[Elecraft] K60XV Problem

[Harvey Howell]

Thanks Mark. My other K2, S/N 5022 receives WWV on 5000 kHz real good. This 
one is S/N 5404. Last night I tuned my Sony 2010 receiver to 5000 kHz and it 
almost pegged the meter...the path just happened to be open. I'll let you 
know if I am able to get this rig to do it.

Harvey KN6VP
----- Original Message ----- 
From: "Mark Bayern" <mbayern at gmail.com>
To: "Harvey Howell" <h.r.howell at worldnet.att.net>
Cc: <w3fpr at arrl.net>; <elecraft at mailman.qth.net>
Sent: Tuesday, May 30, 2006 2:11 PM
Subject: Re: [Elecraft] K60XV Problem


> Harvey,
>
> I found that I could adjust the VCO voltage to keep the VCO in lock at
> 5MHz -- however, I have yet to copy WWV at 5MHz.  And, I did get that
> 'buzz saw' sound when the VCO is not in lock.  Good luck -- if you
> find you can copy WWV at 5M, please let me know about it.
>
> Mark
>
>
>
> On 5/30/06, Harvey Howell <h.r.howell at worldnet.att.net> wrote:
>>  Thanks Don. I think the VCO voltage is too low at 5000kHz. At 5300 kHz 
>> it
>> reads 1.084 vdc on my Fluke 179. I will have to go back to the adjustment
>> routine in the K2 manual and see if I can shift all the voltages enough. 
>> On
>> my previous K2 it worked great at 5000kHz. The buzz saw sound to me is 
>> like
>> hearing some internally generated low frequency and nothing else. The
>> frequency changes a little bit when I attach the DMM lead to R30. Thanks 
>> for
>> your help.
>>
>> 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
>> >
>> >
>> >
>> > --
>> > No virus found in this incoming message.
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>> > Version: 7.1.394 / Virus Database: 268.7.4/351 - Release Date: 
>> > 5/29/2006
>> >
>> >
>>
>>
>>
>> --
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>
>
> -- 
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>
> 



-- 
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.1.394 / Virus Database: 268.7.4/351 - Release Date: 5/29/2006