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KXPA100 with other QRP rigs...

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Phil Hystad-3

KXPA100 with other QRP rigs...

Has anyone used the new KXPA100 100-watt amplifier with other "simple" QRP rigs? By simple I am thinking of as simple as the Norcal 40A and maybe as complex as the Elecraft K1.

Two issues that I can think of:

1. RF Drive. Is 1 to 2.5 watts RF sufficient to drive the KXPA100 cleanly?

2. Key out. Most of these simple rigs (as far as I know) do not have an amp keying interface. It would be nice if they did to QSK key the KXPA100 (thus, driven by the rigs electronic keyer).

Is it hard to put a key output line in something like the Norcal 40A or maybe the KX1?

Thanks for your comments.

73, phil, K7PEH

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Phil Hystad-3

Re: KXPA100 with other QRP rigs...

Yes, but that does not answer my question. I could have been more clear I guess. I am thinking that this 3.5 to 7 watt range is to achieve 100 watts output. I am asking about, say, 1 watt drive and certainly I expect the output to be lower.

phil, K7PEH

On Mar 27, 2014, at 9:21 AM, Walter Underwood <[hidden email]> wrote:

> This can be answered by reading the specs in the manual.
>
> "Drive Power: 3.5 to 7 watts, typical, for 100 W ± 1 dB output"
>
> wunder
> K6WRU
>
> On Mar 27, 2014, at 9:17 AM, Phil Hystad <[hidden email]> wrote:
>
>> Has anyone used the new KXPA100 100-watt amplifier with other "simple" QRP rigs? By simple I am thinking of as simple as the Norcal 40A and maybe as complex as the Elecraft K1.
>>
>> Two issues that I can think of:
>>
>> 1. RF Drive. Is 1 to 2.5 watts RF sufficient to drive the KXPA100 cleanly?
>>
>> 2. Key out. Most of these simple rigs (as far as I know) do not have an amp keying interface. It would be nice if they did to QSK key the KXPA100 (thus, driven by the rigs electronic keyer).
>>
>>
>> Is it hard to put a key output line in something like the Norcal 40A or maybe the KX1?
>>
>> Thanks for your comments.
>>
>> 73, phil, K7PEH
>>
>> ______________________________________________________________
>> 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
>> Message delivered to [hidden email]
>
> --
> Walter Underwood
> [hidden email]
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
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Igor Sokolov-2

Re: KXPA100 with other QRP rigs...

Phil,
With 1 W drive I get around 25-30 W on 15 and 10 m bands and close to 50W on
20 m band from KXPA100

73, Igor UA9CDC

----- Original Message -----
From: "Phil Hystad" <[hidden email]>
To: "Walter Underwood" <[hidden email]>
Cc: "Elecraft Reflector" <[hidden email]>
Sent: Thursday, March 27, 2014 10:24 PM
Subject: Re: [Elecraft] KXPA100 with other QRP rigs...

Yes, but that does not answer my question. I could have been more clear I
guess. I am thinking that this 3.5 to 7 watt range is to achieve 100 watts
output. I am asking about, say, 1 watt drive and certainly I expect the
output to be lower.

phil, K7PEH

On Mar 27, 2014, at 9:21 AM, Walter Underwood <[hidden email]> wrote:

> This can be answered by reading the specs in the manual.
>
> "Drive Power: 3.5 to 7 watts, typical, for 100 W ± 1 dB output"
>
> wunder
> K6WRU
>
> On Mar 27, 2014, at 9:17 AM, Phil Hystad <[hidden email]> wrote:
>
>> Has anyone used the new KXPA100 100-watt amplifier with other "simple"
>> QRP rigs? By simple I am thinking of as simple as the Norcal 40A and
>> maybe as complex as the Elecraft K1.
>>
>> Two issues that I can think of:
>>
>> 1. RF Drive. Is 1 to 2.5 watts RF sufficient to drive the KXPA100
>> cleanly?
>>
>> 2. Key out. Most of these simple rigs (as far as I know) do not have an
>> amp keying interface. It would be nice if they did to QSK key the
>> KXPA100 (thus, driven by the rigs electronic keyer).
>>
>>
>> Is it hard to put a key output line in something like the Norcal 40A or
>> maybe the KX1?
>>
>> Thanks for your comments.
>>
>> 73, phil, K7PEH
>>
>> ______________________________________________________________
>> 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
>> Message delivered to [hidden email]
>
> --
> Walter Underwood
> [hidden email]
>
>
>
> ______________________________________________________________
> 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
> Message delivered to [hidden email]

______________________________________________________________
Elecraft mailing list
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Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

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Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

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Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

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Phil Hystad-3

Re: KXPA100 with other QRP rigs...

Thanks.

phil, K7PEH

On Mar 27, 2014, at 10:07 AM, Igor Sokolov <[hidden email]> wrote:

> Phil,
> With 1 W drive I get around 25-30 W on 15 and 10 m bands and close to 50W on 20 m band from KXPA100
>
> 73, Igor UA9CDC
>
> ----- Original Message ----- From: "Phil Hystad" <[hidden email]>
> To: "Walter Underwood" <[hidden email]>
> Cc: "Elecraft Reflector" <[hidden email]>
> Sent: Thursday, March 27, 2014 10:24 PM
> Subject: Re: [Elecraft] KXPA100 with other QRP rigs...
>
>
> Yes, but that does not answer my question. I could have been more clear I guess. I am thinking that this 3.5 to 7 watt range is to achieve 100 watts output. I am asking about, say, 1 watt drive and certainly I expect the output to be lower.
>
> phil, K7PEH
>
>
> On Mar 27, 2014, at 9:21 AM, Walter Underwood <[hidden email]> wrote:
>
>> This can be answered by reading the specs in the manual.
>>
>> "Drive Power: 3.5 to 7 watts, typical, for 100 W ± 1 dB output"
>>
>> wunder
>> K6WRU
>>
>> On Mar 27, 2014, at 9:17 AM, Phil Hystad <[hidden email]> wrote:
>>
>>> Has anyone used the new KXPA100 100-watt amplifier with other "simple" QRP rigs? By simple I am thinking of as simple as the Norcal 40A and maybe as complex as the Elecraft K1.
>>>
>>> Two issues that I can think of:
>>>
>>> 1. RF Drive. Is 1 to 2.5 watts RF sufficient to drive the KXPA100 cleanly?
>>>
>>> 2. Key out. Most of these simple rigs (as far as I know) do not have an amp keying interface. It would be nice if they did to QSK key the KXPA100 (thus, driven by the rigs electronic keyer).
>>>
>>>
>>> Is it hard to put a key output line in something like the Norcal 40A or maybe the KX1?
>>>
>>> Thanks for your comments.
>>>
>>> 73, phil, K7PEH
>>>
>>> ______________________________________________________________
>>> 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
>>> Message delivered to [hidden email]
>>
>> --
>> Walter Underwood
>> [hidden email]
>>
>>
>>
>> ______________________________________________________________
>> 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
>> Message delivered to [hidden email]
>
> ______________________________________________________________
> 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
> Message delivered to [hidden email]