[hpsdr] PowerSDR/OpenHPSDR mRX PS v3.3.2 released

[H.A. Meijer]

Thanks Doug,

Hope te be radio active again within a couple of weeks from my new shack ( and
home).
Can't wait to test the latest software releases.h.i.

73'  Bert Pa2XHF.


> Op 7 juli 2017 om 18:05 schreef Doug W5WC <w5wc at windstream.net>:
> 
> 
> ***** High Performance Software Defined Radio Discussion List *****
> 
> All,
> 
> PowerSDR/OpenHPSDR mRX PS v3.4.2, July 5, 2017 has been released.
>  
> This release can be downloaded from the TAPR Github website.
> https://github.com/TAPR/OpenHPSDR-PowerSDR/releases
> 
> This release contains the following changes/fixes:
> 
> Band Stacks - import and size:
> This modification adds the capability to import BandStack information from
> an older database, especially useful on starting up a new version, or simply
> importing while already  running on a current version database.  In 3.4.1
> this was not yet handled.  In addition, the bandstacks have been increased
> to be 5-deep instead of 3.
> 
> CW Filter controls and setup:
> This modification fixes the problem of CW filters not getting saved, and
> worse, being lost whenever band changes or mode changes are made. It also
> makes the actions of the width/shift/hi/lo/CWpitch controls all act more
> consistently and intuitively, specifically for CW operation.  See details
> section below.
> 
> CTUN operation:
> CTUN has been modified to make mode changes behave in similar ways, whether
> CTUN is on or off, and are identical to the way they always worked with CTUN
> off in previous versions.  Behavior when tuning has also changed.  As the
> VFO approachs the edge of the display, instead of disappearing off the edge
> or stopping, the display re-centers itself so tuning is continuous, even in
> CTUN mode. The re-centering occurs as the edge of the passband hits the edge
> of the display, in order to keep any signals of interest visible even as it
> approaches the edge.  In addition, zooming in while in CTUN mode
> automatically centers the VFO in the spectrum display so that a signal of
> interest (i.e. the one you're tuned to) gets zoomed in on, as is usually the
> intent.  When zooming out, re-centering doesn't occur, since that wouldn't
> cause the VFO to disappear off the edge of the display.
> 
> ----------------------------------------------------------------------------
> -----------------------
> CW Filter operation details:
> 
> There are several adjustments that affect the receiver filter settings in CW
> modes.  They are: Filter buttons, Width, Shift, High, Low, and CWPitch, and
> they are somewhat interdependent.
> 
> Filter Buttons
> The filter selection buttons choose pre-defined receiver bandpass filters.
> They are customizable by right clicking on each button and then choosing its
> width, or low and high limits.  For CW it is recommended that you initially
> choose a passband centered on the CW Pitch frequency, since CW filters will
> automatically be centered whenever the CW Pitch is changed.
> 
> Width
> Sliding the Width control automatically switches to the Var1 filter so that
> your pre-defined Filter buttons aren't changed from the width for which you
> set them up and labeled them.  Moving the slider left decreases the passband
> width while sliding right increases it. As you increase width, one of the
> passband edges (the upper edge in the "Lower" 
> modes such as CWL, or the lower edge in the "Upper" modes, like CWU)
> approaches the limit where opposite sideband images appear (i.e. a value of
> zero (0) in High or Low).  When this happens, the width continues to
> increase but only in one direction - downward in a "Lower" mode, and upward
> in an "Upper" mode - so as to keep from hearing these images.  If you
> subsequently move the passband across the sideband (image) boundary,
> enforcement of the boundary ceases and you can change the width centered on
> wherever you've moved the passband with the Shift control. When you move the
> passband back across this boundary, the width control again obeys this
> limit. Clicking on a filter button other than Var1 resets the receiver to
> the filter settings assigned to that button, but Var1 remains as you set it,
> until you change it again, either by clicking on
> Var1 or having it be automatically selected by using one of the adjustments.
> 
> Shift
> Sliding the Shift control automatically switches to the Var1 filter so that
> your Filter buttons aren't changed from how you set them up.  
> Moving the slider left shifts the passband down in frequency while moving it
> right shifts the passband upward. The passband shift is not restricted the
> way the Width control is and can freely slide up and down from one sideband
> to the other (and affects how the Width control operates as described
> above).  The "Reset" button returns only the Shift slider to its original
> position.  Clicking on another filter button resets the receiver to the
> filter settings assigned to that button, but
> Var1 remains as you set it, until you change it again.
> 
> High/Low
> The High control shifts only the high frequency edge of the passband.  
> It is inactive when a pre-defined Filter button is selected, but becomes
> active when Var1 or Var2 is selected.  It is also possible to control it
> using the CAT interface or a MIDI controller.  When you do that while a
> pre-set filter button is selected, Var1 is automatically selected, just as
> with the Width and Shift sliders.  The Low control works the same way, but
> affects the low frequency edge of the passband. Mapping a MIDI controller
> knob to these functions gives you a control that operates just like the Low
> Cut and High Cut adjustments some transceivers provide.
> 
> CW Pitch
> The CW Pitch control determines how far (in Hz) a CW signal is offset so
> that it produces an audible tone when the VFO is tuned to indicate the
> signal's actual frequency.  Without this offset, tuning a CW signal to
> zero-beat would be at the actual zero-beat point where no audible tone would
> be present because its frequency is zero.  Thus, in CW mode, when you tune
> the VFO to a point where you hear a station's tone exactly match the CW
> Pitch setting, you are tuned to transmit at that station's exact frequency.
> 
> Changing the CW Pitch control has several effects, and its interaction with
> the filter buttons can get a little complicated. First, the audible tone at
> "zero-beat" (i.e. when tuned so that you transmit exactly on the other
> station's frequency) changes, and so does the sidetone as an aid to tuning
> in a station to match the CW Pitch (and offset).  Second, the CW filters are
> all adjusted to keep themselves at your originally set bandwidths and
> centered on the CW Pitch (offset) frequency. That way, whenever a CW signal
> is tuned to its exact frequency, it's positioned in the center of the
> passband.
> 
> The CW Pitch isn't usually adjusted as part of tuning in a station and
> tweaking filters to reduce interference. And normally, when you customize
> your CW Filter button settings, you configure all of them while keeping the
> CW Pitch setting constant, using the Width (or Low and
> High) setting for each button, centered around the CW Pitch frequency.  
> Once set that way, they will always return to these settings whenever you
> choose that particular CW Pitch.  When you vary the pitch from that value,
> the CW filters change themselves to track the CW Pitch as described above
> (but, of course, they retain their width as originally set to match their
> button's label).  Note, however, if you customize a CW filter button in a
> way that is not centered on the CW Pitch frequency, the next time you change
> CW Pitch that filter will center itself.  Bandwidth takes priority over
> Low/High setting values for the filter selection buttons, so that their
> labels always match their bandwidths.  There is one exception: If you lower
> the CW Pitch below the point where the passband edge hits the sideband
> (image) limit, the passband stops moving while you can continue to lower the
> pitch - but the pitch/offset point will no longer be centered in the
> passband.
> 
> 73,
> Doug, W5WC
> Chris, W2PA
> Warren, NR0V
> 
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