On 5/29/2019 22:12, Jim Brown wrote:
BEFORE the days of microprocessors, switch-mode power supplies, and
other power control systems that use square waves, nearly all man-made
noise was impulse noise. NOW, most of the noise that surrounds us is
from those microprocessors, switch-mode supplies,
On 5/29/2019 6:57 PM, Fred Jensen wrote:
Noise blankers were designed for repetitive impulse noise, the largest
former example of which was ignition noise from vehicles. They have
not ever been very effective against power line hash which tends to be
non-impulsive and highly random.
Huh?
On 5/29/2019 20:57, Fred Jensen wrote:
Noise blankers were designed for repetitive impulse noise, the largest
former example of which was ignition noise from vehicles. They have
not ever been very effective against power line hash which tends to be
non-impulsive and highly random.
That has
Noise blankers were designed for repetitive impulse noise, the largest
former example of which was ignition noise from vehicles. They have not
ever been very effective against power line hash which tends to be
non-impulsive and highly random. These days, repetitive ignition noise
is not a
I've never found the K3 noise blanker to be very effective on power line
noise, and I've tried all possible combinations of settings. If the K4
noise blanker were really effective on line noise, I might buy one.
73,
Scott K9MA
On 5/29/2019 20:39, Wayne Burdick wrote:
There are some
> Gary Smith wrote:
>
> At this time there are no nearby hams to
> disrupt my K3s. There are no local AM
> broadcasters that come in as overload. I
> do have issues with a few 2nd harmonic
> stations from the BC band, one for example
> from S. America on 1.8400. I won't likely
> be using
Thanks for the reply,
As I require diversity , the K4D is
necessary, as I also require an autotuner,
I need that as well. The costs are adding
up.
I certainly don't want a new rig that has
in any way, less capability than the fully
loaded K3s I have now. If a K4HD with
autotuner is
Any of these things you mentioned might not bother you now BECAUSE you are
using a K3.
The K4D adds a second A/D chain with dedicated front end filters for whatever
band the second receiver is tuned to. Plus diversity reception.
I seem to recall some reference to a “wide-band” mode, which
At this time there are no nearby hams to
disrupt my K3s. There are no local AM
broadcasters that come in as overload. I
do have issues with a few 2nd harmonic
stations from the BC band, one for example
from S. America on 1.8400. I won't likely
be using my K4 at a contest site and I am
the
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