[Elecraft] Re: SSB BW 6Khz with FL1=2.8Khz

[wayne burdick]

Leigh,

I have a task on the firmware list to restrict the DSP bandwidth to no 
greater than that of the widest installed filter. Even though you can 
widen it further, at present, it won't be very useful, and would 
probably just slightly increase the noise in the AF passband.

If you notice anything else, feel free to e-mail me directly.

73,
Wayne
N6KR


On Nov 13, 2007, at 10:29 PM, Leigh L. Klotz, Jr. wrote:

> I finished K3#51 (as far as QRP) a couple of hours ago, and have a 
> filter question.
>
> I have FL1 setup as 2.8Khz and confirmed it in FL1 BW as 2.80.
> When I am in USB or LSB mode, I can adjust the width past 2.8 up to 
> 6.0.
> The bar graph display maxes out at 3.60.  There does seem to be an 
> effect on the audio.
>
> I assume this means that the DSP filter is adjusted to pass the skirts 
> of the 2.8Khz filter instead of cleaning them up.
> Is there a section in the manual I should read about these widths 
> large-than-life widths, or any experience with them?
>
> 73,
> Leigh/WA5ZNU
>
>
> _______________________________________________
> Elecraft mailing list
> Post to: Elecraft at mailman.qth.net
> 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
>
>

---

http://www.elecraft.com