K3: Desired AM mode improvements

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Re: K3: Desired AM mode improvements

KK7P
> ... Also, independent sideband selection would be nice as
> well.

You can do this with the SubRx.  Set one Rx for USB, the other Rx for
LSB, LINK the VFOs and you have it.

Yes, I know, the SubRx is not shipping yet.  But they *are* being
manufactured and the one in my K3 *is* working.

73,

Lyle KK7P

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Re: K3: Desired AM mode improvements

KK7P
In reply to this post by Bob Serwy
> This hobby is not only for CW and SSB ops.  The K3 developers can accept or
> disregard any or all suggestions on this reflector.  

I may not comment on many things here, but I try and monitor the
reflector as best I can.

The firmware currently being tested does FM (w/CTCSS encode, repeater
splits, etc.) and has wider AM receive bandwidth.  It has better low
frequency SSB response, better ALC, and a number of other enhancements.

AM-Sync is further down the list, but it *is* on the list.

73,

Lyle KK7P

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Re: K3: Desired AM mode improvements

Stewart Baker
I just hope that "bug fixes" come above everything else on the
list.

73
Stewart G3RXQ
On Fri, 18 Apr 2008 09:21:47 -0700, Lyle Johnson wrote:
>> This hobby is not only for CW and SSB ops.  The K3 developers
can accept or
>> disregard any or all suggestions on this reflector.
>>
> I may not comment on many things here, but I try and monitor the
> reflector as best I can.
>
> The firmware currently being tested does FM (w/CTCSS encode,
repeater
> splits, etc.) and has wider AM receive bandwidth.  It has better
low
> frequency SSB response, better ALC, and a number of other
enhancements.

>
> AM-Sync is further down the list, but it *is* on the list.
>
> 73,
>
> Lyle KK7P
>
> _______________________________________________
> Elecraft mailing list
> Post to: [hidden email]
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RE: K3: Desired AM mode improvements

Ed Muns, W0YK
> I just hope that "bug fixes" come above everything else on the list.

I hope bug fixes are prioritized appropriately on the list and many lower
priority bug fixes not addressed until options like the KRX3 are released.

73,
Ed - W0YK

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K3 CW Rx Audio

P.B. Christensen
In reply to this post by KK7P
I tried something last night that may be of interest to some CW ops.
Although most of us are always in search of ways to narrow CW bandwidth,
there are times when listening to CW is made more enjoyable when the
receiver is allowed to open up a bit, especially with AFX activated.

In order to engage in wideband CW reception with the wider crystal and DSP
filters, press SPLIT, then A=>B.  Set VFO A for either LSB or USB.  Then,
set VFO B to CW.  Next, press and hold the SUB button to link VFO A with VFO
B.  The CW offset can be made to match the sidetone frequency by setting VFO
A and B to slightly different frequencies (difference being the side-tone
frequency).  I stored my settings into memory so I don't have to go through
all the gyrations next time.  With this approach, the rig is transmitting CW
on VFO B, but listening in either LSB or USB on VFO A.

It's important to set the Rx frequency on VFO A up by the offset amount
(e.g., 600 Hz) for CW LSB receive, and down by the offset amount for CW USB
receive.  My tests show that QSK performance remains super-fast and is not
affected with this procedure.

Paul

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Re: K3 CW Rx Audio

John Unger-2
I'm still waiting for my K3, but...

I guess from the fact that you went through these gyrations means that one
can't simply set the roofing filtering selection on "auto" and dial in a
DSP width of 2700 Hz., e.g., or whatever with a K3 and have the 2700 Hz.
SSB filter as the roofing filter; like I can with my Orion?

What am I missing?


73 - John, W4AU

At 04:56 PM 4/20/2008, you wrote:

>I tried something last night that may be of interest to some CW ops.
>Although most of us are always in search of ways to narrow CW bandwidth,
>there are times when listening to CW is made more enjoyable when the
>receiver is allowed to open up a bit, especially with AFX activated.
>
>In order to engage in wideband CW reception with the wider crystal and DSP
>filters, press SPLIT, then A=>B.  Set VFO A for either LSB or USB.  Then,
>set VFO B to CW.  Next, press and hold the SUB button to link VFO A with
>VFO B.  The CW offset can be made to match the sidetone frequency by
>setting VFO A and B to slightly different frequencies (difference being
>the side-tone frequency).  I stored my settings into memory so I don't
>have to go through all the gyrations next time.  With this approach, the
>rig is transmitting CW on VFO B, but listening in either LSB or USB on VFO A.
>
>It's important to set the Rx frequency on VFO A up by the offset amount
>(e.g., 600 Hz) for CW LSB receive, and down by the offset amount for CW
>USB receive.  My tests show that QSK performance remains super-fast and is
>not affected with this procedure.
>
>Paul
>_______________________________________________
>Elecraft mailing list
>Post to: [hidden email]
>You must be a subscriber to post to the list.
>Subscriber Info (Addr. Change, sub, unsub etc.):
>http://mailman.qth.net/mailman/listinfo/elecraft
>
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>Elecraft web page: http://www.elecraft.com
>
>
>--
>No virus found in this incoming message.
>Checked by AVG. Version: 7.5.524 / Virus Database: 269.23.2/1387 - Release
>Date: 4/19/2008 11:31 AM

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Re: K3 CW Rx Audio

Bob Cunnings NW8L
Yes, you can - just as you do with your Orion. Sometimes I open it up
to 1500 Hz or so in CW mode when I'm tuning around the band.

