On Apr 29, 1:04 am, BDK <B...@[EMAIL PROTECTED]
> wrote:
> In article <33aa57dd-fbb5-4306-8dfe-d7ee9b3c0815
> @[EMAIL PROTECTED]
>, wdoe...@[EMAIL PROTECTED]
says...
>
>
>
> > On Apr 28, 4:56 am, "Rob Cullen" <r...@[EMAIL PROTECTED]
> wrote:
> > > I suspect you've hit the nail on the head Sarah. Operator error
springs to
> > > mind.
>
> > > "Sarah Czepiel" <ninety...@[EMAIL PROTECTED]
> wrote in message
>
> > >news:4qla14hbh2ak4c2o2kp0ilhrk61f0pg7j6@[EMAIL PROTECTED]
>
> > > > On Sun, 27 Apr 2008 19:55:00 -0700 (PDT), wdoe...@[EMAIL PROTECTED]
wrote:
>
> > > > :>Hi - I've gone through five scanners and was wondering if
someone can
> > > > :>recommendone before I run out of money. On all of these
scanners, I
> > > > :>try and set thesquelchso that it skips unused frequencies.
However,
> > > > :>when a used frequency is found, thesquelchchops out most of the
> > > > :>audio. If I turn thesquelchall the way down, I can hear all of
the
> > > > :>audio. I try and use the least amount ofsquelchpossible, but it
> > > > :>still chops the audio so you can't understand anything. Needles
to
> > > > :>say, I'm ticked off that devices could be designed so poorly.
> > > > :>
> > > > :>Thanks in advance.
>
> > > > Can you tell us what scanners you've used? I use the Pro 96,
Pro97, and
> > > > PSR 500. Also have used several different Bearcat, Uniden, and
Radio
> > > > Shack
> > > > models and haven't found thesquelchtoo difficult to regulate.
>
> > > > I assume you've turned thesquelchall the way up and then backed it
> > > > slowly
> > > > down until it just allows the radio to scan thru the frequencies?
That's
> > > > how I fine tune mine. If I have an additional freq. or two that
overloads
> > > > and stops on that setting I back off thesquelchjust slightly to
get
> > > > those
> > > > freqs/channels to scan. So far I don't feel I'm missing anything
and
> > > > everything seems to come in loud and clear.
>
> > > > Am I missing anything? Is this what you've done so far without
success?
>
> > You assume correctly. As I mentioned... I try to use as little
> >squelchas possible.
> > I did have onescannerthat worked not too bad (a Pro 92) that died.
> > I'm looking for another one with no success.
> > I've since bought several on Ebay that are total crap. A pro 2051, a
> > pro 2055, and a few others that I don't recall.
> > I suppose that it could be just bad luck that I got duds.
>
> > I've designed a lot of digital and microprocessor electronics in my
> > day, and what kills me is that it would be so simple and inexpensive
> > to digitally process the audio signal to see if there is a signal
> > present. The computer could then just cut-out thesquelchat that
> > point. Rather it seems that they just use some old crappy analogue
> >squelchcircuit that chops out the audio (especially on weak
> > signals). I'm seriously considering making my ownscannerunless
> > somebody knows of a good one that doesn't use WWII technology.
>
> The only thing that makes sense is either you are getting a lot of bad
> scanners, or you don't understand thatsquelchisn't perfect and very
> weak signals will pop in and out, especially if it's not set correctly.
>
> The latter is my guess. I'm not trying to be mean or anything, but with
> nearly 45 years of listening on tunable receivers and scanners,
thesquelchcircuit was/is basically a non issue with all but the two I
> mentioned before, and one of those was bad out of the box. A replacement
> worked fine. The other I could have fixed, but I just sold it instead.
>
> The scheme you mention for designing asquelchcircuit has already been
> done, in many scanners. It works, but not much better than the "WWII"
> technology in others radios.
>
> I have talked to a lot of people about scanners over the years, and can
> countsquelchissues on the fingers of both hands.
>
> BDK
Can you give me a model, or what is the name of the feature for the
smarter squelch so I can look for it?
With the way it works now, I have to manually turn the squelch right
off and, yes, the signal is bit weak and snowy, but I can hear
everything perfectly. If I turn up the squelch a bit, all I hear is
BA__ DE__ NO__ LE__, etc. All I need is the feature that
automatically does what I have to do manually.
Thanks
|
