Correct,  the panadapter display seems to have more sensitivity now.

73,
Dudley

WA5QPZ
FlexRadio Systems

(512) 250-8595, Option 2
Email: dud...@flexradio.com <dud...@flex-radio.com>
Web: www.flexradio.com <http://www.flex-radio.com>

"Tune in excitement!" ™



On Tue, Nov 30, 2010 at 11:00 AM, Tim Ellison <telli...@itsco.com> wrote:

> This situation is a normal operational aspect of PowerSDR.  What Pierce is
> seeing is the "ambient" signal that is displayed on the Panadapter when the
> mic is keyed.  The signal is -50 dB down.  He sent me a screen shot so I
> could verify it.
>
>
> -Tim
>
>
> -----Original Message-----
> From: flexradio-boun...@flex-radio.biz [mailto:
> flexradio-boun...@flex-radio.biz] On Behalf Of FlexRadio Support, Dudley
> Hurry
> Sent: Tuesday, November 30, 2010 11:41 AM
> To: pierce day
> Cc: Flex
> Subject: Re: [Flexradio] Noise in audio
>
> Pierce,
>
> Sounds like you have the mic gain too high..   With just about any mic,
>  you
> should not need to go above 40 or 50,  particularly with the Flex 1500 or
> 3000 where you have even more mic gain..
>
>
> 73,
> Dudley
>
> WA5QPZ
> FlexRadio Systems
>
> (512) 250-8595, Option 2
> Email: dud...@flexradio.com <dud...@flex-radio.com>
> Web: www.flexradio.com <http://www.flex-radio.com>
>
> "Tune in excitement!" (tm)
>
>
>
> On Tue, Nov 30, 2010 at 6:32 AM, pierce day <pierce...@comcast.net> wrote:
>
> > Tim:
> >
> > The attached file showing the audio noise is a bit smaller.
> >
> > With the mic at 0 the ALC reads -30dB
> > With the mic at 70the ALC reads -2dB
> > With the drive at 100 the wattmeter reads 0 with the mic at normal
> > (37) With the drive at 100 the wattmeter reads 40-70 with the mic at
> > 70
> >
> > I did another DB reset - no change.
> >
> > I removed the mic, inserted a spare plug with pin 7 & 8 shorted - no
> > change.  I then shorted pin 7, 8, and 5 - no change.
> >
> > As I said, others, listening specifically for it, have not heard this
> > noise, but by recording a 'blank' transmission and turning up the
> > volume during replay it is definitely audible as a 'white' noise.
> >
> > The downward expander has no effect on the noise.
> >
> > This noise was not there until I upgraded to 2.0.16.  It's going to be
> > raining all day so might as well delete all the files and reload
> > 2.0.16, unless you have a better idea.
> >
> > Pierce W4ZDI
> >
> >
> >
> > _______________________________________________
> > FlexRadio Systems Mailing List
> > FlexRadio@flex-radio.biz
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> > Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
> > Knowledge Base: http://kc.flexradio.com/  Homepage:
> > http://www.flexradio.com/
> >
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