[Elecraft] K3 receiver noise questionable test results

[Don Wilhelm]

James,

In the situation you describe, only a low pass audio filter would help - 
it should be available soon.
Perhaps some others are hearing the same thing, but have not described 
it as well.

I have also heard from K3 owners who have changed their AGC parameters 
closer to the SLP = 002 and TH = 002 that I normally use and have 
reported a big change in the apparent noise of their K3.  There is not 
one answer for everyone - it all depends on the noise source.

73,
Don W3FPR

James Sarte wrote:
> Greetings Al et all,
>
> In my case, I experience a significant amount of high-frequency white noise.
> I'm not sure if that's the best way to describe it.  Think of the
> high-pitched whine you'd hear if you're travelling inside an airplane.
> Adjusting AGC, gain, and even RX EQ settings don't have much of an effect.
> If anything, adjusting AGC and gain controls just seem to reduce volume but
> not actual audio characteristic.
>
> 73 de James K2QI
>
> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Al Lorona
> Sent: Friday, December 18, 2009 9:07 PM
> To: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] K3 receiver noise questionable test results
>
> <snip>
>
> Help me out here: are we talking about the *amount* of noise, or the
> *character* of the noise? I don't even think we've established the answer to
> this.
>
> If it's the amount of noise that folks are hearing, wouldn't you just turn
> the gain down to match your Other receiver? No two receivers have the same
> amount of gain, and I think this point has been lost on some of us.
>
> If it's the character of the noise, and if you find it objectionable, and if
> no settings of gain, filtering or noise reduction change it, I'd say
> it's time to go back to the Other receiver, and I'm not being facetious
> about this.
>
> <snip>
>
> Al  W6LX
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