[amsat-bb] Re: DSP Speaker
whiteld at usa.net
Thu Apr 5 14:36:20 PDT 2007
Heil Sound in / near St. Louis, MO. may have what you are after.
They bought out a DSP speaker maker and revamped the design a year or two
73 de Lowell
------ Original Message ------
Received: Thu, 05 Apr 2007 01:52:50 PM CDT
From: n3wwn at futuretek.cx
To: amsat-bb at amsat.org
Subject: [amsat-bb] Re: DSP Speaker
> 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
> > 73 de Rich N3WWN
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