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Driving an external amp with base K2

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Bill Allen-6

Driving an external amp with base K2

I am trying to drive an external amp, 300W amp, with my base QRP K2. The issue I am having is that during SSB mode transmissions, the amp's T/R switch often opens and closes between the sylables of some words. Is there an adjustment I can make in the K2 to help lessen this? Otherwise, it seems to working well. Also, when working with such an amp with CW, should it be set for AM mode?

73,
Bill - WA5PB

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Gregg R. Lengling

Re: Driving an external amp with base K2

Why don't you use a manual keying line instead of using the rf sampling
keying.

Gregg R. Lengling, W9DHI, Un-Retired
K2/100 SN 3075
http://www.milwaukeehdtv.org

----- Original Message -----
From: "Bill Allen" <[hidden email]>
To: <[hidden email]>
Sent: Tuesday, November 15, 2005 1:21 PM
Subject: [Elecraft] Driving an external amp with base K2

>
> I am trying to drive an external amp, 300W amp, with my base QRP K2. The
> issue I am having is that during SSB mode transmissions, the amp's T/R
> switch often opens and closes between the sylables of some words. Is
> there an adjustment I can make in the K2 to help lessen this? Otherwise,
> it seems to working well. Also, when working with such an amp with CW,
> should it be set for AM mode?
>
> 73,
> Bill - WA5PB
>
> _______________________________________________
> Elecraft mailing list
> Post to: [hidden email]
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
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>
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> Elecraft web page: http://www.elecraft.com

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Bill Allen-6

Re: Driving an external amp with base K2

In reply to this post by Bill Allen-6

To the best of my knowledge, the amp does not have an external keying line available.

73,
Bill - WA5PB

-----Original Message-----
From: "Gregg R. Lengling" <[hidden email]>
Sent: Nov 15, 2005 1:24 PM
To: Bill Allen <[hidden email]>, [hidden email]
Subject: Re: [Elecraft] Driving an external amp with base K2

Why don't you use a manual keying line instead of using the rf sampling
keying.

Gregg R. Lengling, W9DHI, Un-Retired
K2/100 SN 3075
http://www.milwaukeehdtv.org

----- Original Message -----
From: "Bill Allen" <[hidden email]>
To: <[hidden email]>
Sent: Tuesday, November 15, 2005 1:21 PM
Subject: [Elecraft] Driving an external amp with base K2

Gregg R. Lengling

Re: Driving an external amp with base K2

It's easy enough to create one and put a switch in to turn the sense circuit
on and off. I've done this on many amps, especially on VHF/UHF amps to cure
this SSB problem.

Gregg R. Lengling, W9DHI, Un-Retired
K2/100 SN 3075
http://www.milwaukeehdtv.org

----- Original Message -----
From: "Bill Allen" <[hidden email]>
To: <[hidden email]>
Sent: Tuesday, November 15, 2005 1:30 PM
Subject: Re: [Elecraft] Driving an external amp with base K2

> To the best of my knowledge, the amp does not have an external keying line
> available.
>
> 73,
> Bill - WA5PB
>
> -----Original Message-----
> From: "Gregg R. Lengling" <[hidden email]>
> Sent: Nov 15, 2005 1:24 PM
> To: Bill Allen <[hidden email]>, [hidden email]
> Subject: Re: [Elecraft] Driving an external amp with base K2
>
> Why don't you use a manual keying line instead of using the rf sampling
> keying.
>
> Gregg R. Lengling, W9DHI, Un-Retired
> K2/100 SN 3075
> http://www.milwaukeehdtv.org
>
> ----- Original Message -----
> From: "Bill Allen" <[hidden email]>
> To: <[hidden email]>
> Sent: Tuesday, November 15, 2005 1:21 PM
> Subject: [Elecraft] Driving an external amp with base K2
>
>
>>
>> I am trying to drive an external amp, 300W amp, with my base QRP K2. The
>> issue I am having is that during SSB mode transmissions, the amp's T/R
>> switch often opens and closes between the sylables of some words. Is
>> there an adjustment I can make in the K2 to help lessen this? Otherwise,
>> it seems to working well. Also, when working with such an amp with CW,
>> should it be set for AM mode?
>>
>> 73,
>> Bill - WA5PB
>>
>> _______________________________________________
>> Elecraft mailing list
>> Post to: [hidden email]
>> You must be a subscriber to post to the list.
>> Subscriber Info (Addr. Change, sub, unsub etc.):
>> http://mailman.qth.net/mailman/listinfo/elecraft
>>
>> Help: http://mailman.qth.net/subscribers.htm
>> Elecraft web page: http://www.elecraft.com
>
>
> _______________________________________________
> Elecraft mailing list
> Post to: [hidden email]
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
> http://mailman.qth.net/mailman/listinfo/elecraft
>
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com