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KPA-500 questions

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w0mu

KPA-500 questions

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?

Can we purchase the European AC cord as it might be handy for those who
travel abroad.

Mike W0MU
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David Pratt

Re: KPA-500 questions

In a recent message, Mike Fatchett <[hidden email]> writes
>
>Can we purchase the European AC cord as it might be handy for those who
>travel abroad.

Bear in mind, Mike, if you travel to the UK you will need yet a
different cord. In Great Britain with have a different power plug to
mainland Europe.

Perhaps UK purchasers of the KPA-500 will get a discount. ;-)
--
+ - - - - - - - - - - - - - - - - +
| David M Pratt, Kippax, Leeds. |
| Website: http://www.g4dmp.co.uk |
+ - - - - - - - - - - - - - - - - +

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Eric Swartz - WA6HHQ

Re: KPA-500 questions

Administrator

In reply to this post by w0mu

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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Joe Subich, W4TV-4

Re: KPA-500 questions

> 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
>> ______________________________________________________________
>>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

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David Christ

Re: KPA-500 questions

In reply to this post by David Pratt

It should be no problem to get the cord you need. From the photo it
appears that the end of the power cable is a standard IEC C13 female
plug connector as used on so many computers and other electronic
devices. A quick search on Google or your favorite supplier should
let you find the cord you need. Or the adaptor you need.

The comment on UK is significant. I know that a lot of UK power
cords have a fuse in the plug.
<http://en.wikipedia.org/wiki/BS_1363 > I would expect that it would
be prudent to verify that the fuse is the correct size for the device
and that you have spares.

I think they do some of their premises wiring quite different from US
practise. Specifically the ring circuit
<http://en.wikipedia.org/wiki/Ring_circuit> which can deliver a very
high current.

Perhaps our friends over the pond can provide accurate and definitive
information

David K0LUM.

At 5:57 PM +0100 4/6/11, David Pratt wrote:

>In a recent message, Mike Fatchett <[hidden email]> writes
>>
>>Can we purchase the European AC cord as it might be handy for those who
>>travel abroad.
>
>Bear in mind, Mike, if you travel to the UK you will need yet a
>different cord. In Great Britain with have a different power plug to
>mainland Europe.
>
>Perhaps UK purchasers of the KPA-500 will get a discount. ;-)
>--
> + - - - - - - - - - - - - - - - - +
> | David M Pratt, Kippax, Leeds. |
> | Website: http://www.g4dmp.co.uk |
> + - - - - - - - - - - - - - - - - +

Eric Swartz - WA6HHQ

Re: KPA-500 questions

Administrator

In reply to this post by Joe Subich, W4TV-4

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
>>> ______________________________________________________________
>>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

Eric Swartz - WA6HHQ

Re: KPA-500 questions

Administrator

In reply to this post by David Christ

This is correct. We use a standard IEC connector in our rear power
module, which also provides RF filtering etc.

We also supply fuses with the power cords.
3AG 12A fuse for 100-125V use. Our 110V cord uses 14 ga wire.
3AG 6A for 200-250V with the PWR-EU2P cable. That cord can use 16 or 18
ga wire, since the current is less.

If you buy your cord there make sure to get the correct fuses too.

73, Eric

On 4/6/2011 10:30 AM, David Christ wrote:

> It should be no problem to get the cord you need. From the photo it
> appears that the end of the power cable is a standard IEC C13 female
> plug connector as used on so many computers and other electronic
> devices. A quick search on Google or your favorite supplier should
> let you find the cord you need. Or the adaptor you need.
>
> The comment on UK is significant. I know that a lot of UK power
> cords have a fuse in the plug.
> <http://en.wikipedia.org/wiki/BS_1363> I would expect that it would
> be prudent to verify that the fuse is the correct size for the device
> and that you have spares.
>
> I think they do some of their premises wiring quite different from US
> practise. Specifically the ring circuit
> <http://en.wikipedia.org/wiki/Ring_circuit> which can deliver a very
> high current.
>
> Perhaps our friends over the pond can provide accurate and definitive
> information
>
> David K0LUM.
>
> At 5:57 PM +0100 4/6/11, David Pratt wrote:
>> In a recent message, Mike Fatchett<[hidden email]> writes
>>> Can we purchase the European AC cord as it might be handy for those who
>>> travel abroad.
>> Bear in mind, Mike, if you travel to the UK you will need yet a
>> different cord. In Great Britain with have a different power plug to
>> mainland Europe.
>>
>> Perhaps UK purchasers of the KPA-500 will get a discount. ;-)
>> --
>> + - - - - - - - - - - - - - - - - +
>> | David M Pratt, Kippax, Leeds. |
>> | Website: http://www.g4dmp.co.uk |
>> + - - - - - - - - - - - - - - - - +
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

Iain MacDonnell - N6ML-2

Re: KPA-500 questions

In reply to this post by Eric Swartz - WA6HHQ

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
<[hidden email]> 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
>>>> ______________________________________________________________
>>>>
>>> ______________________________________________________________
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto:[hidden email]
>>>
>>> This list hosted by: http://www.qsl.net
>>> Please help support this email list: http://www.qsl.net/donate.html
>>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

Phillip Lontz

Re: KPA-500 questions

Will it transmit on AM?

Phil
Santa Fe
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Eric Swartz - WA6HHQ

Re: KPA-500 questions

Administrator

Yes. All modes.
73, Eric

On 4/6/2011 11:05 AM, Phil Townsend wrote:
> Will it transmit on AM?
>
>
> Phil
> Santa Fe
>
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Eric Swartz - WA6HHQ

Re: KPA-500 questions

Administrator

In reply to this post by Eric Swartz - WA6HHQ

Correction - It will take a couple days to get the optional KPA500-K3
aux cable up on the order form - we are still checking on our cost for
this cable.

The extra power cords are now on the form.

73, Eric

On 4/6/2011 10:08 AM, 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.
______________________________________________________________
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Eric Swartz - WA6HHQ

Re: KPA-500 questions

Administrator

In reply to this post by Iain MacDonnell - N6ML-2

Yes - that is an error inthe preliminary manual. We will correct it ASAP.
73, Eric

On 4/6/2011 10:52 AM, iain macdonnell - N6ML wrote:
> 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?
>
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Jeff Kinzli N6GQ

Re: KPA-500 questions

Any idea when the assembly manual will be available? I'd like to get
an idea how much is involved in building versus ordering a
factory-assembled unit.

On Wed, Apr 6, 2011 at 11:31, Eric Swartz - WA6HHQ, Elecraft
<[hidden email]> wrote:

> Yes - that is an error inthe preliminary manual. We will correct it ASAP.
> 73, Eric
>
>
> On 4/6/2011 10:52 AM, iain macdonnell - N6ML wrote:
>> 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?
>>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>