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From: Joel Koltner on 10 Dec 2009 13:45
"Joerg" <invalid(a)invalid.invalid> wrote in message
news:7ocotbF3nbog4U2(a)mid.individual.net...
> Interesting, that would be cool. How do you stream the data from the LabJack
> into LTSpice though?

I suspect he's thinking of using LTSpice's ability to suck in a .wav file,
perhaps?

From: Joerg on 11 Dec 2009 12:57
Joel Koltner wrote:
> "Joerg" <invalid(a)invalid.invalid> wrote in message
> news:7ocotbF3nbog4U2(a)mid.individual.net...
>> Interesting, that would be cool. How do you stream the data from the
>> LabJack into LTSpice though?
>
> I suspect he's thinking of using LTSpice's ability to suck in a .wav
> file, perhaps?
>

AFAIR you have to do that by hand, wouldn't be much of a spectrum analyzer.

--
Regards, Joerg

http://www.analogconsultants.com/

"gmail" domain blocked because of excessive spam.
Use another domain or send PM.
From: gravpoet on 11 Dec 2009 13:49
On Dec 9, 6:58 am, stevehamm...(a)oldtimeradio.com (Steve Hammond)
wrote:
> I am looking for spectrum analysis software, with similar capabilities
> to "Sigview" or "Spectrum Lab+, but that will read data from the USB
> port instead of soundcard input.
>
> I don't need dedicated PC test equipment like BitScope, or a full
> blown science package like LabView. Just a way to display the output
> of my LabJack DAQ.
>
> Does anyone have any suggestions?
>
> Steve Hammond

How about using ADC evaluation software from TI or ADI. Not sure if
you can use it for real time analysis but you can at least do post
processing analysis of the data by improting the data to the software
tool.

http://focus.ti.com/docs/toolsw/folders/print/adcpro.html
From: gravpoet on 11 Dec 2009 13:57
On Dec 11, 12:49 pm, gravpoet <tciacciare...(a)gmail.com> wrote:
> On Dec 9, 6:58 am, stevehamm...(a)oldtimeradio.com (Steve Hammond)
> wrote:
>
> > I am looking for spectrum analysis software, with similar capabilities
> > to "Sigview" or "Spectrum Lab+, but that will read data from the USB
> > port instead of soundcard input.
>
> > I don't need dedicated PC test equipment like BitScope, or a full
> > blown science package like LabView. Just a way to display the output
> > of my LabJack DAQ.
>
> > Does anyone have any suggestions?
>
> > Steve Hammond
>
> How about using ADC evaluation software from TI or ADI. Not sure if
> you can use it for real time analysis but you can at least do post
> processing analysis of the data by improting the data to the software
> tool.
>
> http://focus.ti.com/docs/toolsw/folders/print/adcpro.html

DasyLab is much cheaper than LabView...http://www.mccdaq.com/
dasylab.aspx
From: Tim Williams on 11 Dec 2009 16:40
1. If narrow band, mix with LO and downconvert. If wideband, sample
periodically to divide.
2. Feed audio frequency signal into computer's microphone or line input.
3. Record WAV and analyze with your choice of free FFT software.

Mind to keep notes of LO frequency or sample rate to calculate the converted
frequencies.

Tim

--
Deep Friar: a very philosophical monk.
Website: http://webpages.charter.net/dawill/tmoranwms

"Steve Hammond" <stevehammond(a)oldtimeradio.com> wrote in message
news:4b1f9c26.10181609(a)news.tpg.com.au...
>I am looking for spectrum analysis software, with similar capabilities
> to "Sigview" or "Spectrum Lab+, but that will read data from the USB
> port instead of soundcard input.
>
> I don't need dedicated PC test equipment like BitScope, or a full
> blown science package like LabView. Just a way to display the output
> of my LabJack DAQ.
>
> Does anyone have any suggestions?
>
> Steve Hammond


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