[Elecraft] K60XV Problem

[Harvey Howell]

Yes, thanks Sjoerd.

Harvey KN6VP
----- Original Message ----- 
From: "Sjoerd" <pe2svn at gmail.com>
To: <elecraft at mailman.qth.net>
Sent: Tuesday, May 30, 2006 1:44 PM
Subject: RE: [Elecraft] K60XV Problem


> Did you change the D19 parameter?
>
> Just my 1st thought...
>
>
> Good luck!
>
> Sjoerd
> PE2SVN
>
> -----Oorspronkelijk bericht-----
> Van: elecraft-bounces at mailman.qth.net
> [mailto:elecraft-bounces at mailman.qth.net] Namens Harvey Howell
> Verzonden: dinsdag 30 mei 2006 22:33
> Aan: w3fpr at arrl.net; elecraft at mailman.qth.net
> Onderwerp: Re: [Elecraft] K60XV Problem
>
> 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
>>
>>
>>
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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