > Sent: Thursday, June 2, 2022 12:30 PM
> > To: Elecraft Reflector Reflector <elecraft@mailman.qth.net>
> > Subject: Re: [Elecraft] Relocating my KPA-1500 - need cable
> >
> > Using a network connection would be a very good idea. Auxbus is not
> > meant to go 20 feet, and indeed will probably fail at that distance.
> > Thus using an alternate method to get frequency info to the amplifier
> > would be a good idea.
> >
> > 73,
> > Jack, W6FB
> >
> >
> >> On Jun 2, 2022, at 10:34 AM, David Decoons <rocke...@gmail.com> wrote:
> >>
> >> Hi Peter,
> >>
> >> Contact Bob, N6TV. He can make good quality DB 15 cables that are
> >> shielded.
> >>
> >> Let me know when you are ready and I can help. Also you can do it as
> >> we discussed on the phone via the network, running a CAT 6 cable.
> >>
> >> Call me if you have questions.
> >>
> >> 73
> >> Dave wo2x
> >>
> >> Sent from my iPad
> >>
> >>> On Jun 2, 2022, at 11:12 AM, li...@w2irt.net
> >>> <mailto:li...@w2irt.net>
> >>> wrote:
> >>>
> >>> I need to move my KPA-1500 into the basement, and I've got an
> >>> electrician coming to put in the new outlet next week. But the only
> >>> tricky issue now is finding the correct cable to run to the amp from
> >>> my Y-Box to provide frequency/band data, etc. I will need a cable
> >>> run of about 20 feet, which will need to run behind the wall, down
> >>> into a crawlspace, then through a concrete wall to the new rack.
> >>>
> >>> With sub-optimal eyesight and shaky hands, I'm not sure I'd by much
> >>> good making one, but if they're not available easily in the
> >>> aftermarket I guess I can give it a shot. Does anybody know where to
> >>> find a pre-made ~20ish foot long cable, or if not, (a) what pinouts
> >>> do I need, (b) where to source the correct cable to do this
> >>> properly, and (c) what connectors-I'm guessing DB15M and DB15F?
> >>>
> >>>
> >>> ----------------------------------------------------
> >>>
> >>> Regards,
> >>> Peter Dougherty, W2IRT
> >>>
> >>> DXCC Card Checker/CQ-WAZ Checkpoint
> >>>
> >>> www.facebook.com/W2IRT
> >>>
> >>>
> >>>
> >>> ______________________________________________________________
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