[hpsdr] PowerSDR/OpenHPSDR mRX PS v3.3.8 released

[Scott Traurig]

Excellent, Mike! I find that I can now run WINMOR, an ARQ mode, without
having to back off the filters to 256.

73!

Scott/w-u-2-o


On Thu, Jun 9, 2016 at 10:46 PM, Michael Cozzi <cozzicon at gmail.com> wrote:

> ***** High Performance Software Defined Radio Discussion List *****
>
>
>
>     Scott,
>     After testing digimodes into a dummy load as repeating transmission-
> can confirm your comments.
>
>      I'm capable of AISO, though not using it. My VAC setup is highly
> tweaked though, and I think I'm seeing about 45ms latency. I was running at
> quite higher with this setup. A great improvement.
>
>     I was happy before... so does that make more more than happy?
>
>     Michael KD8TUT
>
> On 6/9/2016 8:43 PM, Scott Traurig wrote:
>
> ***** High Performance Software Defined Radio Discussion List *****
>
>
>
>
> This is a *major* leap in SDR performance. With a primary buffer of 128,
> VAC buffer of 128, DSP buffers of 64, and using the Low Latency (aka
> minimum phase) filters, with VAC and ASIO drivers I'm seeing <30mS of
> transmit latency.
>
> Guys, this is CLASS LEADING performance. Equal to or better than any other
> direct sampling SDR radio with the possible exception of the IC-7300, and
> better than some IF DSP SDRs like the K3.
>
> Given appropriate VAC software/hardware, i.e. ASIO and a PCIE sound card,
> VAC is actually a few milliseconds faster than a mic and speaker directly
> connected to the radio.
>
> The Low Latency filters are working great. The group delay of the
> ionosphere is far worse than any group delay in those filters and no
> difference in performance, other than the fantastic latency, is evident
> compared to the linear phase filters.
>
> Great stuff!
>
> 73!
>
> Scott/w-u-2-o
>
>
>
>
>
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