Re: K3 Loses RX Audio at BW of 2.8 kHz
Posted by
Rick Prather on
Feb 07, 2010; 4:17pm
URL: http://elecraft.85.s1.nabble.com/K3-in-a-cw-pileup-needs-work-tp4523884p4529787.html
Bingo!
I restored my last config (from 1/20) and problem is gone..
Now I am trying to noodle over what configuration item may have changed during the beta upgrade that caused it.
At any rate, all is good now!
Rick
K6LE
On 2/6/2010, at 11:07 , WW2PT wrote:
> My K3 was working fine last time I used it. Tonight I turned it on and
> noticed a similar problem -- no audio in USB or LSB modes whenever I
> set the width to 3.00 kHz or less. Tried downgrading from 3.76 to 3.63
> but no change. Checked all filter settings in the config menu, nothing
> out of place. All other modes were fine.
>
> On a hunch, I restored my last configuration backup file. It worked!
> Everything seems to be behaving well again.
>
> 73 de WW2PT
>
>
>
>
> On Feb 6, 2010, at 12:45 AM, Scott Prather wrote:
>
>> All: This evening when running FW 3.76 I'm seeing a problem with my
>> K3 that
>> I've never seen before.
>>
>> When the K3 is in the LSB, USB or AM mode, adjusting the bandwidth
>> down to
>> 2.8 kHz will result in total loss of audio, even though the S-meter
>> continues to read incoming signal strength. I've tried an EE-Init and
>> reloaded the configuration, but the problem remains. Thinking this
>> might be
>> related to 3.76, I went back to 3.30 and I have exactly the same
>> problem. If
>> I turn on the sub receiver and change its BW using BSET, it loses
>> LSB, USB
>> and AM audio at 2.8 kHz as well. To get audio to return, all I need
>> to do is
>> change the BW to 2.9 kHz or greater on either the main or the sub.
>>
>> Looking through the reflector postings, it looks like someone saw
>> something
>> similar to this in the DATA mode a few months back, and pressing the
>> A/B key
>> would clear it. However, in my case the only way I can restore audio
>> is to
>> change the BW to 2.9 kHz or greater. In the CW and DATA modes, the
>> audio
>> does not drop out at any bandwidth setting.
>>
>> Does anyone have a suggestion as to what might be going on?
______________________________________________________________
Elecraft mailing list
Home:
http://mailman.qth.net/mailman/listinfo/elecraftHelp:
http://mailman.qth.net/mmfaq.htmPost: mailto:
[hidden email]
This list hosted by:
http://www.qsl.netPlease help support this email list:
http://www.qsl.net/donate.html