[linrad] Re: Experience of fast A/D cards?

[<leif@xxxxxxxxxx>]

The output data format is 16 bit so it might be clever
to limit the bandwidth inside the SDR-14.

Linrad-02.00 will work with SDR-14. There is not any user
interface yet, but it is high on my list of priority.

Unfortunately the USB driver works on my laptop only.
The stationary USB is not well supported under the Linux 2.4.xx
kernel and it does not work under Windows 2000 but it seems to
work under Linux 2.6.xx but I have no driver for the FT245
(the USB chip inside the SDR-14) that works under the 2.6
kernel yet.

It was not difficult to set up the interface for the SDR-14.
In case cost is acceptable, this should be an easy solution.
http://www.rfspace.com/products.html

73

Leif / SM5BSZ




> -----Original Message-----
> From: Linrad mailinglist [mailto:linrad@xxxxxxxxxxxxxxxxxxxxx]On Behalf
> Of Dr. David Kirkby
> Sent: Wednesday, June 15, 2005 4:04 PM
> To: Linrad mailinglist
> Subject: [linrad] Experience of fast A/D cards?
>
>
> Has anyone here got any experience of fast A/D cards? By fast, I
> mean I wish to directly digitise a
> 70MHz signal with at least 12 bits of resolution. The sample rate
> does not need to be as high as 140
> MS/s, as I wish to do undersampling and sample at a rate less
> than twice the maximum frequency
> component. The bandwidth of the signal is only 7 kHz, so in
> principal I could sample at 14 kHz or more.
>
> I had a card that attached directly to a TI 6701 DSP, but it has
> never performed to an agreed
> specification.
>
>
>
> --
> Dr. David Kirkby PhD CEng MIEE,
> Senior Research Fellow,
> Department of Medical Physics,
> Mallet Place Engineering Building,
> Gower St,
> University College London,
> London WC1E 6BT.
>
>
> #############################################################
> This message is sent to you because you are subscribed to
>   the mailing list <linrad@xxxxxxxxxxxxxxxxxxxxx>.
> To unsubscribe, E-mail to: <linrad-off@xxxxxxxxxxxxxxxxxxxxx>
> To switch to the DIGEST mode, E-mail to
> <linrad-digest@xxxxxxxxxxxxxxxxxxxxx>
> To switch to the INDEX mode, E-mail to
> <linrad-index@xxxxxxxxxxxxxxxxxxxxx>
> Send administrative queries to  <linrad-request@xxxxxxxxxxxxxxxxxxxxx>
>


#############################################################
This message is sent to you because you are subscribed to
  the mailing list <linrad@xxxxxxxxxxxxxxxxxxxxx>.
To unsubscribe, E-mail to: <linrad-off@xxxxxxxxxxxxxxxxxxxxx>
To switch to the DIGEST mode, E-mail to <linrad-digest@xxxxxxxxxxxxxxxxxxxxx>
To switch to the INDEX mode, E-mail to <linrad-index@xxxxxxxxxxxxxxxxxxxxx>
Send administrative queries to  <linrad-request@xxxxxxxxxxxxxxxxxxxxx>


LINRADDARNIL