[Elecraft] K3 APF Problem

Craig - AE6RR ae6rr at pacbell.net
Tue Feb 1 20:44:32 EST 2011


Thanks to all the replied offline.

I now have the latest manual (D9 version) and the release notes for the
firmware.  Let's see if it helps my pull VP8ORK out of the noise on 80m
tonight.

I did work them on 40m CW and SSB last night with the K3 and an ALS-1300
amp.

73,
- Craig, AE6RR

-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Craig - AE6RR
Sent: Tuesday, February 01, 2011 9:20 AM
To: eric at elecraft.com; 'Jim Harris'
Cc: 'Elecraft Email'
Subject: Re: [Elecraft] K3 APF Problem

I am still a new K3 user and learning the radio.  I have looked through the
manual a couple of times and I cannot find out how to turn APF on.  I must
be missing that.  It sounds like a useful feature and might help pull VP8ORK
out of the noise.

73,
- Craig, AE6RR

K3 #4877

-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Eric Swartz - WA6HHQ,
Elecraft
Sent: Monday, January 31, 2011 10:21 AM
To: Jim Harris
Cc: Elecraft Email
Subject: Re: [Elecraft] K3 APF Problem

If you enable advanced mode in the utility preferences, you can chose to 
only load specific files.

Be careful with this, as DSP, CPU, FPF files etc from a release must all 
match the release set.  That's why we recommend clicking on the 'load 
all files' button.

73, Eric  WA6HHQ
---

On 1/31/2011 10:04 AM, Jim Harris wrote:
> Vic and all,
>
> This morning I've reloaded all the K3 firmware and the problem has
disappeared.  Guess the third time loading is the charm. 
>
> Two suggestions for those that make decisions.  Put a feature in the
utility to load only certain firmware rather than a complete reload.  There
is a feature to upload only new revisions but nothing to reload only a
single firmware.  Second, zip a complete set of compatible firmware files
into one file, unzip it in the utility and load from those files only.  This
could eliminate the problem I had that took several emails and three days to
correct.  Of course, individual files could be left on the server for those
desiring to download individual files.
>
> The APF does give a peak to weaker CW so it is a definite improvement.  I
noticed very little ringing.  It makes the audio sound a bit more crisp
making it easier to hear.  Guess that is a result of enhancing the "Q"
someplace as has been previously discussed.
>
> Vic, thank you for helping resolve the problem with my K3.
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