[Elecraft] Noise gen

[Stephen W. Kercel]

Don:

Thanks,

Steve


At 08:23 PM 1/16/2005 -0500, you wrote:
>Steve,
>
>A calibrated noise source is not necessary for aligning the K2 filters - 
>most any source of noise will do.  I have even heard that some folks were 
>successful with a bit of wire placed close to a lighted flourescent lamp.
>
>If you have other needs for a calibrated noise source, you can also use it 
>for the K2 alignment, but that is much more than is needed for aligning 
>the K2 filters.
>
>73,
>Don W3FPR
>
>----- Original Message -----
>>I was wondering if anyone on the reflector had tried building the 
>>"Calibrated Noise Source" described starting on Page 25.27 of the 2005 
>>ARRL Handbook. If so, has anyone tried aligning a K2 with it?
>>
>>The Handbook noise source looks like it would be more expensive and 
>>harder to build than the Elecraft Ngen. Presumably the flat spectrum and 
>>precise calibration of the Handbook generator make it better for doing 
>>noise figure measurements.
>>
>>Does anyone have some thoughts on the tradeoffs between the two generators?
>>
>>73,
>>
>>Steve Kercel
>>AA4AK
>>
>>
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>
>