[K3] RX Audio Distorted on FM

[Pete-Astound]

Happy Thanksgiving to All,

Just installed the KFL3B-FM Filter to my older K3.
Tuning around on 10 this morning I heard a station, but
things just didn't sound quite right.  I fired up the 817
and found that the transmit audio sounds great, but the
receive audio sounds distorted as though it were being
overdriven.  I've update all the firmware and haven't been
able to find any references to receive audio.  Any suggestions?

Thanks..

Pete - WD6DKW
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[Don Wilhelm-4]

Pete,

Please tell us "the rest of the story".  Do you have the 2.7/2.8 filter
set for SSB reception, or are you trying to use the FM filter for SSB
reception?

If you moved the 2.7/2.8 kHz filter to a different slot, you must tell
the K3 firmware where it is now.  K3 Utility simplifies the process, but
you still have to tell it which filter is in which position.

73,
Don W3FPR

On 11/24/2011 6:06 PM, Pete-Astound wrote:

> Happy Thanksgiving to All,
>
> Just installed the KFL3B-FM Filter to my older K3.
> Tuning around on 10 this morning I heard a station, but
> things just didn't sound quite right.  I fired up the 817
> and found that the transmit audio sounds great, but the
> receive audio sounds distorted as though it were being
> overdriven.  I've update all the firmware and haven't been
> able to find any references to receive audio.  Any suggestions?
>
> Thanks..
>
> Pete - WD6DKW
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

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[Pete-Astound]

Afternoon Don and the group,

Thanks for the quick response..

We're running the stock 2.7 filter in slot 3 and the FM
filter in slot 1..  CW and SSB all running fine with no
issues.. In fact, the FM didn't sound half bad coming thru
the 2.7 filter while playing around with it this afternoon.  
Filter has not been moved since the day I put it in, just
added the KFL3B-FM to slot 1.  I've gone thru the config
process and made sure everything was on and verified that in
FM mode, XFIL1 appears on the screen.  I setup/verified the
filter options using the K3 utility last night and all
seemed well there..  I did noticed last night once
everything was installed that the background static was a
lot higher when I kicked it into FM mode so I'm willing to
bet I am over driving the audio path somewhere.  Strictly
using the FM filter for FM..  As mentioned I have not had
any other issues with audio quality on any other mode until
I try to listen to anything on FM either on 10 or 6. Other
than that, radio (Serial # 1051) is stock with no other
modifications..  Since the bands are now pretty dead, I am
doing all the testing with my 817 in house.  As mentioned,
TX audio sounds really good, the RX audio though sound just
plain distorted as though it were being over-drivin or I'm
not quite centered in the filter passband..

Pete - WD6DKW
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