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CW/CW-REV config option

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David Gilbert

Re: CW/CW-REV config option

I hardly see the value of extrapolating to the absurd to try to defend
your position.

Dave AB7E

On 4/29/2010 4:50 PM, Ralph Parker wrote:
> Well then, let's just freeze the K3 as it is today, and not make further
> software or hardware changes.
>
> VE7XF
>
>
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Brendan Minish

Re: CW/CW-REV config option

CW / CW-R can also be a very useful QRM fighting tool. the K3 does not
centre the wider roofing filters on the CW passband to maximise opposite
sideband rejection
Switching from CW to CW -R (or vice/versa) places that interfering
signal that is above you (in pitch) below you (in pitch) where the lower
skirt of the filter (&roofing filter) may be much more effective at
filtering out the interfering signal.

This is a great trick if you only have wide roofing filters in your k3,
it's less useful (but sometimes still helpful) even if your K3 is fitted
with narrow roofing filters

--
73
Brendan EI6IZ

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Eric Swartz - WA6HHQ

Re: CW/CW-REV config option [END of Thread]

Administrator

In reply to this post by lstavenhagen

Folks, lets end this thread. No need to beat it to death.

73, Eric
Elecraft List Moderator
----

On 4/29/2010 8:27 PM, lstavenhagen wrote:

>
>> I love the people who say "I don't use that - you don't need it - don't
>>
> implement it!".<
>
> Mostly they're just saying "the rig already does that - RTFM" hi hi.
>
> 73,
> LS
> W5QD
>

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Gary Hinson

Re: K3 CW/CW-REV config option

In reply to this post by Joe Subich, W4TV-4

I prefer CW-R and only occasionally use CW if there is some close-in sig on the high side that I'm
having trouble filtering away.

In Logger32, I have configured the "Setup bands & modes" CW options to read "CW-R", which works fine
when QSYing on DXCluster spots etc. The only thing it doesn't fix for me is automatically
monitoring the NCDXF beacons when the rig uses CW - no big deal really.

[I have another minor irritation with DATA-REV mode being selected sometimes for some reason I
haven't fathomed yet. Again, no big deal so long as I notice - which generally happens after I've
been sending RTTY CQs for ages without reply!!].

73
Gary ZL2iFB

> -----Original Message-----
> From: [hidden email]
> [mailto:[hidden email]] On Behalf Of Joe
> Subich, W4TV
> Sent: Friday, 30 April 2010 11:07 AM
> To: [hidden email]; [hidden email]
> Subject: Re: [Elecraft] CW/CW-REV config option
>
>
> On 4/29/2010 5:42 PM, Rich - K1HTV wrote:
> > However, when rig controlling software programs such as CT, N1MM,
> > RXCLUS, etc. are used, every time the 'CW' mode command is sent by
> > the program to the K3, the radio switches to the 'CW' mode rather
> > that the prefered 'CW-REV' mode.
>
> There is no need to change the K3. N1MM Logger and other
> well designed
> programs (e.g., DXLab Suite) allow the user to select CW or CW-Rev as
> the default when changing bands or "clicking on a spot." RTFM ...
>
> Why add something more to the K3 that will just provide more chance of
> confusing the user when well designed software deals with the radio
> just fine as it is?
>
> 73,
>
> ... Joe, W4TV
>
>
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k1htv

Re: CW/CW-REV config option

In reply to this post by k1htv

W5QD
Hi LS,
The request for consideration sent to Elecraft Support was not for a new way
to set USB and LSB (or CW and CW-REV). It had to do with the way that they and
other tranceiver manufacturers have defined how their radios tune into a CW
signal. Some have defined CW as if it were being received in the way a USB
signal is received. In this case, one tunes into the CW signal from a lower
frequency and after tuning through and past the frequency, the signal rapidly
disappears. Other manufacturers have implemented CW as if it were a LSB signal
with the user tuning down towards the CW signal, it it disappearing after tuning
past it towards a lower frequency.

