Message-ID: <4F202D69.9090901@usa.net>
Date: Wed, 25 Jan 2012 17:27:21 +0100
From: Alberto di Bene <dibene@usa.net>
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Z-USANET-MsgId: XID247qayqbZ0768X40
Subject: Re: LF: Argo new version
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On 1/25/2012 1:02 AM, Terry GW0EZY wrote:
> Many thanks for this news =96 there is no information on your website y=
et.
I will update my Web site when the new build will ready for distribution.
Main changes are a bigger screen, 800 x 600 now. Argo V2, which I will re=
lease in summer or autumn this year, will
have a dynamically adjustable waterfall size, in real time, even when the=
 waterfall is running. But this version,
V1 build 137, is fixed at 800 x 600.

In addition the sound card is selectable, and the problematic sampling ra=
te of 5512 Hz has been abandoned.
It gives problems with the recent sound cards, and even though Windows ca=
n resample down to that rate,
the frequency accuracy suffers...

Another change is the optional use of a polyphase FFT, where some gain in=
 frequency resolution is achieved at the expenses
of time resolution.  Also the windowing is no more done with the Hamming =
window, but with the Nuttall one.

The time display can be select among local and UTC, and an optional field=
 is present on the panel, where to put
name, call sign and locator, to identify who did the screen capture.

And some minor errors were corrected (and probably new ones have been ins=
erted, but this is unavoidable....:-) :-)   )

A thing I contemplated adding is the timed FTP upload to an FTP server, b=
ut I will do this in a subsequent release,
if there is enough interest for this function.

73  Alberto  I2PHD



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    On 1/25/2012 1:02 AM, Terry GW0EZY wrote:
    <blockquote cite=3D"mid:24D13E8DBE2E48159D9FB05F4C3D941D@intelp4"
      type=3D"cite"><font color=3D"navy" face=3D"Arial" size=3D"2"><span
          style=3D"font-size:
          10.0pt;font-family:Arial;color:navy">Many thanks for this news
          =96 there is
          no information on your website yet.</span></font></blockquote>
    <font face=3D"Tahoma">I will update my Web site when the new build
      will ready for distribution</font>.<br>
    Main changes are a bigger screen, 800 x 600 now. Argo V2, which I
    will release in summer or autumn this year, will<br>
    have a dynamically adjustable waterfall size, in real time, even
    when the waterfall is running. But this version,<br>
    V1 build 137, is fixed at 800 x 600. <br>
    <br>
    In addition the sound card is selectable, and the problematic
    sampling rate of 5512 Hz has been abandoned.<br>
    It gives problems with the recent sound cards, and even though
    Windows can resample down to that rate, <br>
    the frequency accuracy suffers...<br>
    <br>
    Another change is the optional use of a polyphase FFT, where some
    gain in frequency resolution is achieved at the expenses<br>
    of time resolution.=A0 Also the windowing is no more done with the
    Hamming window, but with the Nuttall one.<br>
    <br>
    The time display can be select among local and UTC, and an optional
    field is present on the panel, where to put<br>
    name, call sign and locator, to identify who did the screen capture.<=
br>
    <br>
    And some minor errors were corrected (and probably new ones have
    been inserted, but this is unavoidable....<span
      class=3D"moz-smiley-s1"><span> :-) </span></span><span
      class=3D"moz-smiley-s1"><span> :-) </span></span>=A0 )<br>
    <br>
    A thing I contemplated adding is the timed FTP upload to an FTP
    server, but I will do this in a subsequent release,<br>
    if there is enough interest for this function.<br>
    <br>
    73=A0 Alberto=A0 I2PHD<br>
    <br>
    <br>
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