Dumb K1 Question

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Dumb K1 Question

Dr. Dan Swartling
Okay, K1 #2222 is alive and well! and I have installed the 4 band module
wired for 40, 30, 20 and 17. I also built a 2 band module for 80 and 15.

I was just playing with it and it receives very well on all 4 bands, but
when I tuned in some 17m SSB sigs I couldn't quite get them in clearly, so
I looked for a button to push to change sidebands and can't find one. So,
is the K1 really a CW only rig or did I miss something in the menus? I
really like it, and it has that "cute" factor going for it, but it would be
nice to tune in SSB on 17m if I can. If not, oh well...

Dan
WB4NMR

-----
KX1 #1507
K1   #2222
K2  #xxxx  

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Re: Dumb K1 Question

Sandy W5TVW
Problem is:  the K1 is offset for "lower sideband" so you will get garbles on 17 meters!
You'd get the same on 20 if you could tune that high.

The K1 is primarily a CW only rig.

73,
Sandy W5TVW
 K1  #1178
----- Original Message -----
From: "Dr. Dan Swartling" <[hidden email]>
To: <[hidden email]>
Sent: Tuesday, July 25, 2006 12:54 PM
Subject: [Elecraft] Dumb K1 Question


| Okay, K1 #2222 is alive and well! and I have installed the 4 band module
| wired for 40, 30, 20 and 17. I also built a 2 band module for 80 and 15.
|
| I was just playing with it and it receives very well on all 4 bands, but
| when I tuned in some 17m SSB sigs I couldn't quite get them in clearly, so
| I looked for a button to push to change sidebands and can't find one. So,
| is the K1 really a CW only rig or did I miss something in the menus? I
| really like it, and it has that "cute" factor going for it, but it would be
| nice to tune in SSB on 17m if I can. If not, oh well...
|
| Dan
| WB4NMR
|
| -----
| KX1 #1507
| K1   #2222
| K2  #xxxx  
|
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Re: Dumb K1 Question

Mark Bayern-2
The K2 has a "CW-REV" feature that uses the 'other sideband'.  Does
the K1?  Would this help?

Mark


On 7/25/06, Sandy W5TVW <[hidden email]> wrote:
> Problem is:  the K1 is offset for "lower sideband" so you will get garbles on 17 meters!
> You'd get the same on 20 if you could tune that high.
>
> The K1 is primarily a CW only rig.
>
> 73,
> Sandy W5TVW
>  K1  #1178
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Re: Dumb K1 Question

wayne burdick
Administrator
In reply to this post by Dr. Dan Swartling

On Jul 25, 2006, at 10:54 AM, Dr. Dan Swartling wrote:

>
> I was just playing with it and it receives very well on all 4  
> bands, but when I tuned in some 17m SSB sigs I couldn't quite get  
> them in clearly, so I looked for a button to push to change  
> sidebands and can't find one. So, is the K1 really a CW only rig or  
> did I miss something in the menus? I really like it, and it has  
> that "cute" factor going for it, but it would be nice to tune in  
> SSB on 17m if I can. If not, oh well...

Hi Dan,

The K1 is a CW-only rig. SSB copy is difficult--because of the narrow  
crystal filter bandwidth--even for the "native" sideband (LSB). You  
can widen the filter to about 2 kHz and thus copy LSB with decent  
fidelity if you add a switch to the right side panel that temporarily  
substitutes 8V DC for the normal tuning voltage used by the varactor  
diodes in the crystal filter. To copy USB, you'd have to add another  
switch that temporarily switches in a different reactance in series  
with the BFO crystal, pulling it to the other side of the filter.

73,
Wayne
N6KR

-------

http://www.elecraft.com


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