[Elecraft] K2 with KXPA100

[AB4IQ]

You are correct Don, Far Circuits does have the board for the N0SS  amp
Keying circuit.  I have installed it in both of my K2's and works great.
They also have the board for your fixed Audio out.  They are hard to find on
his web page so I just called him and he took care of my order.

Ed.... AB4IQ

-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Don Wilhelm
Sent: Monday, April 22, 2019 6:55 AM
To: Heinz Baertschi <heinz.baertschi at bluewin.ch>; elecraft at mailman.qth.net
Subject: Re: [Elecraft] K2 with KXPA100

Heinz,

That buffer amp is for an IF output from the K2, and is NOT an amplifier
keying output.

73,
Don W3FPR

On 4/22/2019 2:34 AM, Heinz Baertschi wrote:
> There is another source here:
> 
> DX ENGINEERING Clifton Labs Buffer Amplifier Kit for Elecraft K2 
> (Built & Tested Z10000C PCB, Mounting Hardware, Insulation, Coaxial 
> Cables w/Connectors, Kit), $47.99
> 
> 73,
> Heinz HB9BCB
> 
> 
> 
> Don Wilhelm wrote
>> Jay,
>>
>> You will need to key the amplifier with a keying output from the K2.
>> Yes, the amp will detect band and frequency, but you still need a 
>> KEYOUT from the K2.
>> The best solution is to use the N0SS Amplifier Keying board.  Since 
>> Tom is SK, no kits are available, but I understand you can obtain the 
>> boards from FAR circuits - or the circuit is simple enough that you 
>> can build it on perfboard using Tom's full size board layout.  See 
>> http://www.mmccs.com/mmarc/n0ss/k2_t-r_rly_drvr.pdf.
>>
>> Thank you for your help at RARSfest - the Amazon package arrived 
>> today - Thanks.
>>
>> 73,
>> Don W3FPR
>>
>> On 4/21/2019 8:23 PM, Jay Rutherford wrote:
>>> Greetings all,
>>>
>>> How could I use the KXPA100 amp with my K2? I don't think the K2 has 
>>> a keying line, and so I wonder if the KXPA100 would automatically 
>>> detect band and frequency through the built-in tuner without a 
>>> keying line cable. Any info appreciated.
>>>
>>> 73 Jay K3BH
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