[Milsurplus] Low Frequency receiver, RBL

[Peter Gottlieb]

I always thought the best SDR would be one embedded inside a more classical 
receiver.  Sort of a hybrid approach where the front end has the filtering and 
low noise capabilities and the decoding and analysis are done by DSP and other 
techniques.

Peter



On 9/3/2014 2:23 PM, KD7JYK DM09 wrote:
> "What do you do with the Alpha card output?  Feed into the PC audio card?"
>
> In the original application it would be fed into a receiving/decoding device
> and the location of the card, and the item it is installed in, could be
> determined.
>
> I figured I'd just hook up a speaker, maybe plug it into the PC, look at it
> with Argo or Spectrum Lab or something.
>
> The audio output at the pin is a few KHz wide so all stations, or whichever
> one could be heard at the moment, would be heard by the ear.
>
> Now that I think about it...
>
> I don't know what kind of filtering there is on the Alpha RX card, most
> likely little or none, might make a good VLF RX in conjunction with a
> computer, think of a poor mans SDR with two to three decade old technology!
>
> Kurt
>
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