[Elecraft] K60XV Problem

[Harvey Howell]

Don, I adjusted the VCO range and ended up with 0.551 vdc at 5000 kHz on the 
meter and I can now receive WWV at 5000 kHz. Apparently thats enough voltage 
to work. What I did was adjust L30 so the voltage at 4000 kHz went from 6.52 
vdc to 7.35 vdc. All voltages are between 2.715 vdc and 7.350 vdc on the 
meter.

Harvey  KN6VP
----- Original Message ----- 
From: "Don Wilhelm" <w3fpr at earthlink.net>
To: "Harvey Howell" <h.r.howell at worldnet.att.net>; 
<elecraft at mailman.qth.net>
Sent: Tuesday, May 30, 2006 7:23 AM
Subject: RE: [Elecraft] K60XV Problem


> Harvey,
>
> Re-check the VCO range (voltage on the left end of R30), and be certain 
> all
> the ands fall within the proper range.  It is normal for the VCO voltage 
> to
> become so small below 5300 kHz that the tuning will not continue on down 
> to
> 5000 Hz.  Also the response of the bandpass filter may fall off quite a 
> bit
> at 5000 Hz which will reduce the ability to hear at that frequency.
>
> I cannot speak to your 'buzz-saw' - you will have to be more specific.
>
> 73,
> Don W3FPR
>
>
>> -----Original Message-----
>> From: elecraft-bounces at mailman.qth.net
>> [mailto:elecraft-bounces at mailman.qth.net]On Behalf Of Harvey Howell
>> Sent: Tuesday, May 30, 2006 9:53 AM
>> To: elecraft at mailman.qth.net
>> Subject: [Elecraft] K60XV Problem
>>
>>
>> Hello everyone. I installed a 60 meter board last night and it
>> seems to have a problem. When I entered 5000 kHz I had what
>> sounds like a loud oscillator sound on the audio. I turned on
>> another radio and had WWV loud and clear at 5000 kHz in that
>> radio. When I increase the frequency the oscillator sound goes
>> away (maybe just beyond my hearing) and I hear a very faint sw
>> station at 5070 kHz. Between 5070 kHz and 5300 kHz I can't hear
>> the buzz saw and I adjusted the trimmers for max power out. I'm
>> not getting any error messages on the display. So far I haven't
>> found any visible assembly errors. Has anyone had this problem
>> before? Any ideas what might be bad? On a previous K2 I built
>> with this option I heard WWV right away at 5000 kHz. Thanks very much.
>>
>> Harvey KN6VP
>
>
>
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