[hpsdr] Fwd: Re: New HPSDR/P*SDR Release - Display, 384K, and more

[H.A.Meijer]

Hi,

Just a little report here.
Running hermes-board and 2.3 firmware and I7 PC W7-64.
Everything seems to work o.k. also on the max panadapter bandwidth of 
1.1MHz,
and even nicer (AM) audio now then before.

Audio buffer size: 2048, sample rate: 384000
Display FPS:60  Bin Width:2.930   DSP buffer Size:8192
Maximal CPU : +/- 23%  and the 100MB  network use : +/-90%.

Things I discovert are that at DSP buffer Size 16384 (max) and in 
combination with ANF or NR enabled that the panadater gets problems to 
stay "real time".
And that at the XVTR setup, when adjusting the RX-gain (to calibrate out 
the transverter gain), the panadapter is not adjusted. the signal meter 
is adjusted o.k..
The NB has some problems in the AM mode.

Thanks for this really nice upgrade, the higher resolution panadapter is 
great for us "weak-signal hunters"  now I'm ready for that "WOW! signal"
Thanks to all that are involved,  Warren, Doug ...

Bert PA2XHF



  Op 3-3-2013 4:48, Warren C. Pratt schreef:
> ***** High Performance Software Defined Radio Discussion List *****
>
>
>
> HPSDR operators,
>
> Does your CPU need more exercise?  Want to see more on your Panadapter?
>
> Doug and I have collaborated on a new release adding some new features:
>
> **Deep FFTs (FFT bin-widths as small as 0.184Hz) -- Mercury, Hermes, 
> and Angelia.
>
> **Wide Spectrum Display (displayable spectrum of over 1 Mhz).  This 
> width is for Hermes, RX1 only at the moment, and at the new 384K 
> sample-rate.  However, Angelia supports a wider display also ... and 
> stay tuned for more announcements!
>
> **Fast Update Rates (up to 60 frames per second at any selectable 
> FFT-size and displayable spectrum width---assuming your CPU is up to 
> the challenge!)
>
> Why might you care?
>
> **Deep FFTs means smaller frequency "bins" which means less noise per 
> bin; this lowers the noise floor and makes weak signals more visible.  
> The smaller bins also mean better frequency resolution on viewed 
> signals and better resolution for frequency calibration.  Those large 
> FFTs make great spur hunters too.
>
> **Wide Spectrum Display---You can see more of what's going on around 
> you in the frequency spectrum.
>
> **Fast Update Rates make the display more interactive and pleasant to 
> view.  They also allow you to better see transient signals that might 
> be missed between less frequent updates.
>
> But, take care!  We're sure some government or its agency has 
> determined that such bold FFT computing could be hazardous to your 
> CPU's health and might induce CPU heat stroke.
>
> As an added bonus, there's a new NoiseBlanker --be sure to reset your 
> NoiseBlanker parameters if you have a job for it.
>
> We hope you enjoy the new release.  More details on usage are found in 
> this document: 
> http://openhpsdr.org/wiki/images/b/b4/POWERSDR_USER_NOTES.pdf .  Be 
> sure to check out the sections on the Panadapter, the NoiseBlanker, 
> and 384K Operation.
>
> Get your copy today!  Download the installer from the openhpsdr.org 
> downloads page or using this link < *PowerSDR_mRX_v3.0.0.0_Setup* 
> <http://svn.tapr.org/repos_sdr_hpsdr/trunk/W5WC/PowerSDR_Installers/PowerSDR_mRX_v3.0.0.0_Setup.msi>(Compiled 
> with MS VS 2010) > .
>
> 73,
>
> Doug  W5WC
>
> Warren  NR0V
>
>
>
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