[R-390] Measuring sensitivity

Mark Huss mhuss1 at bellatlantic.net
Mon Mar 12 09:19:47 EST 2007


Good point. Being picky about the actual output level of the signal 
generator is only important in the following respects;

   1. Making valid comparisons between yourself and others.
   2. Establishing the receiver is working properly the first time, see #1.

Other than that, it really does not matter if the meter reads 1 uV when 
it is actually 3 uV.
Sort of like having a twelve inch ruler that is eighteen inches long. 
The boards still come out the same length unless you try to mix the 
regular ruler with the long one.




Joel Richey wrote:
> Interesting thread, here's how I do it, don't need a bunch of antique signal gens or voltage dividers, I just turn on the old 390A let it heat soak for a half hour of so, go the band I wanna listen to, connect the antenna and if the noise level comes up (which it always does) then I know I have all the sinsitivity I can use.
>
> Hope I didn't step on anyone toes, but sometimes I think we get so far n woods we can't  see the trees.
>
> Joel Richey W2DBO said that and I think my 390A and hear anything yours can and maybe better???
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-- 
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