[Elecraft] SM6CKU earlier this morning

[SM6CKU]

Hello guys,

Well, it just happened when I started to call CQ and I have no idea why. The 
MON was indeed also set to zero, which I discovered first. Strange things 
seem to happen with this radio (Windows-like), but I still enjoy it :-)

73 de Ben

----- Original Message ----- 
From: "Matt Zilmer" <mzilmer at verizon.net>
To: <aa3cs at me.com>
Cc: "SM6CKU" <ben at sm6cku.se>; <Elecraft at mailman.qth.net>
Sent: Saturday, June 04, 2011 2:53 PM
Subject: Re: [Elecraft] SM6CKU earlier this morning


The CW pitch has a bottom limit of 300 Hz.  He probably had the MON
setting at ZERO, which would have the same effect as described.

73,
matt W6NIA

On Sat, 04 Jun 2011 07:40:11 -0400, you wrote:

>Ben,
>
>That would explain it. A pitch of zero would put the audio in the sub 
>audible range and probably put it below the bandpass of the audio 
>amplifiers and filters resulting in muffled or no audio in CW. If you set 
>your IF bandwidth high enough, you would have been able to hear stations 
>that were quite far away in frequency but not the ones you were tuned to. 
>I'm curious as to how the pitch got to zero, I thought the K3 had a lower 
>limit around 400 Hz for the CW pitch. Anyway glad you found the problem.
>
>73,
>Chuck - AA3CS
>
>Sent from my iPhone
>
>On Jun 4, 2011, at 7:02 AM, SM6CKU <ben at sm6cku.se> wrote:
>
>> I found the problem. For some reason the pitch of the sidetone was zero 
>> and was adjusted and sidetone OK. But how can that "mute" the receiver in 
>> CW mode?
>> Now everything is normal but these small things makes me nervous.....
>>
>> 73 de Ben
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