....allowing myself to degenerate OT a bit....
Yeah, pick, up a vintage TC Electronic TC2290 on E-bay for only $1500
and you can have the best delay around... and sound like "vintage" U2
songs at the same time. I'm going to start referring to Skipp as "The
Edge" :) :)
Sorry, could not help that one -- I'm silly, I know.
On Oct 23, 2009, at 4:39 PM, skipp025 wrote:
Re: Vox Circuits with Audio Delay
Wish I could claim credit and the star dust for being the
first one to think it up... but nay.
I first saw it over a friends house, where he was using a
rack mounted semi pro-audio (band) chorus/delay unit with
the NASA Shuttle Audio from a Satellite Receiver.
So you could raid your old band music equipment, find a low
cost (often stereo) unit off Ebay or buy a delay module
made for communications audio applications.
You need only parallel your COS/COS logic circuit onto the
same audio source.
s.
I'd give his name/call-sign credit but he's a group member
here and letting him find out I learned something from him is
almost too much to bear/admit. But the NASA Shuttle Audio
part of the story already is the give-away.
> "Paul Plack" <pl...@...> wrote:
>
> John, I experimented with that once, and in some situations, it's
the most elegant way to derive a COS-like logic signal from an audio
stream that doesn't carry imbedded switching info. A fast, stable
VOX gate listening to the output of a squelched radio receiver can
provide a very useful switching signal.
>
> Set the VOX threshhold to a point where it ignores the quiescent
noise level of the squelched receiver, but triggers reliably on any
trace of CTCSS tone or ambient noise behind the party transmitting,
and set the VOX delay to zero.
>
> Because it doesn't care about frequency, it can actually act more
quickly than a PLL CTCSS decoder, especially on the lower tones.
>
> 73,
> Paul, AE4KR
>
> ----- Original Message -----
> From: JOHN MACKEY
> To: Repeater-Builder@yahoogroups.com
> Sent: Friday, October 23, 2009 2:45 PM
> Subject: Re: [Repeater-Builder] Re: Audio Delay
>
>
> WHY would someone be using VOX in a system linked to a repeater
(such
> as Echolink)?
>
> ------ Original Message ------
> Received: Fri, 23 Oct 2009 12:49:01 PM PDT
> From: "skipp025" <skipp...@...>
> To: Repeater-Builder@yahoogroups.com
> Subject: [Repeater-Builder] Re: Audio Delay
> SNIP
> > > Helping my echolink node not get confused about
> > > what it is supposed to listen to is my primary purpose
> > > for having the delay.
> >
> > Audio delay lines are killer (great) for use with VOX
> > (voice) operated logic... and a must have for many
> > simulcast transmission packages.
>