Like many other CW operators, we have no problem pushing the CW-REV button to
select our prefered option of tuning UP the band and into CW signals. There
are many software programs which simply send a mode switch command as 'CW'.
Some programs have a 'CW-REV' mode switch command available, but many don't. I
chose to use three pieces of radio controlling software which suit my
operational needs, two of which simply send a 'CW' command.

The problem is that when a program sends a 'CW' command, the K3 switches from my
prefered way to tuning (CW-REV ) back to (CW). Having to push the CW-REV button
after each software mode switch is an annoyance in casual operation but becomes
much more of a pain while operating in a contest environment.

In the future, I may use other programs which I find to be excellent and fit my
operating needs, but may NOT have the CW/CW-REV option. I have chosen the track
of making a request to the manufacturer of my K3 radio and not to multiple
software producers.

The transceiver manufacturers are not in agreement on this CW/CW-REV issue. The
result is that the 'CW' mode on these radios will performs in opposite ways of
tuning into CW signals as described above. My suggestion to Elecraft Support
was that they consider this difference and give the user the option of DEFINING
how the CW and CW-REV commands respond to reflect their tuning preferences.

As you can tell from the response on this topic, there are CW users on both
sides of this issue. Some have suggested that having this option will confuse
some users. Well, there are already plenty of options which now do this. But
those same options have allowed many users to optimize the K3 to their operating
preferences.

One of the reasons why Elecraft is the great success that they are today is
because they listen to the suggestions and recommendations of the users of the
equipment that they manufacture.

73,
Rich - K1HTV

= = =

From: lstavenhagen <[hidden email]>
Subject: Re: [Elecraft] CW/CW-REV config option
To: [hidden email]
Message-ID: <[hidden email]>
Content-Type: text/plain; charset=us-ascii

I would also agree to leave the K3 as-is. I don't see why there needs to be more
ways to set USB and LSB.... just hold CW-Rev to get to the other one.....

73,
LS
W5QD

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Joe Subich, W4TV-4

Re: CW/CW-REV config option

On 5/1/2010 10:12 AM, Rich - K1HTV wrote:
> Some programs have a 'CW-REV' mode switch command available, but
> many don't. I chose to use three pieces of radio controlling
> software which suit my operational needs, two of which simply send
> a 'CW' command.

The issue should not be one of the K3 changing its interface to suit
software. The authors of the software should update their software
to support the hardware - just as they have done over the years to
support other new hardware.

The K3 is not the only transceiver that defaults to "LSB" CW reception.

Again, this is yet another case of "gotta make the K3 act just like
my YaeComWood." If you want a Kenwood, buy a Kenwood.

73,

... Joe, W4TV

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Guy, K2AV

Re: CW/CW-REV config option

Or is it a matter of asking the manufacturer/programmer which has a
reputation of responsiveness?

To be fair to others, particularly the many utility programmers, I
have had very good luck with a request for a program option. I HAVE
managed to get various things added. Particularly when I started out
with "this is one of my favorite programs." which was true since I
wouldn't bother to request a change unless I used it a lot.

Someone else got MM logger to add the use rev CW switch when the K3
became a major player. K3 IS now a major player...go ask your
programmers to add "use rev cw"? See what they say.

73, Guy.

On Sat, May 1, 2010 at 10:32 AM, Joe Subich, W4TV <[hidden email]> wrote:

>
> On 5/1/2010 10:12 AM, Rich - K1HTV wrote:
> > Some programs have a 'CW-REV' mode switch command available, but
> > many don't. I chose to use three pieces of radio controlling
> > software which suit my operational needs, two of which simply send
> > a 'CW' command.
>
> The issue should not be one of the K3 changing its interface to suit
> software. The authors of the software should update their software
> to support the hardware - just as they have done over the years to
> support other new hardware.
>
> The K3 is not the only transceiver that defaults to "LSB" CW reception.
>
> Again, this is yet another case of "gotta make the K3 act just like
> my YaeComWood." If you want a Kenwood, buy a Kenwood.
>
> 73,
>
> ... Joe, W4TV
>
>
> ______________________________________________________________
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>