[Elecraft] K3 Buffer Mod

[Jerry Flanders]

>
>Don Rasmussen wrote:
> >
> >
> > I have the LP-Pan with recommended Creative Labs E-MU
> > 0202 and find this to be optimal, I mean no reason to
> > make a mod of any type to K3. If someone told you that
> > this must be done, I'd want to see why with my own
> > eyes before doing this job.
> >


>At 08:16 AM 8/22/2008, Bill W4ZV wrote:
>17.7 dB transfer loss from RF IN to IF OUT is why...

But isn't that just an engineering design decision made by the 
Elecraft team? Since that decision was (hopefully) made with regard 
to the entire radio system, isn't that decision likely to be a good one?

As one data point, my K3 is not modified, yet the IF panadaptor works 
extremely well, and PowerSDR gives peak heights approximating the 
true signal strengths seen at the input of the K3. When I feed in a 1 
uV signal from my KG-2 signal generator, I see a definite distinct 
peak on the panadaptor, and when I feed in a 50 uV (S9) signal, I see 
a large S9 signal on the panadaptor.

I am a loss to understand why you guys are quarreling with the 
Elecraft design in this instance. I am beginning to suspect that it 
is simply because it does not agree with the usual designs provided 
by some military contractors who are probably using an _arbitrary_ 
"standard" anyway.

I would think twice before possibly damaging my radio or lowering its 
resale value with non-factory authorized modifications.

YMMV.

Jerry W4UK