Bob NW8L

On Sun, Apr 20, 2008 at 4:39 PM, John Unger <[hidden email]> wrote:

> I'm still waiting for my K3, but...
>
>  I guess from the fact that you went through these gyrations means that one
> can't simply set the roofing filtering selection on "auto" and dial in a DSP
> width of 2700 Hz., e.g., or whatever with a K3 and have the 2700 Hz. SSB
> filter as the roofing filter; like I can with my Orion?
>
>  What am I missing?
>
>
>  73 - John, W4AU
>
>
>
>  At 04:56 PM 4/20/2008, you wrote:
>
> >
> >
> >
> > I tried something last night that may be of interest to some CW ops.
> Although most of us are always in search of ways to narrow CW bandwidth,
> there are times when listening to CW is made more enjoyable when the
> receiver is allowed to open up a bit, especially with AFX activated.
> >
> > In order to engage in wideband CW reception with the wider crystal and DSP
> filters, press SPLIT, then A=>B.  Set VFO A for either LSB or USB.  Then,
> set VFO B to CW.  Next, press and hold the SUB button to link VFO A with VFO
> B.  The CW offset can be made to match the sidetone frequency by setting VFO
> A and B to slightly different frequencies (difference being the side-tone
> frequency).  I stored my settings into memory so I don't have to go through
> all the gyrations next time.  With this approach, the rig is transmitting CW
> on VFO B, but listening in either LSB or USB on VFO A.
> >
> > It's important to set the Rx frequency on VFO A up by the offset amount
> (e.g., 600 Hz) for CW LSB receive, and down by the offset amount for CW USB
> receive.  My tests show that QSK performance remains super-fast and is not
> affected with this procedure.
> >
> > Paul
> > _______________________________________________
> > Elecraft mailing list
> > Post to: [hidden email]
> > You must be a subscriber to post to the list.
> > Subscriber Info (Addr. Change, sub, unsub etc.):
> > http://mailman.qth.net/mailman/listinfo/elecraft
> >
> > Help: http://mailman.qth.net/subscribers.htm
> > Elecraft web page: http://www.elecraft.com
> >
> >
> > --
> > No virus found in this incoming message.
> > Checked by AVG. Version: 7.5.524 / Virus Database: 269.23.2/1387 - Release
> Date: 4/19/2008 11:31 AM
> >
>
>
>  _______________________________________________
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Re: K3 CW Rx Audio

Don Wilhelm-4
In reply to this post by John Unger-2
John,

I have only the stock 2.7k filter in my K3, and in either CW or SSB
mode, I can dial a bandwidth in excess of 2.8 kHz.  It should work the
same way even if the narrow filters are installed - the filter selected
automatically follows the DSP bandwidth.

73,
Don W3FPR

John Unger wrote:

> I'm still waiting for my K3, but...
>
> I guess from the fact that you went through these gyrations means that
> one can't simply set the roofing filtering selection on "auto" and
> dial in a DSP width of 2700 Hz., e.g., or whatever with a K3 and have
> the 2700 Hz. SSB filter as the roofing filter; like I can with my Orion?
>
> What am I missing?
>
>
> 73 - John, W4AU
>
> At 04:56 PM 4/20/2008, you wrote:
>> I tried something last night that may be of interest to some CW ops.
>> Although most of us are always in search of ways to narrow CW
>> bandwidth, there are times when listening to CW is made more
>> enjoyable when the receiver is allowed to open up a bit, especially
>> with AFX activated.
>>
>> In order to engage in wideband CW reception with the wider crystal
>> and DSP filters, press SPLIT, then A=>B.  Set VFO A for either LSB or
>> USB.  Then, set VFO B to CW.  Next, press and hold the SUB button to
>> link VFO A with VFO B.  The CW offset can be made to match the
>> sidetone frequency by setting VFO A and B to slightly different
>> frequencies (difference being the side-tone frequency).  I stored my
>> settings into memory so I don't have to go through all the gyrations
>> next time.  With this approach, the rig is transmitting CW on VFO B,
>> but listening in either LSB or USB on VFO A.
>>
>> It's important to set the Rx frequency on VFO A up by the offset
>> amount (e.g., 600 Hz) for CW LSB receive, and down by the offset
>> amount for CW USB receive.  My tests show that QSK performance
>> remains super-fast and is not affected with this procedure.
>>
>> Paul
>> _______________________________________________
>> Elecraft mailing list
>> Post to: [hidden email]
>> You must be a subscriber to post to the list.
>> Subscriber Info (Addr. Change, sub, unsub etc.):
>> http://mailman.qth.net/mailman/listinfo/elecraft
>>
>> Help: http://mailman.qth.net/subscribers.htm
>> Elecraft web page: http://www.elecraft.com
>>
>>
>> --
>> No virus found in this incoming message.
>> Checked by AVG. Version: 7.5.524 / Virus Database: 269.23.2/1387 -
>> Release Date: 4/19/2008 11:31 AM
>
> _______________________________________________
> Elecraft mailing list
> Post to: [hidden email]
> You must be a subscriber to post to the list.
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>
>
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