[Elecraft] evolution of goals , now low noise

[Charles Harpole]

I remember that in the 1950-60s, hams sought more

sensitivity in their rcvrs.  That "solved,"  then later 

the chase changed into a

search for greater selectivity.   Thus INRAD and

roofing filters, passband tuning and notches.   Now in our rf poluted

world, we seek noise limitations and control.

The IC-775DSP for example, has a noise function 

designed just for the Russian Woodpecker.  That 

thankfully gone, now we want a limiter on all that

other noise.   73


Charles Harpole

k4vud at hotmail.com






> From: jim at audiosystemsgroup.com
> To: elecraft at mailman.qth.net
> Date: Tue, 19 Aug 2008 00:40:40 -0700
> Subject: Re: [Elecraft] K3 noise blanker
>
> On Sun, 17 Aug 2008 21:30:26 +0100, Stephen Prior wrote:
>
>>The NB is, it seems to me, no better than many others I have used
>>(eg TS-850) and the NR does not seem, to me at least, to be any better
>>than that on the TS-480 this K3 replaced.
>
> That's not surprising, and I'm not complaining -- I'm just not declaring it
> equivalent to the second coming. At some point, you bump up against the
> limits of what can be achieved without destroying the signal. On the other
> hand, I also think that there is an experience factor here -- we, the
> operators, learning to get the most out of the tools that are included.
>
> 73,
>
> Jim K9YC
>
>
>
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