The DSP NB causes some artifacts at its higher settings.
Note that the DSP NB works by signal substitution while trying to
maintain frequency rather than just "blasting a hole" in the signal stream.
73,
Lyle KK7P
__
Elecraft mailing l
Part of the back and forth on this thread seems to be over the
definition of "chirp".
The original definition of CW chirp, quite familiar in the 50's and
common, was a signal that went,
"Dwp Dwoooip Dwp Dwoooip
Dwp Dwp Dwoooip Dwp"
The
Is the DSP blanker input level also subject to AGC?
Duncan, W5DC
Wayne Burdick wrote:
> Wes,
>
> The DSP NB causes some artifacts at its higher settings. This is an
> unavoidable side effect of signal processing.
>
> The DSP NB is applied after the crystal filter, so the bandwidth is
> alrea
> Wes
>
> --- On Tue, 12/8/09, Merv Schweigert wrote:
>
>
>> From: Merv Schweigert
>> Subject: Re: [Elecraft] [k3] NB & Chirp
>> To: "Wes Stewart"
>> Cc: "Elecraft Reflector"
>> Date: Tuesday, December 8, 2009, 8:33 AM
&
Wes,
The DSP NB causes some artifacts at its higher settings. This is an
unavoidable side effect of signal processing.
The DSP NB is applied after the crystal filter, so the bandwidth is
already constrained, removing some of the inherent characteristics of
noise pulses, including their rise
Thanks Merv,
So it isn't my imagination as some have inferred.
Wes
--- On Tue, 12/8/09, Merv Schweigert wrote:
> From: Merv Schweigert
> Subject: Re: [Elecraft] [k3] NB & Chirp
> To: "Wes Stewart"
> Cc: "Elecraft Reflector"
> Date: Tuesday, De
Yes, I find on DSP settings on the NB over about 6 that there are some
type of artifacts that make the signal chirp or some sort of distortion.
Merv KH7C
> I worked and have since been listening to J79WE on 40m CW for some time. The
> wind is blowing about 40 mph so the power lines are acting u
One of my first transmitters was a Millen with a keyed 6L6 crystal oscillator
and an 807 final. So I know what chirp sounds like.
It sounded like chirp to me.
Wes
--- On Mon, 12/7/09, Vic K2VCO wrote:
> From: Vic K2VCO
> Subject: Re: [Elecraft] [k3] NB & Chirp
> To: "
Wes Stewart wrote:
> I worked and have since been listening to J79WE on 40m CW for some time. The
> wind is
> blowing about 40 mph so the power lines are acting up and I've been tweaking
> the noise
> blanker.
>
> While playing around I noted that his signal had developed some chirp. I
> thou
I worked and have since been listening to J79WE on 40m CW for some time. The
wind is blowing about 40 mph so the power lines are acting up and I've been
tweaking the noise blanker.
While playing around I noted that his signal had developed some chirp. I
thought that strange, since he was clea
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