Hi Wayne,
That's the sort of thing I was thinking of. I think Collins did
something like that back in the 50's. Even if it meant dedicating the
sub RX to noise detection, it would be worthwhile in high noise
environments. I've thought of trying to modify the K3 to do something
like this, but
Hi Scott,
We could trigger the main RX noise blanker from the sub RX, though we haven't
tried this yet. I believe this would achieve what you're describing. For
example, the sub RX could be tuned to 13.975 while the main is tuned to the 20
meter CW band.
73,
Wayne
N6KR
> On Nov 10, 2019, at
On 11/10/2019 19:06, Wayne Burdick wrote:
The K4, being an SDR, provides access to a different class of wide-band NR and
NB algorithms.
Some hardware noise blankers are very effective at reducing line noise
and other impulse-type noise, provided there are no strong signals
within the 15 kHz
> John Stengrevics wrote:
>
> Hi Wayne,
>
> Do you have any information about:
>
> 1. Sensitivity or noise floor of the K4 relative to the K3S?
Similar, but with finer-grain control. The K4 has 3 preamp settings and 8
attenuator levels per-band/per-receiver. As with the K3S, an LNA (low
Hi Wayne,
Do you have any information about:
1. Sensitivity or noise floor of the K4 relative to the K3S?
2. Noise blanking and noise reduction effectiveness relative to the K3S? In
the regard, will noise reduction be disabled on digital modes as does the K3S?
73,
John
WA1EAZ
> On Nov
> Art Suberbielle wrote:
>
> Wondering if the K-4 will remember settings of RF/AF gain per band?
Hi Art,
RF gain and squelch are per-band, per-receiver, as are the preamp and
attenuator controls.
There's an AF gain control for each receiver that applies to all bands.
> Also, what
Wondering if the K-4 will remember settings of RF/AF gain per band?
Also, what amount of reduction in db will the Attenuation provide?
Thanks.
Art KZ5D
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