[Elecraft] K2 Kit Questions

[Don Wilhelm]

  Phil,

The K2 RF stages are all analog.  Any digital signals are for control 
purposes.  The VFO is a PLL/VCO implementation.

You will get varied opinions about the KDSP2 vs. the KAF2 for CW use.  
Some like the DSP, others prefer the KAF2, while others advocate that 
the variable width IF filter is sufficient.  I am in the latter category 
- I have the KAF2 in mine but seldom use it.  Since the KDSP2 and the 
KAF2 occupy the same physical space inside the K2, only one can be 
present at a time.

If you are considering the use of digital modes, you will want to 
install the KSB2 even though you do not intend to operate SSB.

If you are contemplating portable operation, you will want to include 
the KAT2 internal tuner.  If you have any desires to connect the K2 to a 
rig control computer application (logger or something more exotic), you 
will want the KIO2.

73,
Don W3FPR

On 2/7/2011 7:51 PM, Phil Hystad wrote:
> Gang,
>
> So, I am thinking that another kit is in my future.  I have a K3 and a KX1 and I am thinking about the K2.  I would be using it for CW and QRP or 2*QRP only.  So, I wouldn't plan on getting the SSB option and I am not planning on the 100 watt PA or the ATU.
>
> But, I do have questions about filters (remember, CW usage only).
>
> 1.  Question:  is the radio a completely analog radio (no DSP) if you DO NOT buy the DSP filter option?
>
> 2.  Question:  is the DSP filter worth the money?
>
> 3.  Question:  is the Audio filter useful?  Is the Audio filter still useful if I buy the DSP filter?
>
> Any other comments and suggestions are definitely accepted.
>
> 73, phil, K7PEH
>
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