Thanks to all those who help with the the hiss problem. I was able to
find a comment in the original thread by WA8SRA. Dale's solution is at
http://mailman.qth.net/pipermail/elecraft/2003-October/024744.html.
However I found a reply to Dale at
http://mailman.qth.net/pipermail/elecraft/2003-Octo
> Tnx Lyle,
> I've seen that link before. It links to
> http://www.ac6rm.net/mailarchive/html/elecraft-list/2003-10/msg00581.html
> which is broken. Maybe I can browse the old archives 2003-10 from > a
> different archive.
> 73,
> Steve N6VL
Steve,
Unfortunately many of the links on the LA3ZA
ROTECTED]>
To: Steve Kallal <[EMAIL PROTECTED]>
Cc: elecraft@mailman.qth.net
Sent: Thursday, July 10, 2008 4:32:09 PM
Subject: Re: [Elecraft] K2: Audio hiss in headphones w/ KDSP2...
> Please let me know if someone has this problem or has resolved it.
< URL:http://www.qslnet.de/memb
Please let me know if someone has this problem or has resolved it.
< URL:http://www.qslnet.de/member/la3za/K2/modAny.html#KDSP2 > and look
up the link for Hiss Reduction by adding the KAF2 LC-filter.
73,
Lyle KK7P
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I posted this question before and never got any response.
I have a K2/100 SN 2289 w/ the KDSP2. There is a definite soft hiss in the
headphone output. It disappears completely when putting the KDSP2 into bypass
mode. So I know it is from the DSP and not from QRN. I use the K2/100
almost exclus
Howard,
Although I follow your thinking, I speculate that the MC1350 IF amplifier
and NE602 Product Detector in the K2, and possibly Q25, could be generating
much of the nuisance audio hiss, even when the RF Gain is turned off.
Unfortunately I cannot power up my K2 at the moment to check this
Idiom Press makes an external SCAF-based audio filter that does an
excellent job of eliminating hiss, among other things. The web site
http://www.idiompress.com has demo .wav files.
The Standard Disclaimer does NOT apply in this case...
73,
- Rob W7GH
K2 #5004
On Fri, 17 Mar 2006 10:02:45
Howard, W1WF wrote:
I was listening to 40 meters late last night (virtually no one there so I
had some time to fool around with the rig) and noticed the level of audio
hiss in the K2. With RF gain off completely and AF gain fully advanced,
there is a fair amount of hiss. This is also noticeable
In a message dated 3/17/2006 1:18:00 P.M. Eastern Standard Time,
[EMAIL PROTECTED] writes:
With RF gain off completely and AF gain fully
advanced, there is a fair amount of hiss.
Howard and all,
To throw my observation into the mix, with AF gain full clo
I was listening to 40 meters late last night (virtually no one there so
I had some time to fool around with the rig) and noticed the level of
audio hiss in the K2. With RF gain off completely and AF gain fully
advanced, there is a fair amount of hiss. This is also noticeable at
operating levels a
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