[R-390] RE: DSP IF

[Dave Maples]

All: It's not R-390, but is anyone aware of relative INEXPENSIVE DSP eval
boards still to be had?  Everything I see now is $350-$400.

Trying to build an eval board is not on the possible list.  I don't have (a)
good circuit layout software, (b) board-processing facilities, etc., etc.,
...

The idea of doing I & Q demodulation for SSB really intrigues me...

73,
Dave WB4FUR

-----Original Message-----
From: Bob Camp [mailto:ham at cq.nu]
Sent: Thursday, April 21, 2005 7:33 PM
To: Dave Maples
Cc: R-390 HF Receiver List
Subject: DSP IF


Hi

The idea of putting a DSP IF processor on the IF output of an R390
sounds like an interesting project. The nice thing about the 390 is
that you can get at both the IF output *and* the AGC chain without
modifying the radio at all. Given the high performance RF section and
the mechanical filters the result should be very competitive.

Of course this gets into the general direction of witchcraft and the
like ....

	Enjoy!

		Bob Camp
		KB8TQ



On Apr 21, 2005, at 5:22 PM, Dave Maples wrote:

> All: Hmmm...why stop there?  Get a large touch-screen display so the
> radio
> can REALLY be "man-sized", and follow this with a hue-changing routine
> where
> the panel, knobs, and display fade from color to color.
>
> Add DSP to correct distortion in the audio chain.
>
> Possibilities are endless...
>
> Dave WB4FUR
>
> -----Original Message-----
> From: r-390-bounces at mailman.qth.net
> [mailto:r-390-bounces at mailman.qth.net]On Behalf Of Barry
> Sent: Wednesday, April 20, 2005 5:49 PM
> To: r-390 at mailman.qth.net
> Subject: Re: [R-390] Crayola front panels
>
>
> Don't paint the front panel at all.  Mount motor drives on all front
> panel
> controls with the appropriate serial/parallel interface to a computer
> program that looks like the front panel.  Put the R390x right up next
> to the
> antenna to eliminate any feedline loss.  Run the controlling wires from
> there to the computer.
>
> Change the color any way you want, any time you want.
>
> Barry(III) - N4BUQ
>
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