[Elecraft] K2/KPA100 vs. EC2/KPA100

[Dave Van Wallaghen]

Hi Greg,

If you search the list archives, you'll find all kinds of info for this. 

I put my KPA100 and KAT100 in an EC2 last fall and find it to be a really
slick setup. Lyle, KK7P has a nice webpage full of pics and details for
doing the split: http://www.kk7p.com/k2kpa100.html

To answer your questions:

> 1.  Whether the KPA100 behaves (i.e., "appears") the same to the K2 as
> if it were internal?
 
Yes. As long as the AuxBus connection exists.

> 2.  Is it a simple plug-n-play to either use or not use the EC2 setup?

I assume you mean pulling the "basic" K2 out of the setup for
portable/separate use - Yes. Unplug the RF connections and AuxBus cable and
your ready to go.
 
> 3.  For QPR ops with the EC2 setup, can you run just the KAT100 without
> having to power the KPA100?

The KPA100 will still have "minimal" power applied. It will be in bypass
mode when you turn the power pot down below 10 watts. And yes the KAT100 is
still active. (This is the case whether the KPA100 is separated or not).

I put the KIO2, KAT2 and KB2 in my basic K2 when I split the KPA100 out.
Having a KIO2 installed makes the split very clean and easy. Although, you
can do the split without the KIO2 - Lyle describes that in detail. His
description using the KIO2 can be found toward the bottom of that page.

Hope this answers your questions.

Dave W8FGU

> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net [mailto:elecraft-
> bounces at mailman.qth.net] On Behalf Of Greg Derda
> Sent: Thursday, May 17, 2007 8:50 AM
> To: elecraft at mailman.qth.net
> Subject: [Elecraft] K2/KPA100 vs. EC2/KPA100
> 
> Hi all,
> 
> I just finished building K2 #6100, and will start my KSB2 tonight.  I
> am a no-code General, and work primarily SSB QRO, although I look
> forward to QRP'ing with my K2.  In most cases, for any portable work I
> might do, I will most likely carry at least two "enclosures": the K2
> and some sort of antenna tuner.  That said, two obvious configuration
> for my K2 are:
> 
> 1.  K2/100 with separate KAT/100
> 
> 2.  K2 with EC2/KPA100/KAT100 (and KIO2 in the K2)
> 
> Question is:  What are the obvious benefits or quirks between the above
> setups?  Specifically, I am wondering if with the EC2 setup.....
> 
> 1.  Whether the KPA100 behaves (i.e., "appears") the same to the K2 as
> if it were internal?
> 
> 2.  Is it a simple plug-n-play to either use or not use the EC2 setup?
> 
> 3.  For QPR ops with the EC2 setup, can you run just the KAT100 without
> having to power the KPA100?
> 
> Any and all wisdom will be greatly appreciated!
> 
> Thanks and 73,
> Greg
> KI4MMM
> 
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