[amsat-bb] Re: DSP Speaker

n3wwn@futuretek.cx n3wwn at futuretek.cx
Thu Apr 5 11:47:48 PDT 2007

This doesn't ring a bell with anyone?

Maybe I dreamed it! hi hi

73 de Rich N3WWN

On Thu, 29 Mar 2007, n3wwn at futuretek.cx wrote:

> Hi!
> I recall reading about a speaker that you can plug into any radio so you
> can keep the squelch open all the time and a DSP will only let audio with
> signals through.
> It was intended to be used to listen for beacons on satellites as well as
> listen for band openings without driving the XYL crazy with static being
> blasted through the house.
> Does anyone else recall this speaker (or inline module)?  I've searched
> and found DSPs that will attenuate white noise, but I haven't seen any
> that turn off the speaker completely in the presence of white noise alone.
> 73 de Rich N3WWN
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