MIME-Version: 1.0
In-Reply-To: <CAMFjj73P4GEnkpJjQ1LLHBsY3zpbRSCn+FQBXVKeDye2UerPbA@mail.gmail.com>
References: <CAMFjj73P4GEnkpJjQ1LLHBsY3zpbRSCn+FQBXVKeDye2UerPbA@mail.gmail.com>
Date: Fri, 15 Aug 2014 15:09:36 -0400
Message-ID: <CAMFjj71p3xTzFoa_aYrYmYD-=jxAD=VKg2-VHYLovS2iyRPsRg@mail.gmail.com>
From: Warren Ziegler <wd2xgj@gmail.com>
To: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Subject: Re: LF: USB Sound Card?
Content-Type: multipart/alternative; boundary=001a11c248e0270e690500afc3bf
Sender: owner-rsgb_lf_group@blacksheep.org
Precedence: bulk
Reply-To: rsgb_lf_group@blacksheep.org
Status: O

--001a11c248e0270e690500afc3bf
Content-Type: text/plain; charset=UTF-8

I guess I should have been more specific .
What I am seeking is are some sound cards more stable with respect to
sampling rate and calibration? Also, any advantage to 24bit A/D  for LF
data modes?
 I wonder if anyone has tried 192kHz sample rate for direct reception of
73kHz?

73 & Tnx Warren


On Fri, Aug 15, 2014 at 2:27 PM, Warren Ziegler <wd2xgj@gmail.com> wrote:

>
> I just acquired a Windows Vista tower computer - the price was right it
> was free!
> Seems that there is a problem with the internal sound card, but everything
> else checks out FB.
> I plan on using it with WSPR and other digital modes, am thinking of an
> external USB sound card - will any old sound card do ? Or do I need one
> with a calibrated sampling rate? I suspect that I will need something
> really good for Spectrum Laboratory if I want to sample at microHertz rates.
>
> 73 & Tnx Warren K2ORS
>
>
>
>


-- 
73 Warren K2ORS
                WD2XGJ
                WD2XSH/23
                WE2XEB/2
                WE2XGR/1

--001a11c248e0270e690500afc3bf
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">I guess I should have been more specific .<div>What I am s=
eeking is are some sound cards more stable with respect to sampling rate an=
d calibration? Also, any advantage to 24bit A/D =C2=A0for LF data modes?</d=
iv><div>
=C2=A0I wonder if anyone has tried 192kHz sample rate for direct reception =
of 73kHz?</div><div><br></div><div>73 &amp; Tnx Warren</div><div><br></div>=
<div><br></div></div><div class=3D"gmail_extra"><br><br><div class=3D"gmail=
_quote">
On Fri, Aug 15, 2014 at 2:27 PM, Warren Ziegler <span dir=3D"ltr">&lt;<a hr=
ef=3D"mailto:wd2xgj@gmail.com" target=3D"_blank">wd2xgj@gmail.com</a>&gt;</=
span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8e=
x;border-left:1px #ccc solid;padding-left:1ex">
<div dir=3D"ltr"><br clear=3D"all"><div>I just acquired a Windows Vista tow=
er computer - the price was right it was free!</div><div>Seems that there i=
s a problem with the internal sound card, but everything else checks out FB=
.</div>

<div>I plan on using it with WSPR and other digital modes, am thinking of a=
n external USB sound card - will any old sound card do ? Or do I need one w=
ith a calibrated sampling rate? I suspect that I will need something really=
 good for Spectrum Laboratory if I want to sample at microHertz rates.</div=
>

<div><br></div><div>73 &amp; Tnx Warren K2ORS</div><div><br></div><div><br>=
</div><div>=C2=A0<br></div></div>
</blockquote></div><br><br clear=3D"all"><div><br></div>-- <br>73 Warren K2=
ORS<br>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 WD2XGJ <br>=
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 WD2XSH/23<br>=C2=A0=
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 WE2XEB/2<br>=C2=A0 =C2=A0=
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 WE2XGR/1<br><br>=C2=A0
</div>

--001a11c248e0270e690500afc3bf--