K2 improvements

[DOUGLAS ZWIEBEL]

In no particular order (all are needed).


1.  MUCH BETTER QSK

2.  Stable output power

3.  Opto-coupler for RIT/XIT (don't take away XIT and substitute IF
shift) with CLEAR function

4.  As turn RIT/XIT, have offset (in KHz) momentarily replace freq
display so we can see the amount of offset (essential for XIT).  Ala
K3.

5.  MUCH BETTER QSK

de Doug KR2Q
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[Darwin, Keith]

I've loved the QSK performance of my K2 and feel it is superior to the
several TenTec rigs I've owned.  Could you be more specific as to what
needs to be improved?

Thanks!

- Keith N1AS -
- K2 5411.ssb.100 -

-----Original Message-----
From: DOUGLAS ZWIEBEL

1.  MUCH BETTER QSK
5.  MUCH BETTER QSK
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[N2TK]

Totally agree with you, especially the QSK.
N2TK, Tony
#3481

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of DOUGLAS ZWIEBEL
Sent: Friday, May 04, 2007 9:19 AM
To: [hidden email]
Subject: [Elecraft] K2 improvements

In no particular order (all are needed).


1.  MUCH BETTER QSK

2.  Stable output power

3.  Opto-coupler for RIT/XIT (don't take away XIT and substitute IF
shift) with CLEAR function

4.  As turn RIT/XIT, have offset (in KHz) momentarily replace freq
display so we can see the amount of offset (essential for XIT).  Ala
K3.

5.  MUCH BETTER QSK

de Doug KR2Q
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[N2TK]

I can't get above about 16WPM and hear clearly between the dits like I am
doing right now with my TS950SDX as I try to work BS7H.
N2TK, Tony

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Darwin, Keith
Sent: Friday, May 04, 2007 9:41 AM
To: [hidden email]
Subject: RE: [Elecraft] K2 improvements

I've loved the QSK performance of my K2 and feel it is superior to the
several TenTec rigs I've owned.  Could you be more specific as to what
needs to be improved?

Thanks!

- Keith N1AS -
- K2 5411.ssb.100 -

-----Original Message-----
From: DOUGLAS ZWIEBEL

1.  MUCH BETTER QSK
5.  MUCH BETTER QSK
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[Bill Coleman-2]

On May 4, 2007, at 9:18 AM, DOUGLAS ZWIEBEL wrote:

> 1.  MUCH BETTER QSK

There is a mod out there for faster QSK. I find the QSK operation to  
be quite good myself, but then I'm no QRQ operator, either.

> 2.  Stable output power

When you are trying to tune your amp, this is annoying.

> 3.  Opto-coupler for RIT/XIT (don't take away XIT and substitute IF
> shift) with CLEAR function

That's going to be a pretty big mod -- are we going to replace the  
entire front panel board? Where would we put the

> 4.  As turn RIT/XIT, have offset (in KHz) momentarily replace freq
> display so we can see the amount of offset (essential for XIT).  Ala
> K3.

Better yet, when we rotate the offset, have it display, much as with  
the Power and Keyer Speed controls -- that way, you can dial it back  
to zero. This is a great idea.

I personally don't see much use for XIT. I'd rather use SPLIT and put  
the Tx frequency in VFO B. I can just hold REV and hear my Tx frequency.


Bill Coleman, AA4LR, PP-ASEL        Mail: [hidden email]
Quote: "Not within a thousand years will man ever fly!"
             -- Wilbur Wright, 1901

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[drewko]

Would be nice to be able to change the sidetone/offset without having
to manually re-align the BFO frequencies. Sometimes a high tone sounds
good, sometimes low, depending on conditions.

73,
Drew
AF2Z

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[PA5MW]

[hidden email] wrote:
> Would be nice to be able to change the sidetone/offset without having
> to manually re-align the BFO frequencies. Sometimes a high tone sounds
> good, sometimes low, depending on conditions.
>  
That can already be done:

- programm TWO   IF filter settings with the exact same bandwidth
- programm BFO settings with a slight difference to match your taste

Spectral analysis programms like Spectran etc. can be of great help here
to understand what is going on.
I'm using two similar OP1 filter settings for weak SSB reception from my
XV144 transverter.
And you're right; sometimes the one provides better recognition than the
other.


'73 Mark, PA5MW

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