K1 bandspread options revisited ...

[Doug Hensley]

K1 Fanatics,
The K1 can apparently be set to have a band spread of 80 kHz or 150.  Can this choice be easily reversed if I wanted to see (aka "experience") the difference in operation?  
Secondly, as the tuning rate increases with the wider band spread, can that be tamed by going to a different VFO encoder or variable pot ?  
Finally, does anyone know if the Cumbria Designs X-Lock VFO stabilizer would help the 150 kHz option ?  ... or is that irrelevant?
Feel free to reply in private as I am on Digest Mode.
Thank you,
Doug W5JV



 



From: [hidden email]
To: [hidden email]
Subject: RE: W5JV : Fwd: W5JV K1 Order Page questions
Date: Fri, 2 Oct 2015 11:56:29 -0500




Thank you Craig.  I got it now: the back light is a separate unit all by itself and not part of the LCD.  I was under the mistaken assumption that there were two LCD units and one was backlit.  My mistake.  I appreciate your taking time to answer this dumb question.  I didn't know.
Doug



 



Subject: W5JV : Fwd: W5JV K1 Order Page questions
To: [hidden email]
From: [hidden email]
Date: Fri, 2 Oct 2015 08:18:27 -0700


 

   
 
 
   

   

     
      Hi Doug,

     

      Thank you for your interest in the K1.

     

      Here is the link to purchase the LCD backlight, separately. http://www.elecraft.com/order_form_parts.htm#K1%20Parts

     

      The instructions will show you how to add the backlight to the LCD
      which comes with the K1.

     

      73,
      On 10/1/2015 4:46 PM, Lisa Jones
        wrote:

     
     
       
        [hidden email]
       

         

          -------- Forwarded Message --------
         
           
             
                Subject:


               
                K1 Order Page questions
             
             
                Date:

               
                Thu, 1 Oct 2015 18:20:09 -0500
             
             
                From:

               
                Doug Hensley <[hidden email]>
             
             
                To:
               
                [hidden email]
                  <[hidden email]>
             
           
         
         

         

         
          Hello,
           

           
            Does


                a new K1 kit come with the backlight LCD or must that be
                ordered in addition to the K1?  And does that mean the
                buyer ends up with a spare non-back lit LCD ?
           

             
            Thank


                you,
           

             
            Doug


                W5JV
           

             
           
              [hidden email]
             

             
             

             

             

             
             

             
               
             

             
             

             
           
         
         

       
       

     
     

     

      --
--------------------------
Craig Smith W6WL
Elecraft Customer Support
831-763-4211 x 174
--------------------------
     

   
   

   

    --
--------------------------
Craig Smith W6WL
Elecraft Customer Support
831-763-4211 x 174
--------------------------        
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[Don Wilhelm-4]

Doug,

The bandspread of the K1 can be easily changed by changing the value of
RF Board C2.  The 68pF and the 120pF capacitors are provided with the
kit, but if you want to customize the bandspread, you are free to use
whatever value capacitor at C2 that you desire - 100pF will give you
about a 100 to 120 kHz range.  You may have to alter the turns spacing
of L1 to produce the proper VFO tuning when C2 is changed.
Yes, you can change the tuning range at any time.

The only real change that should accompany a change in the tuning range
is the selection of which crystal to use for 30 meters on the band
board.  With a tuning range of greater than 120kHz, you may want to use
the 18.0 MHz crystal for coverage from 10.0 MHz to 10.120 MHz.  With a
more narrow tuning range (less than 100 kHz), you would not be able to
tune into the 30 meter amateur band with the 18.0 MHz crystal, and the
18.1 MHz crystal must be used so the K1 will tune from 10.100 MHz upward.

The Cumbria Designs X-Lock will work with any tuning range.  I don't
think it will matter what the tuning range may be.

As the frequency range is increased, the K1 VFO tuning will become "more
touchy" because each degree of rotation on the knob will transverse a
greater frequency range - some K1 owners prefer the narrow tuning for
that reason, but others apparently have a more steady hand on the knob
and do not have a problem with that.

73,
Don W3FPR

On 10/2/2015 1:37 PM, Doug Hensley wrote:

> K1 Fanatics,
> The K1 can apparently be set to have a band spread of 80 kHz or 150.  Can this choice be easily reversed if I wanted to see (aka "experience") the difference in operation?
> Secondly, as the tuning rate increases with the wider band spread, can that be tamed by going to a different VFO encoder or variable pot ?
> Finally, does anyone know if the Cumbria Designs X-Lock VFO stabilizer would help the 150 kHz option ?  ... or is that irrelevant?
> Feel free to reply in private as I am on Digest Mode.
> Thank you,
> Doug W5JV
>
>
>
>  
>
>
>
> From: [hidden email]
> To: [hidden email]
> Subject: RE: W5JV : Fwd: W5JV K1 Order Page questions
> Date: Fri, 2 Oct 2015 11:56:29 -0500
>
>
>
>
> Thank you Craig.  I got it now: the back light is a separate unit all by itself and not part of the LCD.  I was under the mistaken assumption that there were two LCD units and one was backlit.  My mistake.  I appreciate your taking time to answer this dumb question.  I didn't know.
> Doug
>
>
>
>  
>
>
>
> Subject: W5JV : Fwd: W5JV K1 Order Page questions
> To: [hidden email]
> From: [hidden email]
> Date: Fri, 2 Oct 2015 08:18:27 -0700
>
>
>    
>
>      
>    
>    
>      
>
>      
>
>        
>        Hi Doug,
>
>        
>
>        Thank you for your interest in the K1.
>
>        
>
>        Here is the link to purchase the LCD backlight, separately. http://www.elecraft.com/order_form_parts.htm#K1%20Parts
>
>        
>
>        The instructions will show you how to add the backlight to the LCD
>        which comes with the K1.
>
>        
>
>        73,
>        On 10/1/2015 4:46 PM, Lisa Jones
>          wrote:
>
>        
>        
>          
>          [hidden email]
>          
>
>            
>
>            -------- Forwarded Message --------
>            
>              
>                
>                  Subject:
>
>
>                  
>                  K1 Order Page questions
>                
>                
>                  Date:
>
>                  
>                  Thu, 1 Oct 2015 18:20:09 -0500
>                
>                
>                  From:
>
>                  
>                  Doug Hensley <[hidden email]>
>                
>                
>                  To:
>                  
>                  [hidden email]
>                    <[hidden email]>
>                
>              
>            
>            
>
>            
>
>            
>            Hello,
>              
>
>              
>              Does
>
>
>                  a new K1 kit come with the backlight LCD or must that be
>                  ordered in addition to the K1?  And does that mean the
>                  buyer ends up with a spare non-back lit LCD ?
>              
>
>                
>              Thank
>
>
>                  you,
>              
>
>                
>              Doug
>
>
>                  W5JV
>              
>
>                
>              
>                [hidden email]
>                
>
>                
>                
>
>                
>
>                
>
>                
>                
>
>                
>                
>                
>
>                
>                
>
>                
>              
>            
>            
>
>          
>          
>
>        
>        
>
>        
>
>        --
> --------------------------
> Craig Smith W6WL
> Elecraft Customer Support
> 831-763-4211 x 174
> --------------------------
>        
>
>      
>      
>
>      
>
>      --
> --------------------------
> Craig Smith W6WL
> Elecraft Customer Support
> 831-763-4211 x 174
> --------------------------      
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>

______________________________________________________________
Elecraft mailing list
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Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
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