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K3. Hi/lo cut

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mikerodgerske5gbc

K3. Hi/lo cut

It was mentioned in the roofing or if filter post that using hi/lo cut was easier than bandwidth shift. That you can see the filters change as you bring hi cut down.
I thought width and shift was in the I F and cut in the audio. Are they essentially the same or have the same effect ?

Signed confused

Happy QSO'ing. Mike R

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KK7P

Re: K3. Hi/lo cut

SHIFT/WIDTH and HI CUT/LO CUT are two ways of ajsting exactly the same
filtering at both IF and AF simultaneously.

Many operators find HI CUT/LO CUT easier to use when operating SSB, and
SHIOFT/WIDTH easier to use when operating CW and DATA modes.

73,

Lyle KK7P

> I thought width and shift was in the I F and cut in the audio. Are they essentially the same or have the same effect ?

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The Smiths

Re: K3. Hi/lo cut

In reply to this post by mikerodgerske5gbc

All the same thing, just a different way of hearing what it's doing. If you adjust the Hi/Lo then switch back to Shift and Width you'll see what changes you have made.

> Date: Fri, 29 Oct 2010 16:40:12 -0700
> From: [hidden email]
> To: [hidden email]
> Subject: [Elecraft] K3. Hi/lo cut
>
> It was mentioned in the roofing or if filter post that using hi/lo cut was easier than bandwidth shift. That you can see the filters change as you bring hi cut down.
> I thought width and shift was in the I F and cut in the audio. Are they essentially the same or have the same effect ?
>
> Signed confused
>
> Happy QSO'ing. Mike R
>
>
>
> ______________________________________________________________
> 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

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Don Wilhelm-4

Re: K3. Hi/lo cut

In reply to this post by mikerodgerske5gbc

Mike,

They are both done in the DSP IF, not at audio.
They are two different ways of achieving the same thing. I use width
and shift for CW, but use HI/LO cut for SSB. As you indicated, the
voice signal retains intelligibility if only HI cut is changed, but
looses intelligibility quickly as the LO cut is move much above 300 Hz.

73,
Don W3FPR

On 10/29/2010 7:40 PM, Mike Rodgers wrote:

> It was mentioned in the roofing or if filter post that using hi/lo cut was easier than bandwidth shift. That you can see the filters change as you bring hi cut down.
> I thought width and shift was in the I F and cut in the audio. Are they essentially the same or have the same effect ?
>
> Signed confused
>
> Happy QSO'ing. Mike R
>
>
>
> ______________________________________________________________
> 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
>