[Elecraft] K3 in AM-Sync Mode Receiving WWV

[Kenneth Moorman]

Yes, I can clearly see this happening on my "panadaptor" lash-up using an
SDR and Rocky software from the IF output port of the K3.  Thanks for
pointing this out.  Obviously I shouldn't need to leave VFO Tracking on all
the time when receiving WWV.

Ken, NU4I

-----Original Message-----
From: Wayne Burdick [mailto:n6kr at elecraft.com] 
Sent: Monday, November 16, 2009 11:44 AM
To: Jim Wiley
Cc: Kenneth Moorman; Elecraft at mailman.qth.net
Subject: Re: K3 in AM-Sync Mode Receiving WWV

This is exactly what's happening, and we're looking into a possible  
change in the way we handle it.

For now, you can leave VFO auto-tracking turned off when listening to  
WWV (tap CWT until the 'T' icon turns off). You can tune the signal in  
manually until the PLL locks (+/- 10 Hz), or tap SPOT to have it track  
the signal long enough to lock.

73,
Wayne
N6KR

On Nov 16, 2009, at 8:20 AM, Jim Wiley wrote:

> This problem may (or may not) be caused by selective fading, causing  
> the
> "real" WWV carrier to disappear for a moment, whereby the K3 then  
> locks
> up to one of the sidebands, perhaps from the 100 Hz time data, then
> returns to the main carrier when it again is strong enough.  Of course
> it may be something else entirely, but  that is one possibility.
>
>
> Disclaimer:  This opinion is worth exactly what you had to pay for it.
>
>
> - Jim, KL7CC
>
>
>
> Kenneth Moorman wrote:
>> I have been trying out the new AM-Sync mode by listening to WWV on  
>> its 5
>> frequencies and am seeing something that I wonder is a "problem"  
>> for my K3
>> (#1292) or is it being seen by others as well.  I have observed  
>> that on the
>> 10MHz WWV frequency only, that my K3 will momentarily "unlock" with  
>> the
>> frequency jumping either up or down by as much as 200 Hz