Re[Elecraft] ceiver distortion

[n4lq]

Rotating my RFG counter clockwise caused the meter to peg at the 3 dot on 
the knob scale. Something is wrong there.

Steve Ellington
N4LQ at insightbb.com
----- Original Message ----- 
From: "John Trager" <JTrager at Carolina.rr.com>
To: "Barry N1EU" <barry.n1eu at gmail.com>; <elecraft at mailman.qth.net>
Sent: Monday, May 12, 2008 3:55 PM
Subject: Re: Re[Elecraft] ceiver distortion


>I did a quick test using my K3 and 756ProIII.  With an input of S9+40dB and
> the K3's Rx frequency set to 14.200000, I set the signal generator for
> 14.201500 (for a 1500Hz tone).
>
> The K3 seems to have about the same max output whether using the Line Out 
> or
> Speaker Out (on the rear of the radio), and it is less than +/- 8000 
> (using
> Adobe Audition.
>
> My 756ProIII has a Line Out of greater than +/- 14000.
>
> Of course when the waveform starts clipping, you can hear the distortion,
> which I can also see on the Adobe Audition frequency analysis display.
>
> BTW, when I rotate the RF GAIN control on my K3 full counter-clockwise, it
> doesn't make it up to S9+60db!  Anybody else notice this?  As a result, a
> 50mV input will not show S9+60dB.
>
>
> John
> N2KBE
>
> ----- Original Message ----- 
> From: "Barry N1EU" <barry.n1eu at gmail.com>
> To: <elecraft at mailman.qth.net>
> Sent: Monday, May 12, 2008 12:21 PM
> Subject: Re: Re[Elecraft] ceiver distortion
>
>
>>
>>
>> n4lq wrote:
>>>
>>> The K3 has the cleanest receive audio I've see thusfar.
>>>
>> I'm likewise a bit skeptical (but I could be wrong) about the alleged K3
>> rx
>> audio issues.  My experience is that the K3 rx audio is more 
>> "transparent"
>> and thus any problems with the other guy's audio will be glaringly
>> apparent
>> with the K3.  This might be what some people are hearing - the bad 
>> signals
>> are going to sound "badder" on the K3.  The K3 rx is less "forgiving"
>> because you are hearing better.  I do seem to be noticing how bad most
>> signals sound on 20M ssb lately, although there is the occasional smooth
>> sounding signal.  I routinely A/B with my Orion to confirm what I'm
>> hearing.
>>
>> Perhaps folks who are reporting audio issues with the latest firmware can
>> make some WAV recordings that we can listen to, with the "good" and "bad"
>> firmware versions.
>>
>> 73,
>> Barry N1EU
>>
>> -- 
>> View this message in context:
>> http://www.nabble.com/Receiver-distortion-tp17180061p17189855.html
>> Sent from the Elecraft mailing list archive at Nabble.com.
>>
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