[hpsdr] KISS V1.0.4

[Mark Amos]

Phil, 

Wow, big deal performance improvement in V1.0.4.  I'm running an Atom 330
processor and the processor load is around 15% now (it was in the 30s
before.)

With the performance improvements the display is much less "chunky" and the
controls are all more responsive.  Can you say what kinds of changes you
made to improve the performance so much (what are the things you look for in
the code for big improvements like this?)

I like that squelch control (the left edge slider.)

I don't know if this a bug or operator error: the bandscope shows signals up
to 60 MHz, but when I try to listen to TV Channel 2 up at 59.750, KISS won't
let me enter that frequency - probably too close to the top... It stops
incrementing at 55 MHz.  I never tried it before, so I can't say if it ever
worked.  It's not a big deal, just something I noticed. (The bandscope is
what made me look - I saw a signal up around 59 and wondered if it was
channel 2.)

Anyway, nicely done!

Mark

------------------------------

Message: 12
Date: Sun, 26 Jul 2009 12:50:24 +0800
From: "Phil Harman" <phil at pharman.org>
Subject: [hpsdr] KK Beta V1.0.4 Released
To: <hpsdr at openhpsdr.org>
Message-ID: <96CCCBB26FE7493C8B852BF40FE232C3 at phil>
Content-Type: text/plain; charset="iso-8859-1"

All,

K.I.S.S. Konsole Beta V1.0.4 is now available via SNV here:

< svn://206.216.146.154/svn/repos_hpsdr_kiss/trunk/Beta Release/V1.0.4 Beta
>

In this version - 

Bug Fixes

* Substantial reduction in CPU usage  - Thanks to Willi, SM6OHM, for
spotting this one

General

* More code refinements and clean-up thanks to the magic fingers of George,
K9TRV.

New Feature

*  Squelch Control 

There are actually two Squelch options.  The one marked 'Filter' works as a
conventional squelch and depends on the average signal level in the filter
bandwidth.
The one marked 'Bandscope' works on the maximum signal level across the
width of the current bandscope.  This is for folks who like to monitor
beacons on say 10m and 6m, you can set the Squelch just above the bandnoise
and when any signal is above the Squelch Threshold it will open.

I've also added a way to see, and set, the Squelch Threshold. When either
Squelch is selected a dotted orange line appears across the screen. This
represents the current Threshold.  At the left end of the line is a small
orange box, click on this and you can drag the line vertically to set the
Threshold.

I've also been able to approximately compensate for the different noise
bandwidths when switching between the Bandscope and Filter options.

The Squelch is still WIP so would appreciate any feedback as to how useful
or otherwise the various features are. 

As usual, feebback via the reflector please. 


73's Phil...VK6APH 
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