[Elecraft] K3 dsp board upgrade for early radio

[Johnny Siu]

Hello Nick,
 
As you will take the trouble to open up the K3 front panel, I suggest you swap the entire DSP board for a peaceful mind.
 
Luckily, my hearing is still very good up to 15Khz.  To me, it is day and night difference after the swap.  Judging from your serial no, there are quite a number of modification applicable to your K3.  All these modifications are not difficult to be installed even for a non-radio man like myself.

TNX & 73,


Johnny VR2XMC


________________________________
 從︰ Don Wilhelm <w3fpr at embarqmail.com>
收件人︰ Nick Thomas <njtster at gmail.com> 
副本(CC)︰ elecraft at mailman.qth.net 
傳送日期︰ 2011年12月5日 (週一) 10:20 PM
主題︰ Re: [Elecraft] K3 dsp board upgrade for early radio
 
Nick,

The little K3DSPLPF will take care of the high frequency part of the 
spectrum just the same as the DSP Board swap, BUT, it will not extend 
the low frequency response.

So, the answer depends on what you want to accomplish - if you want both 
the high and low frequency changes in your K3, then the DSP Board swap 
is the easiest way to accomplish that.

73,
Don W3FPR

On 12/5/2011 9:04 AM, Nick Thomas wrote:
> Hi Gents,
>
> I have an early K3 - serial # around 400. Do I need to swap the entire
> DSP board out for a Rev D board or is the little mod kit *"K3DSPLPF"
> *that is sold for $40 going to do it for me?
>
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