[Elecraft] New DSP features?

[Martin Sole]

I find the NB in the K3 is very versatile and can usually make a difference.

I rarely use the NR, never found it much use, that goes for other rigs 
too, might just be me.

The APF was a great addition to the K3 firmware but I feel it could 
stand some enhancement, adjustable BW would be very nice and something 
to offset some of the artefacts I feel it adds as it is right now.I 
don't think it needs adjustable centre freq for use as a CW peaking 
filter as only the one freq is of interested. When the Orion added APF 
to its firmware it was variable from 300Hz down to 10Hz with adjustable 
centre frequency. Not so much for CW but a surprisingly useful SSB 
addition. Much like a sweepable EQ it can often be just the thing for 
enhancing a rough voice signal down in the noise.

Better decode capability for some of the more recent digital modes, FT8 
would seem an obvious one but how? Maybe on screen with a P3?

Has DSP hardware advanced significantly since the K3/S was designed? 
Maybe a replacement module with more recent DSP devices might allow even 
more possibilities. But maybe that's K4 land :)

Martin, HS0ZED



On 11/01/2019 06:20, Wayne Burdick wrote:
> Hi all,
>
> The K3/K3S and KX2/KX3 are SDRs, by definition, because they provide demodulation and modulation features via a DSP chip that is programmable.
>
> Our DSP algorithms already give the user all the usual features expected of an all-mode transceiver, and then some:
>
>    - DVR
>    - variable passband filtering & IF shift
>    - audio peaking filter (APF, for CW)
>    - auto-spotting and automatic tuning (CW, PSK)
>    - dual watch (KX2/KX3)
>    - audio effects
>    - DTMF (KX3)
>    - dual-passband filtering for RTTY
>    - FM subaudible tones
>    - data decode/encode in various modes
>    - noise reduction
>    - RX and TX EQ
>    - synchronous AM (K3/K3S)
>    - ESSB
>    - transmit noise gating
>    - speech compression
>    - manual notch filtering
>    - autonotch
>
> ...etc.
>
> That said, here's your chance to dream up *new* DSP features we haven't thought of. All suggestions will be debated by our engineering team, even those that appear radical or implausible at first glance.
>
> We'll keep this to ourselves, so don't worry about being judged for tossing out some wacky ideas. Let's cast a broad net.
>
> Please send all correspondence on this topic directly to yours truly.
>
> 73,
> Wayne
> N6KR
>
>
>
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