Tim, The new (or recently modified) sample rate article in the Knowledge Base
is excellent. Thanks.You say below to make sure VAC cables are not a default
Windows sound device. I bet you're speaking specifically of the VAC cables in
the Playback tab. In my case, the VAC cables in the Recording tab are the only
active recording devices, so one of them is set as the default by Windows. Can
you elaborate on this? How radical do I have to get to make sure that a VAC
recording cable is not set as the default by Windows?Jim KJ2P
> Date: Fri, 29 Jul 2011 17:12:46 -0400
> From: [email protected]
> To: [email protected]
> CC: [email protected]; [email protected]
> Subject: Re: [Flexradio] FlexRadio Digest, Vol 75, Issue 29
>
> Try utilizing the AGC-T for the best SNR which will make reception of
> weak signals better.
> http://kc.flexradio.com/KnowledgebaseArticle50153.aspx
> Use use the VAC gain rather than the AF gain control in the KB references.
>
> Also with Win7, make sure the VAC cables are not a default Windows sound
> device
>
> -and-
>
> The default sampling rate of the Win7 VAC cable sound devices are 48K
> http://kc.flexradio.com/KnowledgebaseArticle50504.aspx
>
> -Tim
> ---
> Tim Ellison, W4TME
> Internet Systems Admin. & Customer Support Engineer
> FlexRadio Systems^(TM)
> 4616 W Howard Ln Ste 1-150
> Austin, TX 78728
> Phone: 512-535-4713 Ext. 223
> Email: [email protected] <mailto:[email protected]>
> Web: www.flexradio.com <http://www.flexradio.com>
>
> logo
> /Tune In Excitement^(TM)
> PowerSDR^(TM) is a trademark of FlexRadio Systems/
>
>
> On 7/29/2011 5:06 PM, Keith Goobie wrote:
> > Tim
> >
> > Speaking of audio levels, was anything changed on the VAC side of things?
> > Since installing 2.1.5, the receive interaction between PowerSDR / VAC /
> > HRD-DM780 is not as resilient. Copy on the DM780 in PSK mode for example is
> > not as robust in challenging conditions. This is a gut feel and wonder if
> > anyone else has the same observation?
> >
> > I have tried varying the levels and not got to a point. VAC version is
> > 4.09 and HRD is the HRD 5.0 beta latest build. Sampling rate is 48000. OS
> > is Win7/SP1. Is there something that one might want to tweak? TX audio is
> > getting good reports.
> >
> > Thanks in advance.
> > Keith
> >
> >
> > On 7/29/11 2:22 PM, "Tim Ellison, W4TME"<[email protected]> wrote:
> >
> >> The audio levels were re-scaled and normalized in PowerSDR v2.1.5 which
> >> could account for the difference.
> >>
> >> -Tim
> >> ---
> >> Tim Ellison, W4TME
> >> Internet Systems Admin.& Customer Support Engineer
> >> FlexRadio Systems^(TM)
> >> 4616 W Howard Ln Ste 1-150
> >> Austin, TX 78728
> >> Phone: 512-535-4713 Ext. 223
> >> Email: [email protected]<mailto:[email protected]>
> >> Web: www.flexradio.com<http://www.flexradio.com>
> >>
> >> logo
> >> /Tune In Excitement^(TM)
> >> PowerSDR^(TM) is a trademark of FlexRadio Systems/
> >>
> >>
> >> On 7/29/2011 1:45 PM, Dan Eisenman wrote:
> >>> Has any one noticed that in V2.1.5 , the Panascope display and the Scope
> >>> display show about half the
> >>> amplitude as version 2.0 ? If you bring AGC-T way high you can get about
> >>> the
> >>> same vertical amplitude as V2.0 .
> >>> 73
> >>> Dan
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