Thanks for the great explanations.
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This is true of the hardware blanker in the K3.
The DSP blanker works on a different principle, in part
because the noise pulse has potentially been "stretched"
by the selectivity of the roofing filter.
In the DSP blanker, for the duration of the noise pulse, a
locally generated signal is subs
As usual, Don's explanation is dead on.
There's one more point to make about the noise blanker. Because it switches
the receive path off and on to product those holes were the noise pulse
would otherwise come through, it is a "mixer". That is, any signals in the
signal path that are being switche
As a brand new K3 user, I find some of the NR DSP settings quite perplexing.
In working some nets, e.g. MARS, I've found some stations' audio almost
totally suppressed, while others enhanced. Unfortunately, this process is
not consistent, but changes as the "noise picture" changes. Trial and error
Wow Don, great explanation !
Bob
K6UJ
On Sep 29, 2011, at 8:51 PM, Don Wilhelm wrote:
> The K3 noise blanker, and in fact any noise blanker works by producing
> "holes" in the receive path. That is what blanking means - if an
> impulse is detected, it shuts off the receive path for a spe
The K3 noise blanker, and in fact any noise blanker works by producing
"holes" in the receive path. That is what blanking means - if an
impulse is detected, it shuts off the receive path for a specified
period of time.
That will not "take away" from the reception of faint signals, but if
comb
Hi,
I was wondering if anyone could give me some hints as to the best way to use
the NB and the NR?
Most of the time I use the nr and there seems to be little effect of the nb
(maybe one-two s units?) Does the nb take away from faint signals? If not
should I always just use it?
Thanks
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Vi
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